{"id":3911,"date":"2025-11-26T19:21:14","date_gmt":"2025-11-26T11:21:14","guid":{"rendered":"https:\/\/zhss.org\/?p=3911"},"modified":"2025-12-17T11:11:37","modified_gmt":"2025-12-17T03:11:37","slug":"s15500-stainless-steel-15-5ph-bar","status":"publish","type":"post","link":"https:\/\/zhss.org\/fr\/metals\/stainless-steel\/high-performance-stainless-steels\/s15500-stainless-steel-15-5ph-bar\/","title":{"rendered":"15-5PH Stainless Steel (S15500) Bar"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"3911\" class=\"elementor elementor-3911\" data-elementor-post-type=\"post\">\n\t\t\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-921516e e-con-full e-flex e-con e-child\" data-id=\"921516e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4225e9b elementor-widget elementor-widget-heading\" data-id=\"4225e9b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Stainless Steel, Precipitation Hardening\n\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8e8b7eb elementor-widget elementor-widget-heading\" data-id=\"8e8b7eb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">S15500 Stainless Steel (15-5PH) Bar<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-99ab3ca elementor-widget elementor-widget-heading\" data-id=\"99ab3ca\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">A martensitic precipitation hardening chromium-nickel-copper stainless steel.<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-32c0e24 elementor-widget elementor-widget-text-editor\" data-id=\"32c0e24\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/zhss.org\/metals\/stainless-steel\/high-performance-stainless-steels\/s15500-stainless-steel-15-5ph-bar\/\">15-5<\/a> stainless steel is a martensitic precipitation-hardening stainless steel with approximately 15% chromium and 5% nickel. It has high strength, high hardness, and excellent corrosion resistance. Strength can be further increased by a single low temperature heat treatment. Compared to 17-4 it offers better transverse toughness and ductility, better mechanical properties in larger cross-sections, and better forgeability. It is readily weldable. It can be machined in any of the several thermal conditions available to this grade.<\/p><p><a href=\"https:\/\/zhss.org\/metals\/stainless-steel\/high-performance-stainless-steels\/s15500-stainless-steel-15-5ph-bar\/\">15-5<\/a> is used in a variety of industries including:\u00a0Aerospace, chemical, food processing, general metal working, paper industries &amp; petrochemical.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-2f75670 e-grid e-con-full e-con e-child\" data-id=\"2f75670\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-25ff447 elementor-widget elementor-widget-button\" data-id=\"25ff447\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/zhss.org\/contact\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">TALK TO AN EXPERT<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1609203 elementor-position-inline-start elementor-mobile-position-inline-start elementor-view-default elementor-widget elementor-widget-icon-box\" data-id=\"1609203\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-box.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-box-wrapper\">\n\n\t\t\t\t\t\t<div class=\"elementor-icon-box-icon\">\n\t\t\t\t<span  class=\"elementor-icon\">\n\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-far-file-pdf\" viewBox=\"0 0 384 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M369.9 97.9L286 14C277 5 264.8-.1 252.1-.1H48C21.5 0 0 21.5 0 48v416c0 26.5 21.5 48 48 48h288c26.5 0 48-21.5 48-48V131.9c0-12.7-5.1-25-14.1-34zM332.1 128H256V51.9l76.1 76.1zM48 464V48h160v104c0 13.3 10.7 24 24 24h104v288H48zm250.2-143.7c-12.2-12-47-8.7-64.4-6.5-17.2-10.5-28.7-25-36.8-46.3 3.9-16.1 10.1-40.6 5.4-56-4.2-26.2-37.8-23.6-42.6-5.9-4.4 16.1-.4 38.5 7 67.1-10 23.9-24.9 56-35.4 74.4-20 10.3-47 26.2-51 46.2-3.3 15.8 26 55.2 76.1-31.2 22.4-7.4 46.8-16.5 68.4-20.1 18.9 10.2 41 17 55.8 17 25.5 0 28-28.2 17.5-38.7zm-198.1 77.8c5.1-13.7 24.5-29.5 30.4-35-19 30.3-30.4 35.7-30.4 35zm81.6-190.6c7.4 0 6.7 32.1 1.8 40.8-4.4-13.9-4.3-40.8-1.8-40.8zm-24.4 136.6c9.7-16.9 18-37 24.7-54.7 8.3 15.1 18.9 27.2 30.1 35.5-20.8 4.3-38.9 13.1-54.8 19.2zm131.6-5s-5 6-37.3-7.8c35.1-2.6 40.9 5.4 37.3 7.8z\"><\/path><\/svg>\t\t\t\t<\/span>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t<div class=\"elementor-icon-box-content\">\n\n\t\t\t\t\t\t\t\t\t<h3 class=\"elementor-icon-box-title\">\n\t\t\t\t\t\t<span  >\n\t\t\t\t\t\t\tDOWNLOAD PDF\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/h3>\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f9c83d9 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"f9c83d9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6fa7b70 elementor-widget elementor-widget-heading\" data-id=\"6fa7b70\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Range\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8b21672 elementor-widget elementor-widget-text-editor\" data-id=\"8b21672\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-size: 8pt;\"><strong> PLEASE NOTE<\/strong><\/span><\/p><p>If you do not see what you are looking for, please contact your\u00a0<span style=\"color: #000080;\"><a style=\"color: #000080;\" href=\"https:\/\/zhss.org\/contact\/\">local service centre<\/a>\u00a0<\/span>with your specific requirements.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-41da24a elementor-widget elementor-widget-heading\" data-id=\"41da24a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">15-5PH Stainless Steel Related Specifications\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f0e8730 elementor-widget elementor-widget-shortcode\" data-id=\"f0e8730\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\n<div class=\"wpdt-c row wpDataTableContainerSimpleTable wpDataTables wpDataTablesWrapper\n\"\n    >\n        <table id=\"wpdtSimpleTable-171\"\n           style=\"border-collapse:collapse;\n                   border-spacing:0px;\"\n           class=\"wpdtSimpleTable wpDataTable\"\n           data-column=\"3\"\n           data-rows=\"14\"\n           data-wpID=\"171\"\n           data-responsive=\"0\"\n           data-has-header=\"0\">\n\n                    <tbody>        <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell wpdt-bc-F71100 wpdt-tc-FFFFFF wpdt-bold remove-borders \"\n                                            data-cell-id=\"A1\"\n                    data-col-index=\"0\"\n                    data-row-index=\"0\"\n                    style=\" width:33.333333333333%;                    padding:10px;\n                    \"\n                    >\n                                        System \/ Standard                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-bc-F71100 wpdt-tc-FFFFFF wpdt-bold remove-borders \"\n                                            data-cell-id=\"B1\"\n                    data-col-index=\"1\"\n                    data-row-index=\"0\"\n                    style=\" width:33.333333333333%;                    padding:10px;\n                    \"\n                    >\n                                        Country \/ Region                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-bc-F71100 wpdt-tc-FFFFFF wpdt-bold remove-borders \"\n                                            data-cell-id=\"C1\"\n                    data-col-index=\"2\"\n                    data-row-index=\"0\"\n                    style=\" width:33.333333333333%;                    padding:10px;\n                    \"\n                    >\n                                        Grade \/ Designation                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row even remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A2\"\n                    data-col-index=\"0\"\n                    data-row-index=\"1\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        UNS                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B2\"\n                    data-col-index=\"1\"\n                    data-row-index=\"1\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        International                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C2\"\n                    data-col-index=\"2\"\n                    data-row-index=\"1\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        S15500                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A3\"\n                    data-col-index=\"0\"\n                    data-row-index=\"2\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Common name                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B3\"\n                    data-col-index=\"1\"\n                    data-row-index=\"2\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        International                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C3\"\n                    data-col-index=\"2\"\n                    data-row-index=\"2\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        15-5PH                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row even remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A4\"\n                    data-col-index=\"0\"\n                    data-row-index=\"3\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Trade name                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B4\"\n                    data-col-index=\"1\"\n                    data-row-index=\"3\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        International                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C4\"\n                    data-col-index=\"2\"\n                    data-row-index=\"3\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        XM-12                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A5\"\n                    data-col-index=\"0\"\n                    data-row-index=\"4\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        EN \/ W.Nr.                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B5\"\n                    data-col-index=\"1\"\n                    data-row-index=\"4\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Europe                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C5\"\n                    data-col-index=\"2\"\n                    data-row-index=\"4\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        1.4545 \/ 1.4548                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row even remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A6\"\n                    data-col-index=\"0\"\n                    data-row-index=\"5\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        EN Name                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B6\"\n                    data-col-index=\"1\"\n                    data-row-index=\"5\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Europe                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C6\"\n                    data-col-index=\"2\"\n                    data-row-index=\"5\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        X5CrNiCu15-5 \/ X5CrNiCuNb15-5                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A7\"\n                    data-col-index=\"0\"\n                    data-row-index=\"6\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        ASTM A564                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B7\"\n                    data-col-index=\"1\"\n                    data-row-index=\"6\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        USA                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C7\"\n                    data-col-index=\"2\"\n                    data-row-index=\"6\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        UNS S15500 (XM-12, bars\/forgings)                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row even remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A8\"\n                    data-col-index=\"0\"\n                    data-row-index=\"7\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        ASTM A693                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B8\"\n                    data-col-index=\"1\"\n                    data-row-index=\"7\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        USA                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C8\"\n                    data-col-index=\"2\"\n                    data-row-index=\"7\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        UNS S15500 (XM-12, plate\/sheet)                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A9\"\n                    data-col-index=\"0\"\n                    data-row-index=\"8\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        ASTM A705                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B9\"\n                    data-col-index=\"1\"\n                    data-row-index=\"8\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        USA                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C9\"\n                    data-col-index=\"2\"\n                    data-row-index=\"8\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        UNS S15500 (XM-12, forgings)                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row even remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A10\"\n                    data-col-index=\"0\"\n                    data-row-index=\"9\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        AMS 5659                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B10\"\n                    data-col-index=\"1\"\n                    data-row-index=\"9\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        USA \/ Aerospace                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C10\"\n                    data-col-index=\"2\"\n                    data-row-index=\"9\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        15-5PH (bars, forgings, rings)                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A11\"\n                    data-col-index=\"0\"\n                    data-row-index=\"10\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        AMS 5862                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B11\"\n                    data-col-index=\"1\"\n                    data-row-index=\"10\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        USA \/ Aerospace                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C11\"\n                    data-col-index=\"2\"\n                    data-row-index=\"10\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        15-5PH (sheet, strip, plate)                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row even remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A12\"\n                    data-col-index=\"0\"\n                    data-row-index=\"11\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        AMS 5826                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B12\"\n                    data-col-index=\"1\"\n                    data-row-index=\"11\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        USA \/ Aerospace                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C12\"\n                    data-col-index=\"2\"\n                    data-row-index=\"11\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        15-5PH (wire)                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A13\"\n                    data-col-index=\"0\"\n                    data-row-index=\"12\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        GB (approx.)                