{"id":2558,"date":"2025-11-14T05:48:55","date_gmt":"2025-11-14T05:48:55","guid":{"rendered":"https:\/\/zhss.org\/?p=2558"},"modified":"2025-12-17T11:27:54","modified_gmt":"2025-12-17T03:27:54","slug":"431-stainless-steel-s43100-bar","status":"publish","type":"post","link":"https:\/\/zhss.org\/ja\/metals\/stainless-steel\/commercial-stainless-steel-alloys\/431-stainless-steel-s43100-bar\/","title":{"rendered":"431 Stainless Steel (S43100) Bar"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2558\" class=\"elementor elementor-2558\" 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-17a9dbf e-flex e-con-boxed e-con e-parent\" data-id=\"17a9dbf\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-fec24ef e-con-full e-flex e-con e-child\" data-id=\"fec24ef\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-41de3ab elementor-widget elementor-widget-heading\" data-id=\"41de3ab\" 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, Martensitic\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ae95d42 elementor-widget elementor-widget-heading\" data-id=\"ae95d42\" 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\">431 Stainless Steel  (S43100) Bar\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9f9e4ae elementor-widget elementor-widget-heading\" data-id=\"9f9e4ae\" 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 high chromium, low nickel high hardenability martensitic stainless steel.\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b8643b1 elementor-widget elementor-widget-text-editor\" data-id=\"b8643b1\" 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\/commercial-stainless-steel-alloys\/431-stainless-steel-s43100-bar\/\">431 stainless steel<\/a> is a martensitic precipitation-hardening stainless steel known for its high strength, good corrosion resistance, and excellent mechanical properties. It is a versatile alloy widely used in applications requiring a combination of strength, toughness, and moderate corrosion resistance.<\/p><p><a href=\"https:\/\/zhss.org\/metals\/stainless-steel\/commercial-stainless-steel-alloys\/431-stainless-steel-s43100-bar\/\">1.4057 (Type 431)<\/a> is a hardenable martensitic stainless steel alloy which combines high tensile strength and torsional strength. The material is well suited to shaft manufacture due to these characteristics.<\/p><p>Of all the stainless steels, 1.4057 it has one of the best combinations of high strength, corrosion resistance, and good impact toughness.<\/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-c9fec3d e-grid e-con-full e-con e-child\" data-id=\"c9fec3d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2a8788b elementor-widget elementor-widget-button\" data-id=\"2a8788b\" 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-3a2595b elementor-position-inline-start elementor-mobile-position-inline-start elementor-view-default elementor-widget elementor-widget-icon-box\" data-id=\"3a2595b\" 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-72abd6c elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"72abd6c\" 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-6cf33a4 elementor-widget elementor-widget-heading\" data-id=\"6cf33a4\" 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-c3a3043 elementor-widget elementor-widget-shortcode\" data-id=\"c3a3043\" 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-95\"\n           style=\"border-collapse:collapse;\n                   border-spacing:0px;\"\n           class=\"wpdtSimpleTable wpDataTable\"\n           data-column=\"4\"\n           data-rows=\"3\"\n           data-wpID=\"95\"\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                                        Product Form                    <\/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                                        Condition                    <\/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 Sizes                    <\/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                                        Metric Sizes                    <\/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                                        Round Bar                    <\/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                                        QT800                    <\/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                                        1\u20448\" - 6\"                    <\/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                                        4.0mm - 30.0mm                    <\/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                                        Round Bar                    <\/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                                        Condition P                    <\/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                                        1\u20448\" - 6\"                    <\/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                                        4.0mm - 30.0mm                    <\/td>\n                                        <\/tr>\n                    <\/table>\n<\/div><style id='wpdt-custom-style-95'>\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 class=\"elementor-element elementor-element-3b18a4a elementor-widget elementor-widget-text-editor\" data-id=\"3b18a4a\" 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-24ab144 elementor-widget elementor-widget-heading\" data-id=\"24ab144\" 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\">431 Stainless Steel  Related Specifications\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e3882e1 elementor-widget elementor-widget-shortcode\" data-id=\"e3882e1\" 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-192\"\n           style=\"border-collapse:collapse;\n                   border-spacing:0px;\"\n           class=\"wpdtSimpleTable wpDataTable\"\n           data-column=\"3\"\n           data-rows=\"11\"\n           data-wpID=\"192\"\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-FF1100 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-FF1100 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-FF1100 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                                        AISI                    <\/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                                        USA                    <\/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                                        431                    <\/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                                        UNS                    <\/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                                        S43100                    <\/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                                        EN \/ W.Nr.                    <\/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                                        Europe                    <\/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                                        1.4057                    <\/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 Name                    <\/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                                        X17CrNi16-2                    <\/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                                        ASTM A276                    <\/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                                        USA                    <\/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                                        431 (bars, shapes)                    <\/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 A182                    <\/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                                        F431 (forgings, flanges, fittings)                    <\/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 A314                    <\/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                                        431 (forged\/rolled bars for piping)                    <\/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                                        GB                    <\/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                                        China                    <\/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                                        1Cr17Ni2                    <\/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                                        JIS                    <\/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                                        Japan                    <\/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                                        SUS431                    <\/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                                        BS                    <\/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                                        UK                    <\/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                                        431S29                    <\/td>\n                                        <\/tr>\n                    <\/table>\n<\/div><style id='wpdt-custom-style-192'>\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-FF1100 { background-color: #FF1100 !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-d24ef14 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"d24ef14\" 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-ef01d65 elementor-widget elementor-widget-heading\" data-id=\"ef01d65\" 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-d8e3901 elementor-widget elementor-widget-n-accordion\" data-id=\"d8e3901\" 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-2270\" 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-2270\" >\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-2270\" class=\"elementor-element elementor-element-0407106 e-con-full e-flex e-con e-child\" data-id=\"0407106\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-722a74b elementor-widget elementor-widget-shortcode\" data-id=\"722a74b\" 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-96\"\n           style=\"border-collapse:collapse;\n                   border-spacing:0px;\"\n           class=\"wpdtSimpleTable wpDataTable\"\n           data-column=\"2\"\n           data-rows=\"8\"\n           data-wpID=\"96\"\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 - 0.20                    <\/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                                        Manganese (Mn)                    <\/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                                        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=\"A4\"\n                    data-col-index=\"0\"\n                    data-row-index=\"3\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Silicon (Si)                    <\/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                                        Phosphorous (P)                    <\/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 - 0.04                    <\/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                                        Sulphur (S)                    <\/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                                        Chromium (Cr)                    <\/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                                        15.00 - 17.00                    <\/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                                        1.25 - 2.50                    <\/td>\n                                        <\/tr>\n                    <\/table>\n<\/div><style id='wpdt-custom-style-96'>\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-2271\" 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-2271\" >\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-2271\" class=\"elementor-element elementor-element-c65e5e0 e-con-full e-flex e-con e-child\" data-id=\"c65e5e0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1125ec2 elementor-widget elementor-widget-shortcode\" data-id=\"1125ec2\" 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-97\"\n           style=\"border-collapse:collapse;\n                   border-spacing:0px;\"\n           class=\"wpdtSimpleTable wpDataTable\"\n           data-column=\"2\"\n           data-rows=\"5\"\n           data-wpID=\"97\"\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                                        Elongation A50 mm                    <\/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                                        11 %                    <\/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                                        850-1000 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                                        Proof Stress                    <\/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                                        665 MPa                    <\/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                                        248-302 HB                    <\/td>\n                                        <\/tr>\n                    <\/table>\n<\/div><style