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B13\"\n                    data-col-index=\"1\"\n                    data-row-index=\"12\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        China                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C13\"\n                    data-col-index=\"2\"\n                    data-row-index=\"12\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        0Cr15Ni5Cu4Nb (15-5PH)                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row even remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A14\"\n                    data-col-index=\"0\"\n                    data-row-index=\"13\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        JIS (usage)                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B14\"\n                    data-col-index=\"1\"\n                    data-row-index=\"13\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Japan                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C14\"\n                    data-col-index=\"2\"\n                    data-row-index=\"13\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        SUS 15-5PH                    <\/td>\n                                        <\/tr>\n                    <\/table>\n<\/div><style id='wpdt-custom-style-171'>\n\/* \u6574\u4e2a\u8868\u683c\u4e0a\u534a\u90e8\u5206\u5706\u89d2 *\/\n.wpdt-c {\n    border-radius: 8px 8px 0 0;\n    overflow: hidden;\n}\n\n\/* \u4ec5\u8868\u5934\u5706\u89d2 *\/\n.wpdt-c thead th:first-child {\n    border-top-left-radius: 8px;\n}\n\n.wpdt-c thead th:last-child {\n    border-top-right-radius: 8px;\n}.wpDataTablesWrapper table.wpDataTable > tbody > tr > td{ border: none !important; }\n.wpDataTablesWrapper table.wpDataTable > thead > tr > th{ border: none !important; }\n.wpdt-bc-F71100 { background-color: #F71100 !important;}\n.wpdt-tc-FFFFFF { color: #FFFFFF !important;}\n<\/style>\n<style>\n                    \/* th font color *\/\n    .wpdt-c.wpDataTablesWrapper table.wpdtSimpleTable.bt[data-has-header='1'] td.wpdt-header-classes,\n    .wpdt-c.wpDataTablesWrapper table.wpdtSimpleTable thead th,\n    .wpdt-c .wpDataTablesWrapper table.wpDataTable thead th {\n        color: #000000 !important;\n    }\n\n    .wpdt-c .wpDataTablesWrapper table.wpDataTable thead th.sorting:after,\n    .wpdt-c .wpDataTablesWrapper table.wpDataTable thead th.sorting_asc:after {\n        border-bottom-color: #000000 !important;\n    }\n\n    .wpdt-c .wpDataTablesWrapper table.wpDataTable thead th.sorting_desc:after {\n        border-top-color: #000000 !important;\n    }\n\n        \n                    \/* even rows background color *\/\n    .wpdt-c.wpDataTablesWrapper table.wpdtSimpleTable tr.even td,\n    .wpdt-c .wpDataTablesWrapper table.wpDataTable tr.even td,\n    .wpdt-c .wpDataTablesWrapper table.has-columns-hidden tr.row-detail > td {\n        background-color: #FDF6F6 !important;\n    }\n\n                                                                                    \n                <\/style>\n<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1d8c765 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"1d8c765\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d341ebc elementor-widget elementor-widget-heading\" data-id=\"d341ebc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Properties\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-20cf1e3 elementor-widget elementor-widget-n-accordion\" data-id=\"20cf1e3\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;default_state&quot;:&quot;all_collapsed&quot;,&quot;max_items_expended&quot;:&quot;multiple&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"Accordion. Open links with Enter or Space, close with Escape, and navigate with Arrow Keys\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-3440\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-3440\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Chemical Composition <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" role=\"region\" aria-labelledby=\"e-n-accordion-item-3440\" class=\"elementor-element elementor-element-467fbc8 e-con-full e-flex e-con e-child\" data-id=\"467fbc8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-aa1e8d9 elementor-widget elementor-widget-shortcode\" data-id=\"aa1e8d9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\n    <p class=\"wpdt-c\"\n       id=\"wdt-table-description-155\">15-5PH<\/p>\n<div class=\"wpdt-c row wpDataTableContainerSimpleTable wpDataTables wpDataTablesWrapper\n\"\n    >\n        <table id=\"wpdtSimpleTable-155\"\n           style=\"border-collapse:collapse;\n                   border-spacing:0px;\"\n           class=\"wpdtSimpleTable wpDataTable\"\n           data-column=\"2\"\n           data-rows=\"12\"\n           data-wpID=\"155\"\n           data-responsive=\"0\"\n           data-has-header=\"0\">\n\n                    <tbody>        <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell wpdt-bc-0D015E wpdt-tc-FFFFFF wpdt-bold remove-borders \"\n                                            data-cell-id=\"A1\"\n                    data-col-index=\"0\"\n                    data-row-index=\"0\"\n                    style=\" width:50%;                    padding:10px;\n                    \"\n                    >\n                                        Chemical Element                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-bc-0D015E wpdt-tc-FFFFFF wpdt-bold remove-borders \"\n                                            data-cell-id=\"B1\"\n                    data-col-index=\"1\"\n                    data-row-index=\"0\"\n                    style=\" width:50%;                    padding:10px;\n                    \"\n                    >\n                                        % Present                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row even remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A2\"\n                    data-col-index=\"0\"\n                    data-row-index=\"1\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Carbon (C)                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B2\"\n                    data-col-index=\"1\"\n                    data-row-index=\"1\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        0.00 - 0.07                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A3\"\n                    data-col-index=\"0\"\n                    data-row-index=\"2\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Chromium (Cr)                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B3\"\n                    data-col-index=\"1\"\n                    data-row-index=\"2\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        14.00 - 15.50                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row even remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A4\"\n                    data-col-index=\"0\"\n                    data-row-index=\"3\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Manganese (Mn)                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B4\"\n                    data-col-index=\"1\"\n                    data-row-index=\"3\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        0.00 - 1.00                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A5\"\n                    data-col-index=\"0\"\n                    data-row-index=\"4\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Silicon (Si)                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B5\"\n                    data-col-index=\"1\"\n                    data-row-index=\"4\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        0.00 - 1.00                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row even remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A6\"\n                    data-col-index=\"0\"\n                    data-row-index=\"5\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Phosphorous (P)                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B6\"\n                    data-col-index=\"1\"\n                    data-row-index=\"5\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        0.00 - 0.03                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A7\"\n                    data-col-index=\"0\"\n                    data-row-index=\"6\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Sulphur (S)                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B7\"\n                    data-col-index=\"1\"\n                    data-row-index=\"6\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        0.00 - 0.02                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row even remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A8\"\n                    data-col-index=\"0\"\n                    data-row-index=\"7\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Nickel (Ni)                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B8\"\n                    data-col-index=\"1\"\n                    data-row-index=\"7\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        3.50 - 5.50                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A9\"\n                    data-col-index=\"0\"\n                    data-row-index=\"8\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Copper (Cu)                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B9\"\n                    data-col-index=\"1\"\n                    data-row-index=\"8\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        2.50 - 4.50                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row even remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A10\"\n                    data-col-index=\"0\"\n                    data-row-index=\"9\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Molybdenum (Mo)                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B10\"\n                    data-col-index=\"1\"\n                    data-row-index=\"9\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        0.00 - 0.50                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A11\"\n                    data-col-index=\"0\"\n                    data-row-index=\"10\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Niobium (Columbium) (Nb)                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B11\"\n                    data-col-index=\"1\"\n                    data-row-index=\"10\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        0.00 - 0.45                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row even remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A12\"\n                    data-col-index=\"0\"\n                    data-row-index=\"11\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Iron (Fe)                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B12\"\n                    data-col-index=\"1\"\n                    data-row-index=\"11\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Balance                    <\/td>\n                                        <\/tr>\n                    <\/table>\n<\/div><style id='wpdt-custom-style-155'>\n\/* \u6574\u4e2a\u8868\u683c\u4e0a\u534a\u90e8\u5206\u5706\u89d2 *\/\n.wpdt-c {\n    border-radius: 8px 8px 0 0;\n    overflow: hidden;\n}\n\n\/* \u4ec5\u8868\u5934\u5706\u89d2 *\/\n.wpdt-c thead th:first-child {\n    border-top-left-radius: 8px;\n}\n\n.wpdt-c thead th:last-child {\n    border-top-right-radius: 8px;\n}.wpDataTablesWrapper table.wpDataTable > tbody > tr > td{ border: none !important; }\n.wpDataTablesWrapper table.wpDataTable > thead > tr > th{ border: none !important; }\n.wpdt-bc-0D015E { background-color: #0D015E !important;}\n.wpdt-tc-FFFFFF { color: #FFFFFF !important;}\n<\/style>\n<style>\n                    \/* th font color *\/\n    .wpdt-c.wpDataTablesWrapper table.wpdtSimpleTable.bt[data-has-header='1'] td.wpdt-header-classes,\n    .wpdt-c.wpDataTablesWrapper table.wpdtSimpleTable thead th,\n    .wpdt-c .wpDataTablesWrapper table.wpDataTable thead th {\n        color: #000000 !important;\n    }\n\n    .wpdt-c .wpDataTablesWrapper table.wpDataTable thead th.sorting:after,\n    .wpdt-c .wpDataTablesWrapper table.wpDataTable thead th.sorting_asc:after {\n        border-bottom-color: #000000 !important;\n    }\n\n    .wpdt-c .wpDataTablesWrapper table.wpDataTable thead th.sorting_desc:after {\n        border-top-color: #000000 !important;\n    }\n\n        \n                    \/* even rows background color *\/\n    .wpdt-c.wpDataTablesWrapper table.wpdtSimpleTable tr.even td,\n    .wpdt-c .wpDataTablesWrapper table.wpDataTable tr.even td,\n    .wpdt-c .wpDataTablesWrapper table.has-columns-hidden tr.row-detail > td {\n        background-color: #FDF6F6 !important;\n    }\n\n                                                                                    \n                <\/style>\n<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-3441\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-3441\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Mechanical