id='wpdt-custom-style-97'>\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-2272\" 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-2272\" >\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-2272\" class=\"elementor-element elementor-element-11c81d8 e-flex e-con-boxed e-con e-child\" data-id=\"11c81d8\" 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-9a2f373 elementor-widget elementor-widget-shortcode\" data-id=\"9a2f373\" 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-98\"\n           style=\"border-collapse:collapse;\n                   border-spacing:0px;\"\n           class=\"wpdtSimpleTable wpDataTable\"\n           data-column=\"2\"\n           data-rows=\"4\"\n           data-wpID=\"98\"\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                                        Physical 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                                        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                                        7.8 g\/cm\u00b3                    <\/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                    <\/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                                        200 GPa                    <\/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                                        Thermal Conductivity                    <\/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                                        20.2 W\/m.K                    <\/td>\n                                        <\/tr>\n                    <\/table>\n<\/div><style id='wpdt-custom-style-98'>\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-8b30900 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"8b30900\" 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-3c7ae25 e-grid e-con-full e-con e-child\" data-id=\"3c7ae25\" 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-1070fb4 e-con-full e-flex e-con e-child\" data-id=\"1070fb4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0922d2e elementor-widget elementor-widget-text-editor\" data-id=\"0922d2e\" 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 data-start=\"83\" data-end=\"125\"><strong data-start=\"86\" data-end=\"125\">Applications of 431 Stainless Steel<\/strong><\/h2><p data-start=\"127\" data-end=\"381\"><strong data-start=\"127\" data-end=\"150\">431 stainless steel<\/strong> is a <strong data-start=\"156\" data-end=\"187\">martensitic stainless steel<\/strong> known for its <strong data-start=\"202\" data-end=\"270\">high strength, good corrosion resistance, and excellent hardness<\/strong>. It is widely used in applications requiring <strong data-start=\"316\" data-end=\"378\">high mechanical strength and moderate corrosion resistance<\/strong>.<\/p><hr data-start=\"383\" data-end=\"386\" \/><h3 data-start=\"388\" data-end=\"434\"><strong data-start=\"392\" data-end=\"434\">1. Aerospace and Automotive Components<\/strong><\/h3><ul data-start=\"435\" data-end=\"582\"><li data-start=\"435\" data-end=\"478\"><p data-start=\"437\" data-end=\"478\">Aircraft structural parts and fasteners<\/p><\/li><li data-start=\"479\" data-end=\"536\"><p data-start=\"481\" data-end=\"536\">Automotive engine components, shafts, and valve parts<\/p><\/li><li data-start=\"537\" data-end=\"582\"><p data-start=\"539\" data-end=\"582\">High-strength springs and connecting rods<\/p><\/li><\/ul><hr data-start=\"584\" data-end=\"587\" \/><h3 data-start=\"589\" data-end=\"638\"><strong data-start=\"593\" data-end=\"638\">2. Mechanical and Industrial Applications<\/strong><\/h3><ul data-start=\"639\" data-end=\"807\"><li data-start=\"639\" data-end=\"708\"><p data-start=\"641\" data-end=\"708\">Pumps, valves, and fasteners in moderately corrosive environments<\/p><\/li><li data-start=\"709\" data-end=\"768\"><p data-start=\"711\" data-end=\"768\">Gears, bushings, and bearings requiring wear resistance<\/p><\/li><li data-start=\"769\" data-end=\"807\"><p data-start=\"771\" data-end=\"807\">Hydraulic and pneumatic components<\/p><\/li><\/ul><hr data-start=\"809\" data-end=\"812\" \/><h3 data-start=\"814\" data-end=\"861\"><strong data-start=\"818\" data-end=\"861\">3. Oil, Gas, and Petrochemical Industry<\/strong><\/h3><ul data-start=\"862\" data-end=\"1007\"><li data-start=\"862\" data-end=\"940\"><p data-start=\"864\" data-end=\"940\">Equipment and components exposed to <strong data-start=\"900\" data-end=\"938\">moderate corrosion and high stress<\/strong><\/p><\/li><li data-start=\"941\" data-end=\"1007\"><p data-start=\"943\" data-end=\"1007\">Shafts, pins, and valve stems in chemical processing equipment<\/p><\/li><\/ul><hr data-start=\"1009\" data-end=\"1012\" \/><h3 data-start=\"1014\" data-end=\"1055\"><strong data-start=\"1018\" data-end=\"1055\">4. Marine and General Engineering<\/strong><\/h3><ul data-start=\"1056\" data-end=\"1223\"><li data-start=\"1056\" data-end=\"1137\"><p data-start=\"1058\" data-end=\"1137\">Marine fasteners and hardware requiring <strong data-start=\"1098\" data-end=\"1135\">strength and corrosion resistance<\/strong><\/p><\/li><li data-start=\"1138\" data-end=\"1223\"><p data-start=\"1140\" data-end=\"1223\">Precision engineering parts subjected to mechanical stress and moderate corrosion<\/p><\/li><\/ul><hr data-start=\"1225\" data-end=\"1228\" \/><h3 data-start=\"1230\" data-end=\"1245\"><strong data-start=\"1234\" data-end=\"1245\">Summary<\/strong><\/h3><p data-start=\"1246\" data-end=\"1548\">431 stainless steel combines <strong data-start=\"1275\" data-end=\"1342\">high strength, good hardness, and moderate corrosion resistance<\/strong>, making it suitable for <strong data-start=\"1367\" data-end=\"1442\">aerospace, automotive, industrial, oil and gas, and marine applications<\/strong>. It is ideal for <strong data-start=\"1460\" data-end=\"1545\">components requiring durability under stress in moderately corrosive environments<\/strong>.<\/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-ceca734 e-con-full e-flex e-con e-child\" data-id=\"ceca734\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-dbc9dbd elementor-hidden-desktop elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"dbc9dbd\" 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-f9dba3f elementor-widget elementor-widget-text-editor\" data-id=\"f9dba3f\" 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 data-start=\"86\" data-end=\"131\"><strong data-start=\"89\" data-end=\"131\">Characteristics of 431 Stainless Steel<\/strong><\/h2><p data-start=\"133\" data-end=\"390\"><strong data-start=\"133\" data-end=\"156\">431 stainless steel<\/strong> is a <strong data-start=\"162\" data-end=\"193\">martensitic stainless steel<\/strong> known for its <strong data-start=\"208\" data-end=\"276\">high strength, excellent hardness, and good corrosion resistance<\/strong>. It is widely used in applications that require <strong data-start=\"325\" data-end=\"387\">mechanical durability and moderate resistance to corrosion<\/strong>.