Properties <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" role=\"region\" aria-labelledby=\"e-n-accordion-item-3441\" class=\"elementor-element elementor-element-93d978f e-con-full e-flex e-con e-child\" data-id=\"93d978f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1cc21de elementor-widget elementor-widget-shortcode\" data-id=\"1cc21de\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\n    <p class=\"wpdt-c\"\n       id=\"wdt-table-description-156\">15-5PH<\/p>\n<div class=\"wpdt-c row wpDataTableContainerSimpleTable wpDataTables wpDataTablesWrapper\n\"\n    >\n        <table id=\"wpdtSimpleTable-156\"\n           style=\"border-collapse:collapse;\n                   border-spacing:0px;\"\n           class=\"wpdtSimpleTable wpDataTable\"\n           data-column=\"2\"\n           data-rows=\"5\"\n           data-wpID=\"156\"\n           data-responsive=\"0\"\n           data-has-header=\"0\">\n\n                    <tbody>        <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell wpdt-bc-0D015E wpdt-tc-FFFFFF wpdt-bold remove-borders \"\n                                            data-cell-id=\"A1\"\n                    data-col-index=\"0\"\n                    data-row-index=\"0\"\n                    style=\" width:50%;                    padding:10px;\n                    \"\n                    >\n                                        Mechanical Property                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-bc-0D015E wpdt-tc-FFFFFF wpdt-bold remove-borders \"\n                                            data-cell-id=\"B1\"\n                    data-col-index=\"1\"\n                    data-row-index=\"0\"\n                    style=\" width:50%;                    padding:10px;\n                    \"\n                    >\n                                        Value                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row even remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A2\"\n                    data-col-index=\"0\"\n                    data-row-index=\"1\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Proof Stress                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B2\"\n                    data-col-index=\"1\"\n                    data-row-index=\"1\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        700-1170 MPa                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A3\"\n                    data-col-index=\"0\"\n                    data-row-index=\"2\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Tensile Strength                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B3\"\n                    data-col-index=\"1\"\n                    data-row-index=\"2\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        930-1310 MPa                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row even remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A4\"\n                    data-col-index=\"0\"\n                    data-row-index=\"3\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Elongation A50 mm                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B4\"\n                    data-col-index=\"1\"\n                    data-row-index=\"3\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        10-16 %                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A5\"\n                    data-col-index=\"0\"\n                    data-row-index=\"4\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Hardness Brinell                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B5\"\n                    data-col-index=\"1\"\n                    data-row-index=\"4\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        277-444 HB                    <\/td>\n                                        <\/tr>\n                    <\/table>\n<\/div><style id='wpdt-custom-style-156'>\n\/* \u6574\u4e2a\u8868\u683c\u4e0a\u534a\u90e8\u5206\u5706\u89d2 *\/\n.wpdt-c {\n    border-radius: 8px 8px 0 0;\n    overflow: hidden;\n}\n\n\/* \u4ec5\u8868\u5934\u5706\u89d2 *\/\n.wpdt-c thead th:first-child {\n    border-top-left-radius: 8px;\n}\n\n.wpdt-c thead th:last-child {\n    border-top-right-radius: 8px;\n}.wpDataTablesWrapper table.wpDataTable > tbody > tr > td{ border: none !important; }\n.wpDataTablesWrapper table.wpDataTable > thead > tr > th{ border: none !important; }\n.wpdt-bc-0D015E { background-color: #0D015E !important;}\n.wpdt-tc-FFFFFF { color: #FFFFFF !important;}\n<\/style>\n<style>\n                    \/* th font color *\/\n    .wpdt-c.wpDataTablesWrapper table.wpdtSimpleTable.bt[data-has-header='1'] td.wpdt-header-classes,\n    .wpdt-c.wpDataTablesWrapper table.wpdtSimpleTable thead th,\n    .wpdt-c .wpDataTablesWrapper table.wpDataTable thead th {\n        color: #000000 !important;\n    }\n\n    .wpdt-c .wpDataTablesWrapper table.wpDataTable thead th.sorting:after,\n    .wpdt-c .wpDataTablesWrapper table.wpDataTable thead th.sorting_asc:after {\n        border-bottom-color: #000000 !important;\n    }\n\n    .wpdt-c .wpDataTablesWrapper table.wpDataTable thead th.sorting_desc:after {\n        border-top-color: #000000 !important;\n    }\n\n        \n                    \/* even rows background color *\/\n    .wpdt-c.wpDataTablesWrapper table.wpdtSimpleTable tr.even td,\n    .wpdt-c .wpDataTablesWrapper table.wpDataTable tr.even td,\n    .wpdt-c .wpDataTablesWrapper table.has-columns-hidden tr.row-detail > td {\n        background-color: #FDF6F6 !important;\n    }\n\n                                                                                    \n                <\/style>\n<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-3442\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-3442\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> General Physical Properties <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" role=\"region\" aria-labelledby=\"e-n-accordion-item-3442\" class=\"elementor-element elementor-element-a2ba096 e-flex e-con-boxed e-con e-child\" data-id=\"a2ba096\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d403fd2 elementor-widget elementor-widget-shortcode\" data-id=\"d403fd2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\n    <p class=\"wpdt-c\"\n       id=\"wdt-table-description-157\">Physical Properties of 15-5PH Stainless Steel<\/p>\n<div class=\"wpdt-c row wpDataTableContainerSimpleTable wpDataTables wpDataTablesWrapper\n\"\n    >\n        <table id=\"wpdtSimpleTable-157\"\n           style=\"border-collapse:collapse;\n                   border-spacing:0px;\"\n           class=\"wpdtSimpleTable wpDataTable\"\n           data-column=\"4\"\n           data-rows=\"9\"\n           data-wpID=\"157\"\n           data-responsive=\"0\"\n           data-has-header=\"0\">\n\n                    <tbody>        <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell wpdt-bc-0D015E wpdt-tc-FFFFFF wpdt-bold remove-borders \"\n                                            data-cell-id=\"A1\"\n                    data-col-index=\"0\"\n                    data-row-index=\"0\"\n                    style=\" width:25%;                    padding:10px;\n                    \"\n                    >\n                                        Property                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-bc-0D015E wpdt-tc-FFFFFF wpdt-bold remove-borders \"\n                                            data-cell-id=\"B1\"\n                    data-col-index=\"1\"\n                    data-row-index=\"0\"\n                    style=\" width:25%;                    padding:10px;\n                    \"\n                    >\n                                        Metric                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-bc-0D015E wpdt-tc-FFFFFF wpdt-bold remove-borders \"\n                                            data-cell-id=\"C1\"\n                    data-col-index=\"2\"\n                    data-row-index=\"0\"\n                    style=\" width:25%;                    padding:10px;\n                    \"\n                    >\n                                        Imperial                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-bc-0D015E wpdt-tc-FFFFFF wpdt-bold remove-borders \"\n                                            data-cell-id=\"D1\"\n                    data-col-index=\"3\"\n                    data-row-index=\"0\"\n                    style=\" width:25%;                    padding:10px;\n                    \"\n                    >\n                                        Notes                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row even remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A2\"\n                    data-col-index=\"0\"\n                    data-row-index=\"1\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Density                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B2\"\n                    data-col-index=\"1\"\n                    data-row-index=\"1\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        7.75\u20137.80 g\/cm\u00b3                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C2\"\n                    data-col-index=\"2\"\n                    data-row-index=\"1\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        \u2248 0.28 lb\/in\u00b3                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"D2\"\n                    data-col-index=\"3\"\n                    data-row-index=\"1\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Similar to 17-4PH; used for weight calculations.                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A3\"\n                    data-col-index=\"0\"\n                    data-row-index=\"2\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Modulus of Elasticity (E)                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B3\"\n                    data-col-index=\"1\"\n                    data-row-index=\"2\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        \u2248 200 GPa                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C3\"\n                    data-col-index=\"2\"\n                    data-row-index=\"2\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        \u2248 29 \u00d7 10\u2076 psi                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"D3\"\n                    data-col-index=\"3\"\n                    data-row-index=\"2\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Longitudinal, room-temperature value.                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row even remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A4\"\n                    data-col-index=\"0\"\n                    data-row-index=\"3\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Shear Modulus (G)                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B4\"\n                    data-col-index=\"1\"\n                    data-row-index=\"3\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        \u2248 77 GPa                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C4\"\n                    data-col-index=\"2\"\n                    data-row-index=\"3\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        \u2248 11.2 \u00d7 10\u2076 psi                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"D4\"\n                    data-col-index=\"3\"\n                    data-row-index=\"3\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Derived from E and \u03bd.                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A5\"\n                    data-col-index=\"0\"\n                    data-row-index=\"4\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Poisson\u2019s Ratio (\u03bd)                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B5\"\n                    data-col-index=\"1\"\n                    data-row-index=\"4\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        \u2248 0.28                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C5\"\n                    data-col-index=\"2\"\n                    data-row-index=\"4\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        \u2248 0.28                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"D5\"\n                    data-col-index=\"3\"\n                    data-row-index=\"4\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Typical for martensitic PH stainless steels.                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row even remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A6\"\n                    data-col-index=\"0\"\n                    data-row-index=\"5\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Coefficient of Thermal Expansion (20\u2013100\u00b0C)                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B6\"\n                    data-col-index=\"1\"\n                    data-row-index=\"5\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        \u2248 10.8 \u00d7 10\u207b\u2076 \/\u00b0C                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C6\"\n                    data-col-index=\"2\"\n                    data-row-index=\"5\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        \u2248 6.0 \u00d7 10\u207b\u2076 \/\u00b0F                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"D6\"\n                    data-col-index=\"3\"\n                    data-row-index=\"5\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Similar order to 17-4PH \/ 13-8PH.                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A7\"\n                    data-col-index=\"0\"\n                    data-row-index=\"6\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Thermal Conductivity                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B7\"\n                    data-col-index=\"1\"\n                    data-row-index=\"6\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        \u2248 18 W\/m\u00b7K                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C7\"\n                    data-col-index=\"2\"\n                    data-row-index=\"6\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        \u2248 10.4 BTU\/hr\u00b7ft\u00b7\u00b0F                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"D7\"\n                    data-col-index=\"3\"\n                    data-row-index=\"6\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        At ~20\u00b0C.                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row even remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A8\"\n                    data-col-index=\"0\"\n                    data-row-index=\"7\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Specific Heat Capacity                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B8\"\n                    data-col-index=\"1\"\n                    data-row-index=\"7\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        \u2248 460 J\/kg\u00b7K                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C8\"\n                    data-col-index=\"2\"\n                    data-row-index=\"7\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        \u2248 0.11 BTU\/lb\u00b7\u00b0F                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"D8\"\n                    data-col-index=\"3\"\n                    data-row-index=\"7\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Room-temperature value.                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row odd remove-borders \" >\n                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"A9\"\n                    data-col-index=\"0\"\n                    data-row-index=\"8\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Electrical Resistivity                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"B9\"\n                    data-col-index=\"1\"\n                    data-row-index=\"8\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        \u2248 0.98 \u03bc\u03a9\u00b7m                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"C9\"\n                    data-col-index=\"2\"\n                    data-row-index=\"8\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        \u2248 38 \u03bc\u03a9\u00b7in                    <\/td>\n                                                <td class=\"wpdt-cell  remove-borders \"\n                                            data-cell-id=\"D9\"\n                    data-col-index=\"3\"\n                    data-row-index=\"8\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Increases somewhat with temperature.                    <\/td>\n                                        <\/tr>\n                    <\/table>\n<\/div><style id='wpdt-custom-style-157'>\n\/* \u6574\u4e2a\u8868\u683c\u4e0a\u534a\u90e8\u5206\u5706\u89d2 *\/\n.wpdt-c {\n    border-radius: 8px 8px 0 0;\n    overflow: hidden;\n}\n\n\/* \u4ec5\u8868\u5934\u5706\u89d2 *\/\n.wpdt-c thead th:first-child {\n    border-top-left-radius: 8px;\n}\n\n.wpdt-c thead th:last-child {\n    border-top-right-radius: 8px;\n}.wpDataTablesWrapper table.wpDataTable > tbody > tr > td{ border: none !important; }\n.wpDataTablesWrapper table.wpDataTable > thead > tr > th{ border: none !important; }\n.wpdt-bc-0D015E { background-color: #0D015E !important;}\n.wpdt-tc-FFFFFF { color: #FFFFFF !important;}\n<\/style>\n<style>\n                    \/* th font color *\/\n    .wpdt-c.wpDataTablesWrapper table.wpdtSimpleTable.bt[data-has-header='1'] td.wpdt-header-classes,\n    .wpdt-c.wpDataTablesWrapper table.wpdtSimpleTable thead th,\n    .wpdt-c .wpDataTablesWrapper table.wpDataTable thead th {\n        color: #000000 !important;\n    }\n\n    .wpdt-c .wpDataTablesWrapper table.wpDataTable thead th.sorting:after,\n    .wpdt-c .wpDataTablesWrapper table.wpDataTable thead th.sorting_asc:after {\n        border-bottom-color: #000000 !important;\n    }\n\n    .wpdt-c .wpDataTablesWrapper table.wpDataTable thead th.sorting_desc:after {\n        border-top-color: #000000 !important;\n    }\n\n        \n                    \/* even rows background color *\/\n    .wpdt-c.wpDataTablesWrapper table.wpdtSimpleTable tr.even td,\n    .wpdt-c .wpDataTablesWrapper table.wpDataTable tr.even td,\n    .wpdt-c .wpDataTablesWrapper table.has-columns-hidden tr.row-detail > td {\n        background-color: #FDF6F6 !important;\n    }\n\n                                                                                    \n                <\/style>\n<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9f07a20 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"9f07a20\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-11f7abc e-grid e-con-full e-con e-child\" data-id=\"11f7abc\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-8d097ae e-con-full e-flex e-con e-child\" data-id=\"8d097ae\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-65ae170 elementor-widget elementor-widget-text-editor\" data-id=\"65ae170\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2><strong>Applications of 15-5PH Stainless Steel<\/strong><\/h2><p>15-5PH stainless steel (UNS S15500, EN 1.4545, X5CrNiCuNb15-5) is a precipitation-hardening martensitic stainless steel that combines very high strength, good toughness (including transverse toughness) and useful corrosion resistance. It is widely used for high-integrity structural and mechanical parts, especially in aerospace and demanding industrial applications.<\/p><h3><strong>1. Aerospace Structural and Landing Gear Components<\/strong><\/h3><p>Highly stressed airframe fittings, brackets and structural members<\/p><p>Landing gear pins, axles, trunnions, cylinders and actuating components<\/p><p>Flight-control system parts, hinges and linkages requiring high strength-to-weight ratio<\/p><p>Hardware that needs good transverse properties and fracture toughness as well as corrosion resistance<\/p><h3><strong>2. High-Strength Shafts, Gears and Power-Transmission Parts<\/strong><\/h3><p>Rotor shafts, drive shafts and pump shafts in aerospace and industrial equipment<\/p><p>High-load gears, splined shafts and couplings operating under cyclic loading<\/p><p>Power-transmission components needing high fatigue strength and dimensional stability after aging<\/p><p>Precision rotating parts where both strength and corrosion resistance are required in compact designs<\/p><h3><strong>3. Fasteners, Fittings and Precision Hardware<\/strong><\/h3><p>High-strength bolts, screws, studs and nuts for aerospace, offshore and energy sectors<\/p><p>Pins, clevis pins, bushes and precision fittings in control and actuation systems<\/p><p>Connector bodies, adaptors and high-pressure fittings where leak-tightness and strength are critical<\/p><p>Hardware that must retain preload and resist relaxation in service<\/p><h3><strong>4. Valves, Pumps and Fluid-Control Components<\/strong><\/h3><p>Valve stems, seats, discs and internal trim for water, hydraulic fluids and process media<\/p><p>Pump shafts, impellers and wear rings in mildly to moderately corrosive environments<\/p><p>Flow-control components, chokes and regulators in aerospace, oil and gas and power-generation systems<\/p><p>Parts that combine pressure containment, wear resistance and corrosion resistance with high strength<\/p><h3><strong>5. Petrochemical, Offshore and Power-Generation Equipment<\/strong><\/h3><p>Components in petrochemical plants where high strength and corrosion resistance are both required<\/p><p>Hardware for offshore platforms and subsea equipment exposed to seawater spray or splash zones<\/p><p>High-stress parts in turbines, compressors and auxiliary power-generation equipment<\/p><p>Structural and rotating components where weight saving and reliability are important design drivers<\/p><h3><strong>6. Moulds, Tooling and Industrial Machinery<\/strong><\/h3><p>Injection-moulding machine parts such as tie bars, platens and high-strength tooling inserts<\/p><p>Corrosion-resistant tooling and fixtures exposed to cooling water, hydraulic fluids and shop environments<\/p><p>Precision mechanical parts in packaging, food-processing and industrial machinery that demand high strength and good surface finish<\/p><p>Wear-resistant components where 15-5PH can replace tool steels while offering better corrosion resistance<\/p><h3><strong>7. Medical, Instrumentation and High-Precision Components<\/strong><\/h3><p>High-strength, corrosion-resistant parts in medical devices and equipment (where the specific standard allows 15-5PH use)<\/p><p>Instrumentation housings, clamps and structural parts subjected to mechanical loading and corrosive atmospheres<\/p><p>Precision components that benefit from the alloy\u2019s good machinability in the solution-treated state and dimensional stability after aging<\/p><h3><strong>Summary<\/strong><\/h3><p>15-5PH stainless steel is widely used for high-strength, high-reliability components such as aerospace structural and landing-gear parts, shafts and gears, fasteners and fittings, valve and pump internals, petrochemical and offshore hardware, tooling and precision mechanical components, wherever a combination of very high strength, good toughness (including transverse), dimensional stability after aging and useful corrosion resistance is required in demanding service environments.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-4dd8c14 e-con-full e-flex e-con e-child\" data-id=\"4dd8c14\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-46ca31f elementor-hidden-desktop elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"46ca31f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3733b64 elementor-widget elementor-widget-text-editor\" data-id=\"3733b64\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2><strong>Characteristics of 15-5PH Stainless Steel<\/strong><\/h2><p>15-5PH stainless steel (UNS S15500, EN 1.4545, X5CrNiCuNb15-5) is a precipitation-hardening martensitic stainless steel designed to provide very high strength, good toughness (including transverse toughness) and useful corrosion resistance, with improved property consistency compared to older PH grades like 17-4PH.<\/p><h3><strong>1. Precipitation-Hardening Martensitic Stainless Steel<\/strong><\/h3><p>15-5PH is a Cr\u2013Ni\u2013Cu\u2013Nb (Cb) precipitation-hardening martensitic stainless steel.<br \/>Strength is developed by <strong>solution treatment + aging<\/strong>, which produces a martensitic matrix strengthened by fine copper-rich precipitates and carbides.<br \/>The alloy is supplied solution-treated and then aged to conditions such as H900, H1025, H1100, etc., to reach the specified strength and toughness.<\/p><h3><strong>2. High Strength and Hardness After Aging<\/strong><\/h3><p>15-5PH can achieve <strong>very high tensile and yield strength<\/strong> in the H900\u2013H1025 conditions.<br \/>Strength levels are comparable to, or higher than, 17-4PH at similar aging temperatures.<br \/>By choosing different aging temperatures, designers can tune:<\/p><ul><li><p>Yield and tensile strength<\/p><\/li><li><p>Hardness<\/p><\/li><li><p>Toughness and fatigue performance<br \/>This allows the same grade to be used for both ultra high-strength and more toughness-critical components.<\/p><\/li><\/ul><h3><strong>3. Improved Toughness and Transverse Properties<\/strong><\/h3><p>A key advantage of 15-5PH over 17-4PH is its <strong>improved toughness and more uniform properties<\/strong>, especially in the transverse direction.<br \/>Cleaner steelmaking practices and controlled composition reduce segregation and non-metallic inclusions.<br \/>As a result, 15-5PH offers:<\/p><ul><li><p>Better <strong>through-thickness and transverse toughness<\/strong><\/p><\/li><li><p>More consistent mechanical properties across large sections and complex shapes<br \/>This makes it attractive for <strong>aerospace structural parts, landing gear and highly stressed fittings<\/strong>.<\/p><\/li><\/ul><h3><strong>4. Good Corrosion Resistance<\/strong><\/h3><p>15-5PH offers corrosion resistance <strong>similar to 17-4PH and better than conventional martensitic stainless steels<\/strong> (e.g. 410 \/ 420).<br \/>It performs well in many atmospheric, fresh-water and mildly corrosive industrial environments.<br \/>While it does not match molybdenum-bearing austenitic grades (e.g. 316) in very aggressive chloride or chemical media, it provides an excellent balance of <strong>strength + corrosion resistance<\/strong> for many mechanical and structural applications.<\/p><h3><strong>5. Heat Treatment Flexibility and Dimensional Stability<\/strong><\/h3><p>Like other PH stainless steels, 15-5PH is heat treated by aging at relatively <strong>low temperatures<\/strong> after solution treatment.<br \/>This gives good <strong>dimensional stability<\/strong>, allowing tight tolerances to be achieved after final aging with minimal distortion.<br \/>Different aging conditions (e.g. H900, H1025, H1075, H1100) offer a spectrum from <strong>maximum strength<\/strong> to <strong>higher toughness and better stress-corrosion performance<\/strong>, letting engineers optimise properties for each design.<\/p><h3><strong>6. Machinability and Fabrication Behaviour<\/strong><\/h3><p>Machinability of 15-5PH is <strong>moderate to good for a high-strength stainless steel<\/strong>:<\/p><ul><li><p>Rough machining is typically done in the solution-treated or softer aged conditions.<\/p><\/li><li><p>After aging, light finishing cuts and grinding achieve final dimensions and surface finish.<br \/>The alloy can also be <strong>forged and hot worked<\/strong> using standard high-alloy practices, then solution treated and aged.<br \/>With suitable procedures and fillers, 15-5PH is <strong>weldable<\/strong>, though\u2014as with all high-strength martensitic PH grades\u2014post-weld aging and careful heat-input control are important to maintain toughness and corrosion resistance.<\/p><\/li><\/ul><h3><strong>7. Magnetic Properties<\/strong><\/h3><p>Because it is a martensitic precipitation-hardening stainless steel, 15-5PH is <strong>strongly magnetic<\/strong> in all aged conditions.<br \/>This is useful for applications involving magnetic clamping, sensing or assembly and distinguishes it from non-magnetic austenitic grades like 304 \/ 316 in the annealed state.<\/p><h3><strong>Summary<\/strong><\/h3><p>15-5PH stainless steel is a high-strength, precipitation-hardening martensitic alloy that combines very high tensile and yield strength, improved toughness and transverse properties, good corrosion resistance, heat-treatment flexibility, reasonable machinability and strong magnetism, making it a preferred choice for aerospace structural parts, landing-gear components, high-strength shafts, gears, fasteners, valve and pump internals, and other critical mechanical applications where reliability and property consistency are essential.