<\/p><hr data-start=\"392\" data-end=\"395\" \/><h3 data-start=\"397\" data-end=\"428\"><strong data-start=\"401\" data-end=\"428\">1. Chemical Composition<\/strong><\/h3><ul data-start=\"429\" data-end=\"736\"><li data-start=\"429\" data-end=\"503\"><p data-start=\"431\" data-end=\"503\"><strong data-start=\"431\" data-end=\"444\">Chromium:<\/strong> 15\u201317% \u2013 provides corrosion resistance and hardenability<\/p><\/li><li data-start=\"504\" data-end=\"575\"><p data-start=\"506\" data-end=\"575\"><strong data-start=\"506\" data-end=\"517\">Nickel:<\/strong> 1.25\u20132.5% \u2013 improves toughness and corrosion resistance<\/p><\/li><li data-start=\"576\" data-end=\"647\"><p data-start=\"578\" data-end=\"647\"><strong data-start=\"578\" data-end=\"589\">Carbon:<\/strong> 0.12\u20130.25% \u2013 enables high hardness after heat treatment<\/p><\/li><li data-start=\"648\" data-end=\"736\"><p data-start=\"650\" data-end=\"736\">Minor elements like manganese, silicon, and molybdenum enhance mechanical properties<\/p><\/li><\/ul><hr data-start=\"738\" data-end=\"741\" \/><h3 data-start=\"743\" data-end=\"775\"><strong data-start=\"747\" data-end=\"775\">2. Mechanical Properties<\/strong><\/h3><ul data-start=\"776\" data-end=\"937\"><li data-start=\"776\" data-end=\"824\"><p data-start=\"778\" data-end=\"824\">High <strong data-start=\"783\" data-end=\"822\">tensile strength and yield strength<\/strong><\/p><\/li><li data-start=\"825\" data-end=\"882\"><p data-start=\"827\" data-end=\"882\">Can be <strong data-start=\"834\" data-end=\"859\">hardened to 50\u201355 HRC<\/strong> after heat treatment<\/p><\/li><li data-start=\"883\" data-end=\"937\"><p data-start=\"885\" data-end=\"937\">Excellent <strong data-start=\"895\" data-end=\"935\">wear resistance and fatigue strength<\/strong><\/p><\/li><\/ul><hr data-start=\"939\" data-end=\"942\" \/><h3 data-start=\"944\" data-end=\"975\"><strong data-start=\"948\" data-end=\"975\">3. Corrosion Resistance<\/strong><\/h3><ul data-start=\"976\" data-end=\"1227\"><li data-start=\"976\" data-end=\"1044\"><p data-start=\"978\" data-end=\"1044\">Good resistance to <strong data-start=\"997\" data-end=\"1042\">oxidation and mild corrosive environments<\/strong><\/p><\/li><li data-start=\"1045\" data-end=\"1136\"><p data-start=\"1047\" data-end=\"1136\">Superior to standard carbon steels but lower than austenitic stainless steels (304\/316)<\/p><\/li><li data-start=\"1137\" data-end=\"1227\"><p data-start=\"1139\" data-end=\"1227\">Suitable for <strong data-start=\"1152\" data-end=\"1201\">marine, chemical, and industrial applications<\/strong> with moderate corrosion<\/p><\/li><\/ul><hr data-start=\"1229\" data-end=\"1232\" \/><h3 data-start=\"1234\" data-end=\"1274\"><strong data-start=\"1238\" data-end=\"1274\">4. Fabrication and Machinability<\/strong><\/h3><ul data-start=\"1275\" data-end=\"1474\"><li data-start=\"1275\" data-end=\"1315\"><p data-start=\"1277\" data-end=\"1315\">Machinable in <strong data-start=\"1291\" data-end=\"1313\">annealed condition<\/strong><\/p><\/li><li data-start=\"1316\" data-end=\"1415\"><p data-start=\"1318\" data-end=\"1415\">Can be <strong data-start=\"1325\" data-end=\"1345\">welded carefully<\/strong>, though post-weld heat treatment is recommended to restore hardness<\/p><\/li><li data-start=\"1416\" data-end=\"1474\"><p data-start=\"1418\" data-end=\"1474\">Cold working is possible but may require stress relief<\/p><\/li><\/ul><hr data-start=\"1476\" data-end=\"1479\" \/><h3 data-start=\"1481\" data-end=\"1504\"><strong data-start=\"1485\" data-end=\"1504\">5. Applications<\/strong><\/h3><ul data-start=\"1505\" data-end=\"1669\"><li data-start=\"1505\" data-end=\"1544\"><p data-start=\"1507\" data-end=\"1544\">Aerospace and automotive components<\/p><\/li><li data-start=\"1545\" data-end=\"1580\"><p data-start=\"1547\" data-end=\"1580\">Pump, valve, and fastener parts<\/p><\/li><li data-start=\"1581\" data-end=\"1627\"><p data-start=\"1583\" data-end=\"1627\">Shafts, springs, and structural components<\/p><\/li><li data-start=\"1628\" data-end=\"1669\"><p data-start=\"1630\" data-end=\"1669\">Oil, gas, and petrochemical equipment<\/p><\/li><\/ul><hr data-start=\"1671\" data-end=\"1674\" \/><h3 data-start=\"1676\" data-end=\"1691\"><strong data-start=\"1680\" data-end=\"1691\">Summary<\/strong><\/h3><p data-start=\"1692\" data-end=\"1969\">431 stainless steel is characterized by <strong data-start=\"1732\" data-end=\"1804\">high strength, excellent hardness, and moderate corrosion resistance<\/strong>. Its combination of properties makes it ideal for <strong data-start=\"1855\" data-end=\"1917\">aerospace, automotive, industrial, and marine applications<\/strong> requiring <strong data-start=\"1928\" data-end=\"1966\">durable, wear-resistant components<\/strong>.<\/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-8c60995 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"8c60995\" 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-87a411c elementor-widget elementor-widget-heading\" data-id=\"87a411c\" 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-9156a43 elementor-widget elementor-widget-n-accordion\" data-id=\"9156a43\" 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-1520\" 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-1520\" >\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-1520\" class=\"elementor-element elementor-element-8ab721a e-flex e-con-boxed e-con e-child\" data-id=\"8ab721a\" 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-798998c elementor-widget elementor-widget-text-editor\" data-id=\"798998c\" 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 data-start=\"98\" data-end=\"139\"><strong data-start=\"101\" data-end=\"139\">Fabrication of 431 Stainless Steel<\/strong><\/h2><p data-start=\"141\" data-end=\"416\"><strong data-start=\"141\" data-end=\"164\">431 stainless steel<\/strong> is a <strong data-start=\"170\" data-end=\"225\">martensitic precipitation-hardening stainless steel<\/strong> known for its <strong data-start=\"240\" data-end=\"321\">high strength, good corrosion resistance, and excellent mechanical properties<\/strong>. Its fabrication requires careful handling due to its <strong data-start=\"376\" data-end=\"413\">hardening capability and strength<\/strong>.<\/p><hr data-start=\"418\" data-end=\"421\" \/><h3 data-start=\"423\" data-end=\"441\"><strong data-start=\"427\" data-end=\"441\">1. Forming<\/strong><\/h3><ul data-start=\"442\" data-end=\"900\"><li data-start=\"442\" data-end=\"659\"><p data-start=\"444\" data-end=\"462\"><strong data-start=\"444\" data-end=\"460\">Hot Working:<\/strong><\/p><ul data-start=\"465\" data-end=\"659\"><li data-start=\"465\" data-end=\"516\"><p data-start=\"467\" data-end=\"516\">Can be performed in the <strong data-start=\"491\" data-end=\"513\">annealed condition<\/strong>.<\/p><\/li><li data-start=\"519\" data-end=\"585\"><p data-start=\"521\" data-end=\"585\">Typical hot working temperature: <strong data-start=\"554\" data-end=\"582\">950\u20131050\u00b0C (1740\u20131920\u00b0F)<\/strong>.<\/p><\/li><li data-start=\"588\" data-end=\"659\"><p data-start=\"590\" data-end=\"659\">Avoid overheating to prevent grain growth, which reduces toughness.<\/p><\/li><\/ul><\/li><li data-start=\"660\" data-end=\"900\"><p data-start=\"662\" data-end=\"681\"><strong data-start=\"662\" data-end=\"679\">Cold Working:<\/strong><\/p><ul data-start=\"684\" data-end=\"900\"><li data-start=\"684\" data-end=\"739\"><p data-start=\"686\" data-end=\"739\">Cold forming is possible in the <strong data-start=\"718\" data-end=\"736\">annealed state<\/strong>.<\/p><\/li><li data-start=\"742\" data-end=\"836\"><p data-start=\"744\" data-end=\"836\">Increases strength via <strong data-start=\"767\" data-end=\"787\">strain hardening<\/strong>, but excessive deformation may cause cracking.<\/p><\/li><li data-start=\"839\" data-end=\"900\"><p data-start=\"841\" data-end=\"900\">Cold rolling, bending, and stamping are common processes.<\/p><\/li><\/ul><\/li><\/ul><hr data-start=\"902\" data-end=\"905\" \/><h3 data-start=\"907\" data-end=\"927\"><strong data-start=\"911\" data-end=\"927\">2. Machining<\/strong><\/h3><ul data-start=\"928\" data-end=\"1144\"><li data-start=\"928\" data-end=\"980\"><p data-start=\"930\" data-end=\"980\">Easier to machine in the <strong data-start=\"955\" data-end=\"977\">annealed condition<\/strong>.<\/p><\/li><li data-start=\"981\" data-end=\"1071\"><p data-start=\"983\" data-end=\"1071\">Hardened 431 is <strong data-start=\"999\" data-end=\"1023\">difficult to machine<\/strong>, requiring carbide tooling and slower speeds.<\/p><\/li><li data-start=\"1072\" data-end=\"1144\"><p data-start=\"1074\" data-end=\"1144\">Good surface finish can be achieved with proper tooling and coolant.<\/p><\/li><\/ul><hr data-start=\"1146\" data-end=\"1149\" \/><h3 data-start=\"1151\" data-end=\"1169\"><strong data-start=\"1155\" data-end=\"1169\">3. Welding<\/strong><\/h3><ul data-start=\"1170\" data-end=\"1402\"><li data-start=\"1170\" data-end=\"1290\"><p data-start=\"1172\" data-end=\"1290\"><strong data-start=\"1172\" data-end=\"1184\">Weldable<\/strong>, but preheating and post-weld heat treatment are recommended to <strong data-start=\"1249\" data-end=\"1287\">reduce stress and prevent cracking<\/strong>.<\/p><\/li><li data-start=\"1291\" data-end=\"1402\"><p data-start=\"1293\" data-end=\"1402\">Use <strong data-start=\"1297\" data-end=\"1340\">matching or low-carbon filler materials<\/strong> to maintain corrosion resistance and mechanical properties.<\/p><\/li><\/ul><hr data-start=\"1404\" data-end=\"1407\" \/><h3 data-start=\"1409\" data-end=\"1434\"><strong data-start=\"1413\" data-end=\"1434\">4. Heat Treatment<\/strong><\/h3><ul data-start=\"1435\" data-end=\"1656\"><li data-start=\"1435\" data-end=\"1591\"><p data-start=\"1437\" data-end=\"1591\">Annealing, solution treatment, and precipitation hardening are part of fabrication to achieve <strong data-start=\"1531\" data-end=\"1588\">desired hardness, strength, and dimensional stability<\/strong>.<\/p><\/li><li data-start=\"1592\" data-end=\"1656\"><p data-start=\"1594\" data-end=\"1656\">Proper heat treatment is essential after forming or welding.<\/p><\/li><\/ul><hr data-start=\"1658\" data-end=\"1661\" \/><h3 data-start=\"1663\" data-end=\"1691\"><strong data-start=\"1667\" data-end=\"1691\">5. Surface Treatment<\/strong><\/h3><ul data-start=\"1692\" data-end=\"1856\"><li data-start=\"1692\" data-end=\"1762\"><p data-start=\"1694\" data-end=\"1762\">Can be <strong data-start=\"1701\" data-end=\"1727\">polished or passivated<\/strong> to improve corrosion resistance.<\/p><\/li><li data-start=\"1763\" data-end=\"1856\"><p data-start=\"1765\" data-end=\"1856\">Surface finishing is important for <strong data-start=\"1800\" data-end=\"1853\">aerospace, automotive, and precision applications<\/strong>.<\/p><\/li><\/ul><hr data-start=\"1858\" data-end=\"1861\" \/><h3 data-start=\"1863\" data-end=\"1914\"><strong data-start=\"1867\" data-end=\"1914\">6. Applications Benefiting from Fabrication<\/strong><\/h3><ul data-start=\"1915\" data-end=\"2058\"><li data-start=\"1915\" data-end=\"1969\"><p data-start=\"1917\" data-end=\"1969\">Automotive shafts, fasteners, and valve components<\/p><\/li><li data-start=\"1970\" data-end=\"1992\"><p data-start=\"1972\" data-end=\"1992\">Aerospace hardware<\/p><\/li><li data-start=\"1993\" data-end=\"2058\"><p data-start=\"1995\" data-end=\"2058\">Pump shafts, springs, and high-strength mechanical components<\/p><\/li><\/ul><hr data-start=\"2060\" data-end=\"2063\" \/><h3 data-start=\"2065\" data-end=\"2080\"><strong data-start=\"2069\" data-end=\"2080\">Summary<\/strong><\/h3><p data-start=\"2081\" data-end=\"2492\">Fabrication of 431 stainless steel is typically performed in the <strong data-start=\"2146\" data-end=\"2168\">annealed condition<\/strong>, with careful <strong data-start=\"2183\" data-end=\"2231\">hot and cold working, machining, and welding<\/strong> procedures. Post-fabrication <strong data-start=\"2261\" data-end=\"2301\">heat treatment and surface finishing<\/strong> ensure optimal <strong data-start=\"2317\" data-end=\"2378\">strength, corrosion resistance, and dimensional stability<\/strong>, making it ideal for <strong data-start=\"2400\" data-end=\"2489\">high-strength, precision applications in automotive, aerospace, and industrial fields<\/strong>.<\/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-1521\" 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-1521\" >\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-1521\" class=\"elementor-element elementor-element-875a5ae e-con-full e-flex e-con e-child\" data-id=\"875a5ae\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2759a5b elementor-widget elementor-widget-text-editor\" data-id=\"2759a5b\" 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 data-start=\"98\" data-end=\"139\"><strong data-start=\"101\" data-end=\"139\">Weldability of 431 Stainless Steel<\/strong><\/h2><p data-start=\"141\" data-end=\"437\"><strong data-start=\"141\" data-end=\"164\">431 stainless steel<\/strong> is a <strong data-start=\"170\" data-end=\"225\">martensitic precipitation-hardening stainless steel<\/strong> known for its <strong data-start=\"240\" data-end=\"321\">high strength, good corrosion resistance, and excellent mechanical properties<\/strong>. While it is weldable, special precautions are needed due to its <strong data-start=\"387\" data-end=\"434\">tendency to harden and the risk of cracking<\/strong>.