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7a3e020 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"7a3e020\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-398ba8e elementor-widget elementor-widget-heading\" data-id=\"398ba8e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Additional Information\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f273836 elementor-widget elementor-widget-n-accordion\" data-id=\"f273836\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;default_state&quot;:&quot;all_collapsed&quot;,&quot;max_items_expended&quot;:&quot;multiple&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"Accordion. Open links with Enter or Space, close with Escape, and navigate with Arrow Keys\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2540\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2540\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Weldability <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" role=\"region\" aria-labelledby=\"e-n-accordion-item-2540\" class=\"elementor-element elementor-element-af9c5ec e-con-full e-flex e-con e-child\" data-id=\"af9c5ec\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8f22bda elementor-widget elementor-widget-text-editor\" data-id=\"8f22bda\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2><strong>Weldability of 15-5PH Stainless Steel<\/strong><\/h2><p>15-5PH stainless steel (UNS S15500, 1.4545) is weldable, but like all high-strength precipitation-hardening martensitic stainless steels it must be welded with <strong>controlled procedures<\/strong> and appropriate post-weld heat treatment to maintain strength, toughness and corrosion resistance.<\/p><h3><strong>1. General Weldability Characteristics<\/strong><\/h3><ul><li><p>15-5PH can be welded by common fusion processes, but it is <strong>not<\/strong> as forgiving as austenitic grades such as 304\/316.<\/p><\/li><li><p>The alloy should be treated as a <strong>high-strength, crack-sensitive material<\/strong>, especially in hardened conditions.<\/p><\/li><li><p>Incorrect procedures (no PWHT, excessive heat input, poor filler choice) can lead to:<\/p><ul><li><p>Reduced toughness in the weld and HAZ<\/p><\/li><li><p>Local soft spots or over-hard regions<\/p><\/li><li><p>Increased risk of cracking and reduced corrosion resistance<\/p><\/li><\/ul><\/li><\/ul><h3><strong>2. Recommended Welding Condition of the Base Metal<\/strong><\/h3><ul><li><p>Welding is normally done in the <strong>solution-treated (unaged) condition<\/strong>.<\/p><\/li><li><p>After welding, the whole part or assembly is <strong>aged to the specified condition<\/strong> (e.g. H900, H1025, H1100).<\/p><\/li><li><p>Welding in fully aged, maximum-strength conditions is <strong>not recommended<\/strong> except for very minor, non-critical operations, because:<\/p><ul><li><p>The risk of cold cracking and loss of toughness is higher<\/p><\/li><li><p>Property control across the weld and HAZ is more difficult<\/p><\/li><\/ul><\/li><\/ul><h3><strong>3. Suitable Welding Processes<\/strong><\/h3><p>15-5PH can be welded with most standard processes, for example:<\/p><ul><li><p><strong>GTAW (TIG)<\/strong> \u2013 preferred for high-quality, low-heat-input welds and thin sections<\/p><\/li><li><p><strong>GMAW (MIG)<\/strong> \u2013 suitable for production welding of thicker sections with good parameter control<\/p><\/li><li><p><strong>SMAW (MMA)<\/strong> \u2013 usable for repair and site welding with low-hydrogen electrodes<\/p><\/li><li><p><strong>Laser or electron-beam welding<\/strong> \u2013 for precision joints and minimal distortion in critical components<\/p><\/li><\/ul><p>Process selection depends on thickness, joint design, accessibility and quality\/inspection requirements.<\/p><h3><strong>4. Filler Metal Selection<\/strong><\/h3><ul><li><p>For matching strength and corrosion behaviour, <strong>15-5PH or 17-4PH-type matching fillers<\/strong> are typically used.<\/p><\/li><li><p>Matching fillers allow weld metal to respond to <strong>aging heat treatment<\/strong> in a similar way to the base metal, giving:<\/p><ul><li><p>Comparable strength<\/p><\/li><li><p>Consistent hardness across weld, HAZ and parent material<\/p><\/li><\/ul><\/li><li><p>In some special cases, <strong>austenitic stainless fillers<\/strong> may be used (e.g. for dissimilar joints or to maximise weld toughness), but:<\/p><ul><li><p>Weld-metal strength will be lower than that of aged 15-5PH<\/p><\/li><li><p>This is usually acceptable only where the weld is not the critical load path<\/p><\/li><\/ul><\/li><\/ul><h3><strong>5. Preheat and Interpass Temperature Control<\/strong><\/h3><ul><li><p>Preheat is generally <strong>modest or not required<\/strong> for thin or lightly restrained joints, but for thicker or highly restrained sections a moderate preheat can:<\/p><ul><li><p>Reduce cooling rate<\/p><\/li><li><p>Lower the risk of hydrogen-assisted cracking<\/p><\/li><\/ul><\/li><li><p>Interpass temperature should be <strong>controlled<\/strong>:<\/p><ul><li><p>Avoid very low interpass temperatures that cause steep thermal gradients<\/p><\/li><li><p>Avoid excessive build-up of heat that can over-temper or coarsen the microstructure<\/p><\/li><\/ul><\/li><li><p>In all cases, aim for <strong>consistent, moderate heat input<\/strong> rather than wide swings in temperature.<\/p><\/li><\/ul><h3><strong>6. Post-Weld Heat Treatment and Aging<\/strong><\/h3><ul><li><p>The usual route is:<\/p><ul><li><p>Weld in the <strong>solution-treated state<\/strong><\/p><\/li><li><p>Then <strong>age the entire component<\/strong> to the required condition (H900, H1025, H1100, etc.)<\/p><\/li><\/ul><\/li><li><p>Benefits of post-weld aging:<\/p><ul><li><p>Restores <strong>high strength<\/strong> in weld metal and HAZ<\/p><\/li><li><p>Helps equalise <strong>hardness and microstructure<\/strong> across the joint<\/p><\/li><li><p>Relieves a significant portion of <strong>residual stresses<\/strong> from welding<\/p><\/li><\/ul><\/li><li><p>For the most critical components, specifications may call for:<\/p><ul><li><p>Re-solution treatment followed by aging after welding, or<\/p><\/li><li><p>A specific combined PWHT cycle qualified by testing<\/p><\/li><\/ul><\/li><\/ul><h3><strong>7. Effect on Mechanical and Corrosion Properties<\/strong><\/h3><ul><li><p>Properly welded and aged joints can achieve:<\/p><ul><li><p>Strength levels close to the parent 15-5PH<\/p><\/li><li><p>Good toughness, including acceptable transverse toughness<\/p><\/li><li><p>Corrosion resistance similar to the base metal in the intended environment<\/p><\/li><\/ul><\/li><li><p>Poor welding practice can lead to:<\/p><ul><li><p>Soft, under-aged or over-aged regions with reduced strength<\/p><\/li><li><p>Brittle zones with low impact toughness<\/p><\/li><li><p>Reduced resistance to stress-corrosion cracking or general corrosion, especially near weld toes<\/p><\/li><\/ul><\/li><\/ul><h3><strong>Summary<\/strong><\/h3><p>15-5PH stainless steel is weldable, but must be handled as a high-strength precipitation-hardening martensitic alloy: weld in the solution-treated condition using controlled heat input and suitable matching fillers, then apply an appropriate aging or post-weld heat treatment so that weld metal, HAZ and base material develop uniform strength, toughness and corrosion resistance for demanding aerospace and high-integrity service.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2541\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2541\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Fabrication <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" role=\"region\" aria-labelledby=\"e-n-accordion-item-2541\" class=\"elementor-element elementor-element-667c3e8 e-flex e-con-boxed e-con e-child\" data-id=\"667c3e8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b6d094b elementor-widget elementor-widget-text-editor\" data-id=\"b6d094b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2><strong>Fabrication of 15-5PH Stainless Steel<\/strong><\/h2><p>15-5PH stainless steel (UNS S15500, 1.4545) is a precipitation-hardening martensitic stainless steel. It can be forged, machined and welded successfully, but all fabrication steps must be coordinated with the <strong>solution treatment + aging<\/strong> schedule to control strength, toughness and dimensional stability.<\/p><h3><strong>1. General Fabrication Approach<\/strong><\/h3><ul><li><p>15-5PH is usually supplied in the <strong>solution-treated (annealed) condition<\/strong>.<\/p><\/li><li><p>Major forming, forging and <strong>rough machining<\/strong> are best done before final aging.<\/p><\/li><li><p>After aging to the required condition (e.g. H900, H1025, H1100), only <strong>light finishing cuts or grinding<\/strong> should be applied.<\/p><\/li><li><p>Because the alloy can reach very high strength, fabrication planning must consider <strong>distortion, residual stresses and final tolerances<\/strong> from the beginning.<\/p><\/li><\/ul><h3><strong>2. Forming and Cold Working<\/strong><\/h3><ul><li><p>Cold formability is <strong>limited<\/strong> compared with austenitic grades (304\/316) but adequate for:<\/p><ul><li><p>Light bending with generous radii<\/p><\/li><li><p>Straightening, sizing and minor geometry adjustments<\/p><\/li><\/ul><\/li><li><p>Most cold work should be done in the <strong>solution-treated or softer aged condition<\/strong>, not in the highest-strength states.<\/p><\/li><li><p>Heavy cold work (e.g. large reductions, tight bends) should be followed by <strong>solution treatment and re-aging<\/strong> or at least stress relief to restore toughness and dimensional stability.<\/p><\/li><\/ul><h3><strong>3. Hot Working and Forging<\/strong><\/h3><ul><li><p>15-5PH can be hot worked and forged using standard stainless\/high-alloy practices.<\/p><\/li><li><p>Forging is carried out in an appropriate high-temperature range, then:<\/p><ul><li><p>Air cooled or controlled cooled<\/p><\/li><li><p><strong>Solution treated<\/strong> to produce a uniform martensitic structure<\/p><\/li><\/ul><\/li><li><p>Adequate reductions and proper temperature control help achieve a <strong>fine, even grain size<\/strong>, improving toughness and transverse properties.<\/p><\/li><li><p>After hot working and solution treatment, parts are ready for rough machining and later aging.<\/p><\/li><\/ul><h3><strong>4. Machining<\/strong><\/h3><ul><li><p>Machinability is <strong>moderate to good<\/strong> for a high-strength stainless steel.<\/p><\/li><li><p>Rough machining is best performed in the <strong>solution-treated or lower-strength aged condition<\/strong>.<\/p><\/li><li><p>After aging to final strength, use <strong>light finishing cuts or grinding<\/strong> only, to avoid excessive cutting forces and tool wear.<\/p><\/li><li><p>Good practice:<\/p><ul><li><p>Rigid fixturing and sharp carbide tooling<\/p><\/li><li><p>Moderate speeds with adequate feed<\/p><\/li><li><p>Generous coolant for heat and chip control<\/p><\/li><\/ul><\/li><\/ul><h3><strong>5. Heat Treatment in the Fabrication Route<\/strong><\/h3><ul><li><p>Heat treatment is central to the fabrication sequence:<\/p><ul><li><p>Hot working (if any) \u2192 <strong>solution treatment<\/strong> \u2192 rough machining \u2192 <strong>aging (H900 \/ H1025 \/ H1100 etc.)<\/strong> \u2192 finish machining \/ grinding.<\/p><\/li><\/ul><\/li><li><p>Aging at relatively low temperatures gives <strong>good dimensional stability<\/strong>, allowing tight tolerances after final heat treatment.<\/p><\/li><li><p>Aging condition is chosen to balance <strong>strength, toughness and stress-corrosion performance<\/strong> for the target application.<\/p><\/li><\/ul><h3><strong>6. Welding as Part of Fabrication<\/strong><\/h3><ul><li><p>When welding is required, it is normally done in the <strong>solution-treated condition<\/strong>.<\/p><\/li><li><p>After welding, the whole assembly is <strong>aged<\/strong> so weld metal, HAZ and base metal develop:<\/p><ul><li><p>Similar strength<\/p><\/li><li><p>Compatible hardness and microstructure<\/p><\/li><\/ul><\/li><li><p>Low-hydrogen procedures, controlled heat input and suitable fillers (15-5PH\/17-4PH type or austenitic, depending on design) are important to minimise cracking and preserve toughness and corrosion resistance.<\/p><\/li><\/ul><h3><strong>7. Dimensional Stability, Grinding and Surface Finishing<\/strong><\/h3><ul><li><p>Because 15-5PH hardens by martensitic transformation and aging, <strong>distortion control<\/strong> is important:<\/p><ul><li><p>Rough machine before final aging<\/p><\/li><li><p>Allow for small movements during heat treatment<\/p><\/li><li><p>Finish machine or grind after final aging.<\/p><\/li><\/ul><\/li><li><p>The alloy can be ground and polished to <strong>very high surface quality<\/strong>, which is critical for:<\/p><ul><li><p>Shafts and bearing seats<\/p><\/li><li><p>Valve and pump components<\/p><\/li><li><p>Precision mechanical parts and sealing surfaces<\/p><\/li><\/ul><\/li><li><p>Proper removal of scale, oxides and machining marks also improves <strong>fatigue life and corrosion performance<\/strong>.<\/p><\/li><\/ul><h3><strong>Summary<\/strong><\/h3><p>15-5PH stainless steel can be fabricated into high-strength, high-reliability components by performing most forming, forging and rough machining in the solution-treated condition, then applying the appropriate aging treatment and finishing with light machining or grinding, while carefully controlling welding procedures, residual stresses, distortion and surface quality to achieve the required mechanical properties and dimensional accuracy.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2542\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2542\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Hot Working <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" role=\"region\" aria-labelledby=\"e-n-accordion-item-2542\" class=\"elementor-element elementor-element-c8b02c3 e-flex e-con-boxed e-con e-child\" data-id=\"c8b02c3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7ed5ec0 elementor-widget elementor-widget-text-editor\" data-id=\"7ed5ec0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2><strong>Hot Working of 15-5PH Stainless Steel<\/strong><\/h2><p>15-5PH stainless steel (UNS S15500, 1.4545) is a precipitation-hardening martensitic stainless steel that can be forged and hot worked successfully when temperature, reduction and cooling are properly controlled. Correct hot-working practice is important to obtain a fine, uniform structure before solution treatment and aging.<\/p><h3><strong>1. Recommended Hot Working Temperature Range<\/strong><\/h3><ul><li><p>Typical hot-working \/ forging range: <strong>about 950\u20131,050\u00b0C (1,740\u20131,920\u00b0F)<\/strong><\/p><\/li><li><p>Start deformation towards the <strong>upper end<\/strong> of this range for best plasticity.<\/p><\/li><li><p>Finish working <strong>above roughly 870\u00b0C (\u22481,600\u00b0F)<\/strong> to avoid cracking as ductility decreases at lower temperatures.<\/p><\/li><li><p>Exact temperatures and soak times should follow the relevant mill or product specification.<\/p><\/li><\/ul><h3><strong>2. Heating and Forging Practice<\/strong><\/h3><ul><li><p>Heat the material <strong>slowly and uniformly<\/strong> through the section before heavy deformation.<\/p><\/li><li><p>Use <strong>firm, substantial reductions<\/strong> per pass (not light tapping) to promote good grain refinement.<\/p><\/li><li><p>For large forgings or complex shapes, <strong>reheat<\/strong> as soon as the temperature drops near the lower working limit.<\/p><\/li><li><p>Avoid long holding at the very top of the range to limit <strong>grain growth and scaling<\/strong>.<\/p><\/li><\/ul><p>Correct forging practice prepares the microstructure for subsequent solution treatment and aging.<\/p><h3><strong>3. Cooling After Hot Working<\/strong><\/h3><ul><li><p>After forging or hot forming, parts are usually cooled in <strong>still air<\/strong> or controlled conditions.<\/p><\/li><li><p>Hot working is normally followed by a full <strong>solution treatment<\/strong> to develop a uniform martensitic structure.<\/p><\/li><li><p>After solution treatment, the material is <strong>aged<\/strong> to the specified condition (H900, H1025, H1100, etc.) to achieve the required strength and toughness.<\/p><\/li><li><p>Very slow furnace cooling through the transformation range should be avoided when uniform high properties are required.<\/p><\/li><\/ul><h3><strong>4. Surface Scale, Decarburisation and Cleanup<\/strong><\/h3><ul><li><p>At forging temperatures, 15-5PH will develop <strong>oxide scale<\/strong> and may suffer some surface roughening.<\/p><\/li><li><p>Allow enough machining\/grinding allowance to remove scale and any decarburised or damaged surface layer.<\/p><\/li><li><p>After hot working and solution treatment, use <strong>pickling, blasting or machining<\/strong> to restore a clean metallic surface.<\/p><\/li><li><p>Clean, sound surfaces are important for <strong>fatigue performance and corrosion resistance<\/strong>.<\/p><\/li><\/ul><h3><strong>5. Influence on Microstructure and Mechanical Properties<\/strong><\/h3><ul><li><p>Proper hot working in the correct temperature range produces a <strong>fine, uniform grain size<\/strong>.<\/p><\/li><li><p>A refined grain structure improves <strong>toughness, fatigue strength and transverse properties<\/strong>.<\/p><\/li><li><p>Insufficient reduction, overheating or working over too wide a temperature range can leave <strong>coarse or non-uniform grains<\/strong>, reducing toughness and consistency.<\/p><\/li><li><p>A subsequent <strong>solution treatment + aging<\/strong> is essential to reset the microstructure and fully develop the precipitation-hardening response.<\/p><\/li><\/ul><h3><strong>6. Distortion, Cracking Control and Design Considerations<\/strong><\/h3><ul><li><p>Design preforms and forgings with <strong>smooth transitions and uniform section thickness<\/strong> to reduce internal stresses.<\/p><\/li><li><p>Avoid sharp corners, abrupt section changes and heavy local reductions that can cause cracking during forging or cooling.<\/p><\/li><li><p>For long shafts or complex shapes, consider intermediate <strong>stress relief<\/strong> if very heavy reductions are applied.<\/p><\/li><li><p>Inspect forgings for <strong>laps, folds and surface cracks<\/strong> before committing to final heat treatment and machining to minimise scrap and rework.<\/p><\/li><\/ul><h3><strong>Summary<\/strong><\/h3><p>Hot working of 15-5PH stainless steel is best carried out around <strong>950\u20131,050\u00b0C<\/strong> with uniform heating, substantial reductions and air cooling, followed by solution treatment and aging; careful control of temperature, deformation and post-forging cleanup is essential to obtain a fine, consistent microstructure, minimise defects and deliver reliable high-strength properties in the finished components.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2543\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"4\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2543\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Heat Resistance <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" role=\"region\" aria-labelledby=\"e-n-accordion-item-2543\" class=\"elementor-element elementor-element-87b3e46 e-flex e-con-boxed e-con e-child\" data-id=\"87b3e46\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bc92608 elementor-widget elementor-widget-text-editor\" data-id=\"bc92608\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2><strong>Heat Resistance of 15-5PH Stainless Steel<\/strong><\/h2><p>15-5PH stainless steel (UNS S15500, 1.4545) offers good heat resistance for a high-strength precipitation-hardening martensitic stainless steel. It is designed to retain useful strength and toughness at <strong>moderately elevated temperatures<\/strong>, but it is <strong>not<\/strong> a dedicated creep-resistant or high-temperature alloy.<\/p><h3><strong>1. Service Temperature Range<\/strong><\/h3><p>15-5PH is typically used in continuous service <strong>up to about 300\u2013315\u00b0C (\u2248570\u2013600\u00b0F)<\/strong>.<br \/>Within this range it maintains a favourable combination of high tensile\/yield strength and useful toughness.<br \/>Short-term or intermittent exposure to somewhat higher temperatures may be acceptable, but long-term operation much above this band is not recommended where strength is critical.<\/p><h3><strong>2. Effect of Aging Condition on Heat Resistance<\/strong><\/h3><p>Elevated-temperature behaviour depends strongly on the <strong>aging condition<\/strong> (H900, H1025, H1075, H1100, etc.):<\/p><ul><li><p><strong>Lower aging temperatures (e.g. H900)<\/strong><\/p><ul><li><p>Maximum room-temperature strength and hardness<\/p><\/li><li><p>More sensitive to toughness loss and overaging at elevated temperature<\/p><\/li><\/ul><\/li><li><p><strong>Intermediate aging (e.g. H1025 \/ H1075)<\/strong><\/p><ul><li><p>Slightly lower strength<\/p><\/li><li><p>Improved toughness and fatigue behaviour<\/p><\/li><li><p>Often a better compromise for parts that see both load and temperature<\/p><\/li><\/ul><\/li><li><p><strong>Higher aging temperatures (e.g. H1100 and above)<\/strong><\/p><ul><li><p>Lowest strength<\/p><\/li><li><p>Highest toughness and best stress-corrosion cracking resistance<\/p><\/li><li><p>More tolerant of moderate temperature exposure over time<\/p><\/li><\/ul><\/li><\/ul><p>In design, the <strong>continuous service temperature should be kept comfortably below the chosen aging temperature<\/strong>.<\/p><h3><strong>3. Strength and Toughness at Elevated Temperatures<\/strong><\/h3><p>As temperature rises, 15-5PH behaves like other steels:<\/p><ul><li><p><strong>Tensile and yield strength decrease<\/strong> with increasing temperature<\/p><\/li><li><p><strong>Fatigue strength<\/strong> under cyclic loading is reduced<\/p><\/li><li><p><strong>Impact toughness<\/strong> may fall, especially in the highest-strength conditions<\/p><\/li><\/ul><p>Within its recommended temperature range, however, 15-5PH still provides <strong>significantly higher strength<\/strong> than standard austenitic grades and many conventional martensitic stainless steels.<\/p><h3><strong>4. Oxidation and Surface Behaviour<\/strong><\/h3><p>With about 15% Cr, 5% Ni and additions of Cu and Nb, 15-5PH has:<\/p><ul><li><p>Better <strong>oxidation resistance<\/strong> than carbon and low-alloy steels at moderate temperatures<\/p><\/li><li><p>A stable chromium-rich oxide film in air and combustion gases within its normal service range<\/p><\/li><\/ul><p>Its oxidation behaviour is <strong>not as strong as dedicated heat-resistant austenitic or nickel alloys<\/strong> at very high temperature, so it is best used where oxidation demands are moderate rather than extreme. Smooth, clean surfaces and avoidance of heavy scaling help maintain performance.<\/p><h3><strong>5. Overaging and Property Degradation<\/strong><\/h3><p>Prolonged exposure to temperatures near or above the aging temperature can:<\/p><ul><li><p><strong>Over-age<\/strong> the precipitate structure, lowering strength and hardness<\/p><\/li><li><p>Modify the martensitic\/precipitate balance and reduce fatigue performance<\/p><\/li><li><p>Shift the strength\u2013toughness balance away from the originally specified condition<\/p><\/li><\/ul><p>For critical components, allowable stresses should take possible <strong>overaging<\/strong> into account if service temperatures approach the aging temperature for long periods.<\/p><h3><strong>6. Comparison with Other Stainless and High-Temperature Alloys<\/strong><\/h3><p>Compared with other steels:<\/p><ul><li><p>Versus <strong>conventional martensitic stainless steels (410\/420)<\/strong><\/p><ul><li><p>Much <strong>higher strength<\/strong><\/p><\/li><li><p>Better toughness and similar or better heat resistance at moderate temperatures<\/p><\/li><\/ul><\/li><li><p>Versus <strong>austenitic stainless steels (304\/316)<\/strong><\/p><ul><li><p>Much <strong>higher room-temperature strength<\/strong><\/p><\/li><li><p>Lower suitability for long-term, very high-temperature or creep-limited service<\/p><\/li><\/ul><\/li><li><p>Versus <strong>dedicated heat-resistant austenitic or nickel alloys<\/strong><\/p><ul><li><p>15-5PH is <strong>not<\/strong> a substitute where continuous service at very high temperature and creep\/oxidation resistance are primary requirements<\/p><\/li><\/ul><\/li><\/ul><p>It is best classed as a <strong>high-strength structural stainless steel with good moderate-temperature capability<\/strong>, not as a primary high-temperature alloy.<\/p><h3><strong>Summary<\/strong><\/h3><p>15-5PH stainless steel provides reliable heat resistance for structural and mechanical components operating at <strong>moderate temperatures (typically up to about 300\u2013315\u00b0C \/ 570\u2013600\u00b0F)<\/strong>, retaining high strength and useful toughness with acceptable oxidation behaviour; however, prolonged exposure near or above its aging temperature leads to overaging and strength loss, so it should be used as a high-strength stainless steel with limited high-temperature capability rather than a dedicated creep- or scale-resistant alloy.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2544\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"5\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2544\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Machinability <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" role=\"region\" aria-labelledby=\"e-n-accordion-item-2544\" class=\"elementor-element elementor-element-efea2ba e-flex e-con-boxed e-con e-child\" data-id=\"efea2ba\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4f48683 elementor-widget elementor-widget-text-editor\" data-id=\"4f48683\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2><strong>Machinability of 15-5PH Stainless Steel<\/strong><\/h2><p>15-5PH stainless steel (UNS S15500, 1.4545) is a high-strength precipitation-hardening martensitic stainless steel with <strong>moderate machinability<\/strong>. It is generally more difficult to machine than 304\/316, but easier than many tool steels when machined in the correct condition with suitable tooling and parameters.<\/p><h3><strong>1. General Machining Behaviour<\/strong><\/h3><p>15-5PH machines similarly to other PH martensitic stainless steels (e.g. 17-4PH).<br \/>It does not work harden as aggressively as austenitic grades, but its higher base strength means <strong>higher cutting forces and faster tool wear<\/strong>.<br \/>Machining should be planned as part of a route that uses the <strong>solution-treated or softer aged condition for roughing<\/strong>, and reserves high-strength conditions mainly for service, not heavy machining.<\/p><h3><strong>2. Preferred Conditions for Machining<\/strong><\/h3><p>Best machinability is achieved in the <strong>solution-treated (annealed) condition<\/strong> or in a <strong>relatively soft aging condition<\/strong> (e.g. higher aging temperature such as H1100).<br \/>Typical route:<\/p><ul><li><p>Solution treatment \u2192 rough machining \u2192 aging to required condition (H900, H1025, H1100, etc.) \u2192 light finishing or grinding.<br \/>Machining directly in the highest-strength condition (e.g. H900) should be limited to <strong>light finishing passes<\/strong>, because cutting forces and tool wear are significantly higher.<\/p><\/li><\/ul><h3><strong>3. Tooling and Cutting Parameters<\/strong><\/h3><p>Carbide tooling is recommended for most turning, milling and drilling operations.<br \/>Good practice includes:<\/p><ul><li><p>Using insert grades designed for <strong>stainless \/ PH steels<\/strong>.<\/p><\/li><li><p>Applying <strong>moderate cutting speeds<\/strong> with sufficient feed to avoid rubbing.<\/p><\/li><li><p>Using <strong>positive rake, rigid toolholders and stiff setups<\/strong> to minimise chatter and edge chipping.<\/p><\/li><li><p>Avoiding very light \u201cpolishing\u201d cuts that only generate heat and accelerate tool wear.<\/p><\/li><\/ul><p>For small-batch or manual work, high-quality HSS or cobalt HSS tools can be used at appropriately reduced speeds.<\/p><h3><strong>4. Coolant Use and Chip Control<\/strong><\/h3><p>Effective coolant and chip management are important for tool life and surface quality:<\/p><ul><li><p>Use <strong>plenty of cutting fluid or coolant<\/strong> to control temperature, improve surface finish and reduce built-up edge.<\/p><\/li><li><p>In milling and drilling, ensure coolant reaches the cutting zone, especially for deep holes.<\/p><\/li><li><p>15-5PH can produce relatively tough, continuous chips; use <strong>chip-breaker inserts<\/strong> and adjust feed and depth of cut to promote chip breaking.