<\/p><hr data-start=\"439\" data-end=\"442\" \/><h3 data-start=\"444\" data-end=\"477\"><strong data-start=\"448\" data-end=\"477\">1. General Considerations<\/strong><\/h3><ul data-start=\"478\" data-end=\"744\"><li data-start=\"478\" data-end=\"560\"><p data-start=\"480\" data-end=\"560\"><strong data-start=\"480\" data-end=\"494\">Preheating<\/strong> is recommended to reduce thermal stresses and prevent cracking.<\/p><\/li><li data-start=\"561\" data-end=\"651\"><p data-start=\"563\" data-end=\"651\">Welding should ideally be performed in the <strong data-start=\"606\" data-end=\"648\">annealed or solution-treated condition<\/strong>.<\/p><\/li><li data-start=\"652\" data-end=\"744\"><p data-start=\"654\" data-end=\"744\">Avoid excessive heat input to <strong data-start=\"684\" data-end=\"741\">minimize distortion and loss of mechanical properties<\/strong>.<\/p><\/li><\/ul><hr data-start=\"746\" data-end=\"749\" \/><h3 data-start=\"751\" data-end=\"772\"><strong data-start=\"755\" data-end=\"772\">2. Preheating<\/strong><\/h3><ul data-start=\"773\" data-end=\"895\"><li data-start=\"773\" data-end=\"820\"><p data-start=\"775\" data-end=\"820\">Typical preheat: <strong data-start=\"792\" data-end=\"817\">150\u2013200\u00b0C (300\u2013390\u00b0F)<\/strong>.<\/p><\/li><li data-start=\"821\" data-end=\"895\"><p data-start=\"823\" data-end=\"895\">Reduces the risk of <strong data-start=\"843\" data-end=\"860\">cold cracking<\/strong> in the heat-affected zone (HAZ).<\/p><\/li><\/ul><hr data-start=\"897\" data-end=\"900\" \/><h3 data-start=\"902\" data-end=\"928\"><strong data-start=\"906\" data-end=\"928\">3. Welding Methods<\/strong><\/h3><ul data-start=\"929\" data-end=\"1170\"><li data-start=\"929\" data-end=\"985\"><p data-start=\"931\" data-end=\"985\"><strong data-start=\"931\" data-end=\"945\">TIG (GTAW)<\/strong> and <strong data-start=\"950\" data-end=\"964\">MIG (GMAW)<\/strong> are commonly used.<\/p><\/li><li data-start=\"986\" data-end=\"1060\"><p data-start=\"988\" data-end=\"1060\"><strong data-start=\"988\" data-end=\"1012\">Stick welding (SMAW)<\/strong> is possible with <strong data-start=\"1030\" data-end=\"1057\">low-hydrogen electrodes<\/strong>.<\/p><\/li><li data-start=\"1061\" data-end=\"1170\"><p data-start=\"1063\" data-end=\"1170\">Precise control of welding parameters is critical to avoid <strong data-start=\"1122\" data-end=\"1167\">cracking and loss of corrosion resistance<\/strong>.<\/p><\/li><\/ul><hr data-start=\"1172\" data-end=\"1175\" \/><h3 data-start=\"1177\" data-end=\"1204\"><strong data-start=\"1181\" data-end=\"1204\">4. Filler Materials<\/strong><\/h3><ul data-start=\"1205\" data-end=\"1405\"><li data-start=\"1205\" data-end=\"1302\"><p data-start=\"1207\" data-end=\"1302\">Use <strong data-start=\"1211\" data-end=\"1240\">matching 431 filler metal<\/strong> for optimal mechanical properties and corrosion resistance.<\/p><\/li><li data-start=\"1303\" data-end=\"1405\"><p data-start=\"1305\" data-end=\"1405\">Low-carbon martensitic or precipitation-hardening fillers can be used to <strong data-start=\"1378\" data-end=\"1402\">reduce cracking risk<\/strong>.<\/p><\/li><\/ul><hr data-start=\"1407\" data-end=\"1410\" \/><h3 data-start=\"1412\" data-end=\"1447\"><strong data-start=\"1416\" data-end=\"1447\">5. Post-Weld Heat Treatment<\/strong><\/h3><ul data-start=\"1448\" data-end=\"1735\"><li data-start=\"1448\" data-end=\"1529\"><p data-start=\"1450\" data-end=\"1529\"><strong data-start=\"1450\" data-end=\"1494\">Stress relief or precipitation hardening<\/strong> is often required after welding.<\/p><\/li><li data-start=\"1530\" data-end=\"1643\"><p data-start=\"1532\" data-end=\"1643\">Heat treatment typically involves heating to <strong data-start=\"1577\" data-end=\"1602\">480\u2013500\u00b0C (900\u2013930\u00b0F)<\/strong> to restore <strong data-start=\"1614\" data-end=\"1640\">strength and toughness<\/strong>.<\/p><\/li><li data-start=\"1644\" data-end=\"1735\"><p data-start=\"1646\" data-end=\"1735\">Ensures that <strong data-start=\"1659\" data-end=\"1706\">welded areas maintain mechanical properties<\/strong> similar to the base metal.<\/p><\/li><\/ul><hr data-start=\"1737\" data-end=\"1740\" \/><h3 data-start=\"1742\" data-end=\"1764\"><strong data-start=\"1746\" data-end=\"1764\">6. Limitations<\/strong><\/h3><ul data-start=\"1765\" data-end=\"2038\"><li data-start=\"1765\" data-end=\"1860\"><p data-start=\"1767\" data-end=\"1860\">Welding in the <strong data-start=\"1782\" data-end=\"1810\">fully hardened condition<\/strong> is not recommended due to the risk of cracking.<\/p><\/li><li data-start=\"1861\" data-end=\"1963\"><p data-start=\"1863\" data-end=\"1963\">High-strength welded joints may require <strong data-start=\"1903\" data-end=\"1960\">careful control of heat input and post-weld treatment<\/strong>.<\/p><\/li><li data-start=\"1964\" data-end=\"2038\"><p data-start=\"1966\" data-end=\"2038\">Not as easily weldable as austenitic stainless steels like 304 or 316.<\/p><\/li><\/ul><hr data-start=\"2040\" data-end=\"2043\" \/><h3 data-start=\"2045\" data-end=\"2111\"><strong data-start=\"2049\" data-end=\"2111\">7. Applications Benefiting from Welded 431 Stainless Steel<\/strong><\/h3><ul data-start=\"2112\" data-end=\"2229\"><li data-start=\"2112\" data-end=\"2166\"><p data-start=\"2114\" data-end=\"2166\">Automotive shafts, fasteners, and valve components<\/p><\/li><li data-start=\"2167\" data-end=\"2189\"><p data-start=\"2169\" data-end=\"2189\">Aerospace hardware<\/p><\/li><li data-start=\"2190\" data-end=\"2229\"><p data-start=\"2192\" data-end=\"2229\">High-strength industrial components<\/p><\/li><\/ul><hr data-start=\"2231\" data-end=\"2234\" \/><h3 data-start=\"2236\" data-end=\"2251\"><strong data-start=\"2240\" data-end=\"2251\">Summary<\/strong><\/h3><p data-start=\"2252\" data-end=\"2641\">431 stainless steel is <strong data-start=\"2275\" data-end=\"2304\">weldable with precautions<\/strong>, ideally in the <strong data-start=\"2321\" data-end=\"2363\">annealed or solution-treated condition<\/strong>. Proper <strong data-start=\"2372\" data-end=\"2459\">preheating, controlled welding, matching filler metal, and post-weld heat treatment<\/strong> are essential to achieve <strong data-start=\"2485\" data-end=\"2545\">high-strength, corrosion-resistant, and crack-free welds<\/strong>, making it suitable for <strong data-start=\"2570\" data-end=\"2638\">automotive, aerospace, and high-strength industrial applications<\/strong>.