<\/p><\/li><\/ul><p>Good chip control reduces the risk of surface damage, improves reliability of automatic operations and helps maintain dimensional accuracy.<\/p><h3><strong>5. Drilling, Tapping and Threading<\/strong><\/h3><p>For drilling operations:<\/p><ul><li><p>Use <strong>carbide or cobalt HSS drills<\/strong> with steady feed and appropriate point geometry.<\/p><\/li><li><p>Apply <strong>peck cycles<\/strong> for deep holes to clear chips and maintain cooling.<\/p><\/li><\/ul><p>For tapping and threading:<\/p><ul><li><p>Use strong, premium taps with <strong>abundant lubrication<\/strong> in higher-strength conditions.<\/p><\/li><li><p>Where possible, consider <strong>thread milling<\/strong> for critical or large threads to reduce risk of tap breakage and to better control thread fit.<\/p><\/li><li><p>Allow for some elastic recovery (spring-back) due to high strength when setting thread and bore tolerances.<\/p><\/li><\/ul><h3><strong>6. Surface Finish, Distortion and Dimensional Control<\/strong><\/h3><p>15-5PH can be finished to <strong>very high surface quality<\/strong> by turning, grinding and polishing, which is important for:<\/p><ul><li><p>Shafts and bearing seats<\/p><\/li><li><p>Valve stems and sealing surfaces<\/p><\/li><li><p>Precision mechanical components and fits<\/p><\/li><\/ul><p>To maintain dimensional control:<\/p><ul><li><p>Use a route such as <strong>rough machining \u2192 aging \u2192 finish machining \/ grinding<\/strong> with light cuts.<\/p><\/li><li><p>Avoid overheating during machining or grinding to prevent local tempering, microcracking or unwanted residual tensile stresses.<\/p><\/li><li><p>Use balanced machining and rigid fixturing, especially for long or slender parts, to minimise distortion when the material is aged to high strength.<\/p><\/li><\/ul><h3><strong>Summary<\/strong><\/h3><p>The machinability of 15-5PH stainless steel is moderate: it machines best in the solution-treated or softer aged conditions using rigid setups, carbide tooling, conservative speeds with adequate feed, effective coolant and good chip control, followed by light finishing or grinding after aging to achieve accurate dimensions and high-quality surfaces on high-strength shafts, gears, fasteners, valve components and other precision parts.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2545\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"6\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2545\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Corrosion Resistance <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" role=\"region\" aria-labelledby=\"e-n-accordion-item-2545\" class=\"elementor-element elementor-element-9ed5927 e-flex e-con-boxed e-con e-child\" data-id=\"9ed5927\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-87c5c0a elementor-widget elementor-widget-text-editor\" data-id=\"87c5c0a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2><strong>Corrosion Resistance of 15-5PH Stainless Steel<\/strong><\/h2><p>15-5PH stainless steel (UNS S15500, 1.4545) offers <strong>good corrosion resistance for a high-strength martensitic precipitation-hardening stainless steel<\/strong>, broadly similar to 17-4PH and clearly better than conventional martensitic grades such as 410 \/ 420, though generally below 316 in very aggressive chloride or chemical environments.<\/p><h3><strong>1. General Corrosion Behaviour<\/strong><\/h3><ul><li><p>Designed to combine <strong>high strength and stainless corrosion resistance<\/strong> in one alloy.<\/p><\/li><li><p>Performs well in many <strong>atmospheric, fresh-water and mildly corrosive industrial environments<\/strong>.<\/p><\/li><li><p>Compared with carbon and low-alloy steels, 15-5PH shows <strong>much lower rusting and staining<\/strong> under the same conditions.<\/p><\/li><\/ul><h3><strong>2. Atmospheric and Fresh-Water Environments<\/strong><\/h3><ul><li><p>Good resistance to rusting and discoloration in <strong>rural, urban and light industrial atmospheres<\/strong>.<\/p><\/li><li><p>Suitable for <strong>fresh water, cooling water and many industrial waters<\/strong> with moderate chloride levels.<\/p><\/li><li><p>Commonly used for <strong>shafts, fasteners, valve\/pump parts and structural hardware<\/strong> exposed to humidity, splash, wash-down and condensation.<\/p><\/li><\/ul><h3><strong>3. Marine and Chloride-Containing Service<\/strong><\/h3><ul><li><p>In marine atmospheres and splash zones, 15-5PH performs <strong>better than carbon steel and standard martensitic stainless<\/strong>.<\/p><\/li><li><p>However, its pitting\/crevice corrosion resistance in chlorides is <strong>roughly comparable to 17-4PH and generally below molybdenum-bearing austenitic grades<\/strong> such as 316.<\/p><\/li><li><p>For <strong>continuous immersion in seawater<\/strong>, hot concentrated brines or stagnant chloride crevices, more highly alloyed austenitic or duplex stainless steels are usually preferred.<\/p><\/li><\/ul><h3><strong>4. Behaviour in Chemical and Process Environments<\/strong><\/h3><ul><li><p>Suitable for many <strong>mild to moderately corrosive chemical media<\/strong>, including:<\/p><ul><li><p>Light acids and alkalis at controlled concentration and temperature<\/p><\/li><li><p>Fuels, oils and many organic fluids<\/p><\/li><li><p>Process plant environments where both <strong>strength and moderate corrosion resistance<\/strong> are required<\/p><\/li><\/ul><\/li><li><p>Not recommended for:<\/p><ul><li><p>Strong mineral acids or strong reducing acid environments<\/p><\/li><li><p>Hot, concentrated chloride solutions<\/p><\/li><li><p>Service where <strong>maximum pitting\/crevice or acid resistance<\/strong> is required (nickel alloys or highly alloyed stainless grades are more appropriate).<\/p><\/li><\/ul><\/li><\/ul><h3><strong>5. Stress-Corrosion Cracking and Hydrogen Effects<\/strong><\/h3><ul><li><p>As a <strong>high-strength precipitation-hardening steel<\/strong>, 15-5PH is more sensitive to <strong>chloride stress-corrosion cracking (SCC)<\/strong> than low-strength austenitic grades.<\/p><\/li><li><p>SCC risk increases with:<\/p><ul><li><p>High tensile stress (residual + applied)<\/p><\/li><li><p>Elevated temperature<\/p><\/li><li><p>Chloride-bearing environments<\/p><\/li><\/ul><\/li><li><p>Processes that introduce hydrogen (e.g. <strong>acid pickling, electroplating, excessive cathodic protection<\/strong>) can promote hydrogen embrittlement if not properly controlled.<\/p><\/li><li><p>Good practice: limit unnecessary high-strength conditions in severe environments, control residual stress, and manage any hydrogen-charging operations carefully.<\/p><\/li><\/ul><h3><strong>6. Influence of Heat Treatment and Microstructure<\/strong><\/h3><ul><li><p>Corrosion performance is closely tied to the <strong>solution treatment + aging condition<\/strong>:<\/p><ul><li><p>Proper solution treatment and standard aging give a <strong>uniform martensitic + precipitate structure<\/strong> with consistent behaviour.<\/p><\/li><li><p>Very low-temperature, maximum-strength aging conditions may slightly increase susceptibility to SCC compared with softer conditions that provide higher toughness.<\/p><\/li><\/ul><\/li><li><p>Non-standard or badly controlled heat treatments (overaging, mixed structures, local overheating) can <strong>reduce both toughness and corrosion performance<\/strong>, especially near welds or heavily worked areas.<\/p><\/li><\/ul><h3><strong>7. Surface Finish, Cleanliness and Design<\/strong><\/h3><ul><li><p>As with all stainless steels, <strong>surface condition strongly affects corrosion resistance<\/strong>:<\/p><ul><li><p>Smooth, ground or polished surfaces resist pitting and crevice attack better than rough, damaged or heavily machined surfaces.<\/p><\/li><li><p>Weld heat tint, scale, slag and embedded iron should be removed by <strong>pickling, grinding or blasting<\/strong> and followed by proper cleaning\/passivation.<\/p><\/li><\/ul><\/li><li><p>Good design reduces corrosion risk by:<\/p><ul><li><p>Avoiding tight <strong>crevices, stagnant pockets and water traps<\/strong><\/p><\/li><li><p>Providing smooth weld profiles and transitions<\/p><\/li><li><p>Ensuring drainage and ease of cleaning in service<\/p><\/li><\/ul><\/li><\/ul><h3><strong>Summary<\/strong><\/h3><p>15-5PH stainless steel provides <strong>good general corrosion resistance and clearly superior performance to conventional martensitic steels<\/strong>, with behaviour broadly comparable to 17-4PH: it works well in atmospheric, fresh-water and many industrial environments, and in moderate marine or chemical service, but does not match the chloride or acid resistance of highly alloyed austenitic or duplex stainless steels, so it is best used where a <strong>high-strength, moderately corrosion-resistant structural alloy<\/strong> is required rather than as a primary material for the most aggressive corrosive conditions.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2546\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"7\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2546\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Heat Treatment <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" role=\"region\" aria-labelledby=\"e-n-accordion-item-2546\" class=\"elementor-element elementor-element-c866eba e-flex e-con-boxed e-con e-child\" data-id=\"c866eba\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d63b0d3 elementor-widget elementor-widget-text-editor\" data-id=\"d63b0d3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2><strong>Heat Treatment of 15-5PH Stainless Steel<\/strong><\/h2><p>15-5PH stainless steel (UNS S15500, 1.4545) is a precipitation-hardening martensitic stainless steel. Its final mechanical properties are controlled almost entirely by the <strong>solution treatment + aging (\u201cH\u201d) condition<\/strong>, so the heat-treat schedule is a core part of component design and fabrication.<\/p><h3><strong>1. Objectives of Heat Treatment<\/strong><\/h3><ul><li><p>Produce a <strong>uniform martensitic structure<\/strong> suitable for precipitation hardening<\/p><\/li><li><p>Develop <strong>high tensile and yield strength<\/strong> with controlled hardness<\/p><\/li><li><p>Adjust <strong>toughness, fatigue performance and stress-corrosion behaviour<\/strong> via aging temperature<\/p><\/li><li><p>Minimise <strong>residual stress and distortion<\/strong> from forging, machining and welding<\/p><\/li><\/ul><h3><strong>2. Solution Treatment (Austenitizing \/ Annealing)<\/strong><\/h3><p>Purpose:<\/p><ul><li><p>Dissolve alloying elements into austenite<\/p><\/li><li><p>Homogenise the structure before martensitic transformation and aging<\/p><\/li><\/ul><p>Typical practice (exact temperature\/time must follow the applicable spec, e.g. AMS 5659):<\/p><ul><li><p>Heat into the <strong>austenitizing range<\/strong> (high temperature, around the 15-5PH solution-treat band)<\/p><\/li><li><p>Hold long enough for <strong>through-heating<\/strong> of the section<\/p><\/li><li><p>Cool rapidly (usually <strong>air cool<\/strong>, sometimes oil\/quench-gas depending on section and spec) to form a <strong>martensitic matrix<\/strong><\/p><\/li><\/ul><p>After solution treatment, 15-5PH is:<\/p><ul><li><p>At <strong>moderate strength and hardness<\/strong><\/p><\/li><li><p>Reasonably <strong>machinable<\/strong> for roughing<\/p><\/li><li><p>Ready for welding, straightening and subsequent aging<\/p><\/li><\/ul><h3><strong>3. Aging \/ Precipitation-Hardening Conditions<\/strong><\/h3><p>After solution treatment, 15-5PH is aged to develop final properties. Common \u201cH\u201d conditions include, for example:<\/p><ul><li><p><strong>H900<\/strong> \u2013 low aging temperature, maximum strength and hardness<\/p><\/li><li><p><strong>H1025 \/ H1075<\/strong> \u2013 intermediate strength with improved toughness<\/p><\/li><li><p><strong>H1100<\/strong> (and higher) \u2013 lower strength, maximum toughness and better stress-corrosion performance<\/p><\/li><\/ul><p>General procedure:<\/p><ul><li><p>Reheat to the specified <strong>aging temperature<\/strong><\/p><\/li><li><p>Hold for the specified <strong>time<\/strong> (typically a few hours)<\/p><\/li><li><p>Cool in <strong>still air<\/strong><\/p><\/li><\/ul><p>During aging, fine <strong>copper-rich precipitates and carbides<\/strong> form in the martensitic matrix, greatly increasing yield\/tensile strength and tuning toughness.<\/p><h3><strong>4. Effect of Aging Temperature on Properties<\/strong><\/h3><ul><li><p><strong>Low-temperature aging (H900)<\/strong><\/p><ul><li><p>Very high yield and tensile strength<\/p><\/li><li><p>High hardness<\/p><\/li><li><p>Lower but still useful toughness and damage tolerance<\/p><\/li><\/ul><\/li><li><p><strong>Intermediate aging (H1025 \/ H1075)<\/strong><\/p><ul><li><p>Slightly reduced strength and hardness<\/p><\/li><li><p>Better toughness and fatigue performance<\/p><\/li><li><p>Often chosen for <strong>high-integrity structural and landing-gear parts<\/strong><\/p><\/li><\/ul><\/li><li><p><strong>High-temperature aging (H1100 and above)<\/strong><\/p><ul><li><p>Further reduction in strength<\/p><\/li><li><p><strong>Maximum toughness<\/strong> and best stress-corrosion cracking resistance<\/p><\/li><li><p>Used where environment and damage tolerance dominate over peak strength<\/p><\/li><\/ul><\/li><\/ul><p>The designer selects the condition according to the required <strong>strength\u2013toughness\u2013environment<\/strong> balance.<\/p><h3><strong>5. Stress Relief and Post-Weld Heat Treatment<\/strong><\/h3><ul><li><p><strong>Stress relief<\/strong><\/p><ul><li><p>May be applied after heavy machining, straightening or forming<\/p><\/li><li><p>For corrosion-critical parts, a full <strong>solution + aging<\/strong> schedule is usually preferred over low-temperature stress relief alone<\/p><\/li><\/ul><\/li><li><p><strong>Post-weld heat treatment (PWHT)<\/strong><\/p><ul><li><p>Welding is normally done in the <strong>solution-treated condition<\/strong><\/p><\/li><li><p>After welding, the entire assembly is <strong>aged to the specified \u201cH\u201d condition<\/strong><\/p><\/li><li><p>PWHT\/aging:<\/p><ul><li><p>Restores high strength in weld metal and HAZ<\/p><\/li><li><p>Helps equalise hardness and microstructure across the joint<\/p><\/li><li><p>Reduces residual stresses from welding<\/p><\/li><\/ul><\/li><\/ul><\/li><\/ul><p>Some critical specifications may call for <strong>re-solution + aging<\/strong> after welding; others allow direct aging from the as-welded solution-treated state.<\/p><h3><strong>6. Typical Production Heat-Treatment Sequences<\/strong><\/h3><p>Common practical routes are:<\/p><ul><li><p><strong>Forged parts \/ large sections<\/strong><\/p><ul><li><p>Forge \/ hot work<\/p><\/li><li><p>Air cool<\/p><\/li><li><p>Solution treat<\/p><\/li><li><p>Rough machining<\/p><\/li><li><p>Age (H900 \/ H1025 \/ H1100 etc.)<\/p><\/li><li><p>Finish machining \/ grinding<\/p><\/li><\/ul><\/li><li><p><strong>Welded fabrications<\/strong><\/p><ul><li><p>Solution-treated material<\/p><\/li><li><p>Weld with approved procedure<\/p><\/li><li><p>Age entire assembly to required condition<\/p><\/li><li><p>Final machining, sizing and surface finishing<\/p><\/li><\/ul><\/li><li><p><strong>Precision high-tolerance components<\/strong><\/p><ul><li><p>Solution treat<\/p><\/li><li><p>Rough machine<\/p><\/li><li><p>Age to final condition<\/p><\/li><li><p>Light finish machining \/ grinding to final size and surface finish<\/p><\/li><\/ul><\/li><\/ul><h3><strong>7. Precautions During Heat Treatment<\/strong><\/h3><ul><li><p>Avoid <strong>overheating<\/strong> during solution treatment to prevent grain coarsening and toughness loss<\/p><\/li><li><p>Ensure <strong>accurate furnace control<\/strong> and adequate soak time for heavy sections<\/p><\/li><li><p>Do not exceed specification limits on the <strong>number of solution\/aging cycles<\/strong><\/p><\/li><li><p>Support and fixture long or thin parts carefully during heating and cooling to minimise <strong>distortion<\/strong><\/p><\/li><\/ul><h3><strong>Summary<\/strong><\/h3><p>Heat treatment of 15-5PH stainless steel is based on <strong>solution treatment to form a martensitic matrix<\/strong>, followed by <strong>controlled aging (H900, H1025, H1075, H1100, etc.)<\/strong> to tune strength, hardness, toughness and stress-corrosion behaviour; by integrating welding, stress relief and machining with this solution-plus-aging schedule, engineers can produce high-strength, dimensionally stable components with properties matched to demanding aerospace and high-integrity mechanical applications.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2547\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"8\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2547\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Cold Working <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" role=\"region\" aria-labelledby=\"e-n-accordion-item-2547\" class=\"elementor-element elementor-element-5e1fde8 e-flex e-con-boxed e-con e-child\" data-id=\"5e1fde8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1e70772 elementor-widget elementor-widget-text-editor\" data-id=\"1e70772\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2><strong>Cold Working of 15-5PH Stainless Steel<\/strong><\/h2><p>15-5PH stainless steel (UNS S15500, 1.4545) is a high-strength precipitation-hardening martensitic stainless steel with <strong>limited cold workability<\/strong> compared with austenitic grades such as 304\/316. Cold working is possible but should be kept to light or moderate deformation and always coordinated with the heat-treatment and aging schedule.<\/p><h3><strong>1. General Cold Workability<\/strong><\/h3><p>15-5PH has lower ductility than austenitic stainless steels, especially in high-strength aged conditions (e.g. H900).<br \/>It can tolerate <strong>modest cold deformation<\/strong> for straightening, sizing and minor shape adjustment.<br \/>Heavy cold forming, tight-radius bending or deep drawing are generally <strong>not recommended<\/strong>, particularly on thick or fully hardened sections.<\/p><h3><strong>2. Preferred Condition for Cold Working<\/strong><\/h3><p>Cold working should primarily be carried out in the:<\/p><ul><li><p><strong>Solution-treated (annealed) condition<\/strong>, or<\/p><\/li><li><p>A <strong>softer, higher-temperature aged condition<\/strong> (e.g. H1100), where ductility is better.<\/p><\/li><\/ul><p>In these states, the risk of cracking and excessive work hardening is reduced.<br \/>In <strong>maximum-strength conditions (H900, H1025)<\/strong>, cold work should be restricted to very small corrections only (slight straightening, minor tweaking).<\/p><h3><strong>3. Typical Cold Working Operations<\/strong><\/h3><p>Suitable cold-working operations for 15-5PH include:<\/p><ul><li><p>Straightening of bars, shafts and pins after heat treatment or machining<\/p><\/li><li><p>Light bending with generous radii on plates, flats or bars<\/p><\/li><li><p>Cold sizing, light swaging or small diameter reductions where total strain is limited<\/p><\/li><\/ul><p>Generally unsuitable (except perhaps in very thin sections) are:<\/p><ul><li><p>Severe cold heading with large upset ratios<\/p><\/li><li><p>Tight-radius bending of thick sections<\/p><\/li><li><p>Complex deep drawing or heavy press-forming operations<\/p><\/li><\/ul><h3><strong>4. Effects on Mechanical Properties and Residual Stresses<\/strong><\/h3><p>Cold work in 15-5PH:<\/p><ul><li><p>Increases <strong>local strength and hardness<\/strong><\/p><\/li><li><p>Reduces <strong>ductility and toughness<\/strong> in heavily strained regions<\/p><\/li><li><p>Introduces <strong>residual stresses<\/strong>, which can affect:<\/p><ul><li><p>Fatigue performance<\/p><\/li><li><p>Dimensional stability<\/p><\/li><li><p>Stress-corrosion cracking behaviour<\/p><\/li><\/ul><\/li><\/ul><p>Because 15-5PH already relies on a controlled precipitation-hardened martensitic structure, uncontrolled or heavy cold deformation can make properties <strong>non-uniform through the section<\/strong>.<\/p><h3><strong>5. Stress Relief and Heat Treatment After Cold Work<\/strong><\/h3><p>After significant cold deformation, some form of heat treatment is usually advisable:<\/p><ul><li><p>For major cold work, best practice is often:<br \/><strong>Cold form \u2192 solution treat \u2192 age to final condition<\/strong><br \/>to restore a uniform microstructure and consistent properties.<\/p><\/li><li><p>For moderate adjustments in an already aged condition, a <strong>low-temperature stress-relief treatment<\/strong> may help reduce residual stresses without fully resetting strength, if allowed by specification.<\/p><\/li><\/ul><p>Critical, highly loaded components should not rely on heavily cold-worked, unrelieved material in service.<\/p><h3><strong>6. Design and Process Recommendations<\/strong><\/h3><p>To use cold working safely and effectively on 15-5PH:<\/p><ul><li><p>Plan for <strong>most forming operations to occur before final aging<\/strong>.<\/p><\/li><li><p>Use <strong>large bend radii<\/strong> and gradual transitions to reduce local strain and avoid cracking.<\/p><\/li><li><p>Avoid sharp corners, notches and abrupt section changes in areas that will be cold worked.<\/p><\/li><li><p>For tight tolerances and critical parts, a typical route is:<br \/><strong>Rough shaping \/ light cold work \u2192 solution treatment \u2192 aging \u2192 finish machining \/ grinding<\/strong>.<\/p><\/li><\/ul><h3><strong>Summary<\/strong><\/h3><p>Cold working of 15-5PH stainless steel should be limited to <strong>light to moderate operations<\/strong> such as straightening, sizing and gentle bending, carried out mainly in the solution-treated or softer aged conditions; heavier deformation can harm toughness and introduce detrimental residual stresses, so any significant cold work should be followed by appropriate stress relief or full solution treatment and aging to recover a uniform, reliable high-strength microstructure for demanding aerospace and high-integrity mechanical applications.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2548\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"9\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2548\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Precipitation Hardening Steels <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" role=\"region\" aria-labelledby=\"e-n-accordion-item-2548\" class=\"elementor-element elementor-element-5af11d6 e-flex e-con-boxed e-con e-child\" data-id=\"5af11d6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f93c1a6 elementor-widget elementor-widget-text-editor\" data-id=\"f93c1a6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2><strong>15-5PH Stainless Steel Precipitation Hardening Steels<\/strong><\/h2><p>15-5PH (UNS S15500, 1.4545) is a <strong>martensitic precipitation hardening (PH) stainless steel<\/strong>. Like other PH grades (e.g. 17-4PH, 13-8PH), it gains its high strength from <strong>solution treatment followed by controlled aging<\/strong>, which precipitates fine copper-rich and other particles in a martensitic matrix.<\/p><hr \/><h3><strong>1. 15-5PH in the PH Stainless Steel Family<\/strong><\/h3><ul><li><p>Belongs to the <strong>martensitic PH stainless steel<\/strong> group (Cu-bearing, Cr-Ni steels).<\/p><\/li><li><p>Offers a balance of:<\/p><ul><li><p><strong>High tensile and yield strength<\/strong><\/p><\/li><li><p><strong>Good toughness<\/strong> (better than 17-4PH in many cases)<\/p><\/li><li><p><strong>Useful corrosion resistance<\/strong> comparable to or slightly better than 17-4PH in many environments.<\/p><\/li><\/ul><\/li><li><p>Used alongside other PH grades such as <strong>17-4PH (630)<\/strong>, <strong>13-8PH<\/strong> and <strong>15-7PH<\/strong> where high strength plus stainless behaviour are required.<\/p><\/li><\/ul><hr \/><h3><strong>2. Precipitation Hardening Mechanism<\/strong><\/h3><ul><li><p>Supplied typically in <strong>Condition A (solution-treated)<\/strong>:<\/p><ul><li><p>Austenitized at high temperature, then cooled to form a <strong>martensitic matrix<\/strong>.<\/p><\/li><\/ul><\/li><li><p>Final properties are developed by <strong>aging (precipitation hardening)<\/strong>:<\/p><ul><li><p>Reheating to a moderate temperature (\u201cH\u201d condition).<\/p><\/li><li><p>Fine <strong>Cu-rich and other precipitates<\/strong> form within martensite.<\/p><\/li><li><p>These precipitates block dislocation motion, greatly increasing <strong>strength and hardness<\/strong>.<\/p><\/li><\/ul><\/li><li><p>By varying the aging temperature\/time, 15-5PH can be tuned from <strong>very high strength<\/strong> to <strong>higher toughness and better stress-corrosion performance<\/strong>.<\/p><\/li><\/ul><hr \/><h3><strong>3. Typical Aging Conditions for 15-5PH<\/strong><\/h3><p><em>(Conceptual groupings \u2013 exact temperatures\/times depend on the applicable standard\/specification.)<\/em><\/p><ul><li><p><strong>High-Strength Conditions (H900 \/ similar low-temperature ages)<\/strong><\/p><ul><li><p>Low aging temperature \u2192 <strong>maximum tensile\/yield strength and hardness<\/strong>.<\/p><\/li><li><p>Lower toughness and damage tolerance; used where peak strength is critical.<\/p><\/li><\/ul><\/li><li><p><strong>Balanced Strength\u2013Toughness Conditions (e.g. H1025 \/ H1075 range)<\/strong><\/p><ul><li><p>Intermediate aging temperatures \u2192 <strong>high strength with improved toughness and fatigue performance<\/strong>.<\/p><\/li><li><p>Common for <strong>rotating\/structural components, shafts, fasteners and aerospace parts<\/strong>.<\/p><\/li><\/ul><\/li><li><p><strong>High-Toughness \/ SCC-Resistant Conditions (H1100 \/ H1150 and modified double ages)<\/strong><\/p><ul><li><p>Higher aging temperatures (or double aging) \u2192<\/p><ul><li><p>Reduced strength<\/p><\/li><li><p><strong>Maximum toughness, better stress-corrosion and environmental resistance<\/strong><\/p><\/li><\/ul><\/li><li><p>Used for thicker sections and <strong>critical components in corrosive or SCC-sensitive service<\/strong>.<\/p><\/li><\/ul><\/li><\/ul><hr \/><h3><strong>4. Advantages of 15-5PH vs Other PH Steels<\/strong><\/h3><ul><li><p>Compared with 17-4PH (630):<\/p><ul><li><p>Similar aging concept and strength range.<\/p><\/li><li><p>Often <strong>better transverse toughness and notch toughness<\/strong>, especially in large sections or heavy forgings.<\/p><\/li><\/ul><\/li><li><p>Compared with conventional quenched-and-tempered alloy steels:<\/p><ul><li><p>Combines <strong>high strength<\/strong> with <strong>stainless corrosion resistance<\/strong>, reducing or eliminating the need for heavy coatings.<\/p><\/li><\/ul><\/li><\/ul><hr \/><h3><strong>Summary<\/strong><\/h3><p>15-5PH stainless steel is a <strong>martensitic precipitation hardening stainless<\/strong> within the PH steels family, strengthened by solution treatment followed by aging to H-conditions (H900\u2013H1150 etc.); by choosing appropriate aging temperatures, engineers can tune 15-5PH from very high strength to high-toughness, corrosion-resistant conditions, making it a versatile PH stainless for aerospace, mechanical and structural components.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Stainless Steel, Precipitation Hardening S15500 Stainless Steel (15-5PH) Bar A martensitic precipitation hardening chromium-nickel-copper stainless steel. 15-5 stainless steel is a martensitic precipitation-hardening stainless steel with approximately 15% chromium and 5% nickel. It has high strength, high hardness, and excellent corrosion resistance. Strength can be further increased by a single low temperature heat treatment. Compared [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3915,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-3911","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-high-performance-stainless-steels"],"_links":{"self":[{"href":"https:\/\/zhss.org\/fr\/wp-json\/wp\/v2\/posts\/3911","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zhss.org\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zhss.org\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zhss.org\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zhss.org\/fr\/wp-json\/wp\/v2\/comments?post=3911"}],"version-history":[{"count":0,"href":"https:\/\/zhss.org\/fr\/wp-json\/wp\/v2\/posts\/3911\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zhss.org\/fr\/wp-json\/wp\/v2\/media\/3915"}],"wp:attachment":[{"href":"https:\/\/zhss.org\/fr\/wp-json\/wp\/v2\/media?parent=3911"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zhss.org\/fr\/wp-json\/wp\/v2\/categories?post=3911"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zhss.org\/fr\/wp-json\/wp\/v2\/tags?post=3911"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}