<\/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-1522\" 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-1522\" >\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-1522\" class=\"elementor-element elementor-element-455c4dc e-flex e-con-boxed e-con e-child\" data-id=\"455c4dc\" 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-6e9f701 elementor-widget elementor-widget-text-editor\" data-id=\"6e9f701\" 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 data-start=\"100\" data-end=\"143\"><strong data-start=\"103\" data-end=\"143\">Machinability of 431 Stainless Steel<\/strong><\/h2><p data-start=\"145\" data-end=\"449\"><strong data-start=\"145\" data-end=\"168\">431 stainless steel<\/strong> is a <strong data-start=\"174\" data-end=\"229\">martensitic precipitation-hardening stainless steel<\/strong> known for its <strong data-start=\"244\" data-end=\"298\">high strength, toughness, and corrosion resistance<\/strong>. Its machinability depends on the <strong data-start=\"333\" data-end=\"361\">heat treatment condition<\/strong>, with the annealed state being easier to machine than the hardened or aged condition.<\/p><hr data-start=\"451\" data-end=\"454\" \/><h3 data-start=\"456\" data-end=\"490\"><strong data-start=\"460\" data-end=\"490\">1. General Characteristics<\/strong><\/h3><ul data-start=\"491\" data-end=\"842\"><li data-start=\"491\" data-end=\"664\"><p data-start=\"493\" data-end=\"512\"><strong data-start=\"493\" data-end=\"510\">Annealed 431:<\/strong><\/p><ul data-start=\"515\" data-end=\"664\"><li data-start=\"515\" data-end=\"600\"><p data-start=\"517\" data-end=\"600\">Relatively easy to machine with standard high-speed steel (HSS) or carbide tools.<\/p><\/li><li data-start=\"603\" data-end=\"664\"><p data-start=\"605\" data-end=\"664\">Provides <strong data-start=\"614\" data-end=\"637\">good surface finish<\/strong> and dimensional control.<\/p><\/li><\/ul><\/li><li data-start=\"665\" data-end=\"842\"><p data-start=\"667\" data-end=\"694\"><strong data-start=\"667\" data-end=\"692\">Hardened or aged 431:<\/strong><\/p><ul data-start=\"697\" data-end=\"842\"><li data-start=\"697\" data-end=\"763\"><p data-start=\"699\" data-end=\"763\">Difficult to machine due to <strong data-start=\"727\" data-end=\"760\">high hardness (up to ~50 HRC)<\/strong>.<\/p><\/li><li data-start=\"766\" data-end=\"842\"><p data-start=\"768\" data-end=\"842\">Requires <strong data-start=\"777\" data-end=\"839\">carbide tooling, slower cutting speeds, and proper coolant<\/strong>.<\/p><\/li><\/ul><\/li><\/ul><hr data-start=\"844\" data-end=\"847\" \/><h3 data-start=\"849\" data-end=\"890\"><strong data-start=\"853\" data-end=\"890\">2. Recommended Cutting Parameters<\/strong><\/h3><ul data-start=\"891\" data-end=\"1205\"><li data-start=\"891\" data-end=\"975\"><p data-start=\"893\" data-end=\"975\"><strong data-start=\"893\" data-end=\"911\">Cutting Speed:<\/strong> Lower speeds for hardened or precipitation-hardened material.<\/p><\/li><li data-start=\"976\" data-end=\"1044\"><p data-start=\"978\" data-end=\"1044\"><strong data-start=\"978\" data-end=\"992\">Feed Rate:<\/strong> Moderate, balancing surface finish and tool life.<\/p><\/li><li data-start=\"1045\" data-end=\"1114\"><p data-start=\"1047\" data-end=\"1114\"><strong data-start=\"1047\" data-end=\"1064\">Depth of Cut:<\/strong> Shallow for hardened steel to reduce tool wear.<\/p><\/li><li data-start=\"1115\" data-end=\"1205\"><p data-start=\"1117\" data-end=\"1205\"><strong data-start=\"1117\" data-end=\"1129\">Coolant:<\/strong> Use water-soluble oils or cutting fluids to <strong data-start=\"1174\" data-end=\"1202\">reduce heat and friction<\/strong>.<\/p><\/li><\/ul><hr data-start=\"1207\" data-end=\"1210\" \/><h3 data-start=\"1212\" data-end=\"1230\"><strong data-start=\"1216\" data-end=\"1230\">3. Tooling<\/strong><\/h3><ul data-start=\"1231\" data-end=\"1531\"><li data-start=\"1231\" data-end=\"1322\"><p data-start=\"1233\" data-end=\"1322\"><strong data-start=\"1233\" data-end=\"1256\">Annealed condition:<\/strong> High-speed steel (HSS) tools can be used for general machining.<\/p><\/li><li data-start=\"1323\" data-end=\"1436\"><p data-start=\"1325\" data-end=\"1436\"><strong data-start=\"1325\" data-end=\"1353\">Hardened\/aged condition:<\/strong> Carbide or ceramic tools are recommended for <strong data-start=\"1399\" data-end=\"1433\">drilling, turning, and milling<\/strong>.<\/p><\/li><li data-start=\"1437\" data-end=\"1531\"><p data-start=\"1439\" data-end=\"1531\"><strong data-start=\"1439\" data-end=\"1465\">Threading and tapping:<\/strong> Slow speeds and sharp tooling to avoid <strong data-start=\"1505\" data-end=\"1528\">galling or cracking<\/strong>.<\/p><\/li><\/ul><hr data-start=\"1533\" data-end=\"1536\" \/><h3 data-start=\"1538\" data-end=\"1569\"><strong data-start=\"1542\" data-end=\"1569\">4. Effects of Machining<\/strong><\/h3><ul data-start=\"1570\" data-end=\"1811\"><li data-start=\"1570\" data-end=\"1661\"><p data-start=\"1572\" data-end=\"1661\">Strain hardening may occur in the machined surface if proper speeds are not maintained.<\/p><\/li><li data-start=\"1662\" data-end=\"1735\"><p data-start=\"1664\" data-end=\"1735\">Good dimensional precision can be achieved in the annealed condition.<\/p><\/li><li data-start=\"1736\" data-end=\"1811\"><p data-start=\"1738\" data-end=\"1811\">Hardened 431 requires careful handling to <strong data-start=\"1780\" data-end=\"1808\">maintain surface quality<\/strong>.<\/p><\/li><\/ul><hr data-start=\"1813\" data-end=\"1816\" \/><h3 data-start=\"1818\" data-end=\"1871\"><strong data-start=\"1822\" data-end=\"1871\">5. Applications Benefiting from Machinability<\/strong><\/h3><ul data-start=\"1872\" data-end=\"2003\"><li data-start=\"1872\" data-end=\"1907\"><p data-start=\"1874\" data-end=\"1907\">Automotive shafts and fasteners<\/p><\/li><li data-start=\"1908\" data-end=\"1932\"><p data-start=\"1910\" data-end=\"1932\">Aerospace components<\/p><\/li><li data-start=\"1933\" data-end=\"1968\"><p data-start=\"1935\" data-end=\"1968\">Precision valves and pump parts<\/p><\/li><li data-start=\"1969\" data-end=\"2003\"><p data-start=\"1971\" data-end=\"2003\">High-strength mechanical parts<\/p><\/li><\/ul><hr data-start=\"2005\" data-end=\"2008\" \/><h3 data-start=\"2010\" data-end=\"2032\"><strong data-start=\"2014\" data-end=\"2032\">6. Limitations<\/strong><\/h3><ul data-start=\"2033\" data-end=\"2251\"><li data-start=\"2033\" data-end=\"2106\"><p data-start=\"2035\" data-end=\"2106\">Hardened 431 is <strong data-start=\"2051\" data-end=\"2077\">challenging to machine<\/strong> without specialized tools.<\/p><\/li><li data-start=\"2107\" data-end=\"2185\"><p data-start=\"2109\" data-end=\"2185\">Excessive heat during machining may reduce hardness or damage the surface.<\/p><\/li><li data-start=\"2186\" data-end=\"2251\"><p data-start=\"2188\" data-end=\"2251\">Requires careful <strong data-start=\"2205\" data-end=\"2248\">cooling, tooling, and feed rate control<\/strong>.<\/p><\/li><\/ul><hr data-start=\"2253\" data-end=\"2256\" \/><h3 data-start=\"2258\" data-end=\"2273\"><strong data-start=\"2262\" data-end=\"2273\">Summary<\/strong><\/h3><p data-start=\"2274\" data-end=\"2653\">Machinability of 431 stainless steel is <strong data-start=\"2314\" data-end=\"2352\">moderate in the annealed condition<\/strong> and <strong data-start=\"2357\" data-end=\"2404\">difficult in the hardened or aged condition<\/strong>. Proper <strong data-start=\"2413\" data-end=\"2469\">tool selection, cutting speed, feed, and coolant use<\/strong> are essential to achieve <strong data-start=\"2495\" data-end=\"2559\">accurate dimensions, good surface finish, and long tool life<\/strong>, making it suitable for <strong data-start=\"2584\" data-end=\"2650\">automotive, aerospace, and high-strength industrial components<\/strong>.<\/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-1523\" 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-1523\" >\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-1523\" class=\"elementor-element elementor-element-fc8407a e-flex e-con-boxed e-con e-child\" data-id=\"fc8407a\" 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-70d199c elementor-widget elementor-widget-text-editor\" data-id=\"70d199c\" 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 data-start=\"107\" data-end=\"157\"><strong data-start=\"110\" data-end=\"157\">Corrosion Resistance of 431 Stainless Steel<\/strong><\/h2><p data-start=\"159\" data-end=\"447\"><strong data-start=\"159\" data-end=\"182\">431 stainless steel<\/strong> is a <strong data-start=\"188\" data-end=\"243\">martensitic precipitation-hardening stainless steel<\/strong> that combines <strong data-start=\"258\" data-end=\"321\">high strength, toughness, and moderate corrosion resistance<\/strong>. Its corrosion resistance is <strong data-start=\"351\" data-end=\"385\">better than most carbon steels<\/strong> but lower than austenitic stainless steels like 304 or 316.<\/p><hr data-start=\"449\" data-end=\"452\" \/><h3 data-start=\"454\" data-end=\"483\"><strong data-start=\"458\" data-end=\"483\">1. General Properties<\/strong><\/h3><ul data-start=\"484\" data-end=\"801\"><li data-start=\"484\" data-end=\"578\"><p data-start=\"486\" data-end=\"578\">Exhibits <strong data-start=\"495\" data-end=\"539\">good resistance to atmospheric corrosion<\/strong> and <strong data-start=\"544\" data-end=\"575\">mild oxidizing environments<\/strong>.<\/p><\/li><li data-start=\"579\" data-end=\"677\"><p data-start=\"581\" data-end=\"677\">Maintains resistance to <strong data-start=\"605\" data-end=\"674\">freshwater, mildly acidic conditions, and some chemical exposures<\/strong>.<\/p><\/li><li data-start=\"678\" data-end=\"801\"><p data-start=\"680\" data-end=\"801\">Less resistant to <strong data-start=\"698\" data-end=\"751\">chloride-rich environments or marine applications<\/strong>, where pitting and crevice corrosion may occur.<\/p><\/li><\/ul><hr data-start=\"803\" data-end=\"806\" \/><h3 data-start=\"808\" data-end=\"857\"><strong data-start=\"812\" data-end=\"857\">2. Factors Affecting Corrosion Resistance<\/strong><\/h3><ul data-start=\"858\" data-end=\"1194\"><li data-start=\"858\" data-end=\"969\"><p data-start=\"860\" data-end=\"969\"><strong data-start=\"860\" data-end=\"879\">Heat treatment:<\/strong> Hardened or precipitation-hardened conditions may slightly reduce corrosion resistance.<\/p><\/li><li data-start=\"970\" data-end=\"1054\"><p data-start=\"972\" data-end=\"1054\"><strong data-start=\"972\" data-end=\"991\">Surface finish:<\/strong> Smooth, polished, or passivated surfaces improve resistance.<\/p><\/li><li data-start=\"1055\" data-end=\"1194\"><p data-start=\"1057\" data-end=\"1194\"><strong data-start=\"1057\" data-end=\"1073\">Environment:<\/strong> Performs well in <strong data-start=\"1091\" data-end=\"1144\">low-corrosion, indoor, or mildly humid conditions<\/strong>; avoid continuous exposure to aggressive salts.<\/p><\/li><\/ul><hr data-start=\"1196\" data-end=\"1199\" \/><h3 data-start=\"1201\" data-end=\"1242\"><strong data-start=\"1205\" data-end=\"1242\">3. Enhancing Corrosion Resistance<\/strong><\/h3><ul data-start=\"1243\" data-end=\"1486\"><li data-start=\"1243\" data-end=\"1320\"><p data-start=\"1245\" data-end=\"1320\"><strong data-start=\"1245\" data-end=\"1259\">Polishing:<\/strong> Reduces surface roughness and corrosion initiation points.<\/p><\/li><li data-start=\"1321\" data-end=\"1405\"><p data-start=\"1323\" data-end=\"1405\"><strong data-start=\"1323\" data-end=\"1339\">Passivation:<\/strong> Nitric or citric acid treatment forms a protective oxide layer.<\/p><\/li><li data-start=\"1406\" data-end=\"1486\"><p data-start=\"1408\" data-end=\"1486\"><strong data-start=\"1408\" data-end=\"1432\">Regular maintenance:<\/strong> Cleaning and drying prevent corrosion and staining.<\/p><\/li><\/ul><hr data-start=\"1488\" data-end=\"1491\" \/><h3 data-start=\"1493\" data-end=\"1553\"><strong data-start=\"1497\" data-end=\"1553\">4. Applications Benefiting from Corrosion Resistance<\/strong><\/h3><ul data-start=\"1554\" data-end=\"1774\"><li data-start=\"1554\" data-end=\"1630\"><p data-start=\"1556\" data-end=\"1630\">Automotive components exposed to moderate conditions (shafts, fasteners)<\/p><\/li><li data-start=\"1631\" data-end=\"1653\"><p data-start=\"1633\" data-end=\"1653\">Aerospace hardware<\/p><\/li><li data-start=\"1654\" data-end=\"1695\"><p data-start=\"1656\" data-end=\"1695\">Precision industrial parts and valves<\/p><\/li><li data-start=\"1696\" data-end=\"1774\"><p data-start=\"1698\" data-end=\"1774\">Components in mildly corrosive environments where <strong data-start=\"1748\" data-end=\"1772\">strength is critical<\/strong><\/p><\/li><\/ul><hr data-start=\"1776\" data-end=\"1779\" \/><h3 data-start=\"1781\" data-end=\"1803\"><strong data-start=\"1785\" data-end=\"1803\">5. Limitations<\/strong><\/h3><ul data-start=\"1804\" data-end=\"2068\"><li data-start=\"1804\" data-end=\"1897\"><p data-start=\"1806\" data-end=\"1897\">Not recommended for <strong data-start=\"1826\" data-end=\"1866\">marine or highly acidic environments<\/strong> without protective coatings.<\/p><\/li><li data-start=\"1898\" data-end=\"1981\"><p data-start=\"1900\" data-end=\"1981\">Susceptible to <strong data-start=\"1915\" data-end=\"1948\">pitting and crevice corrosion<\/strong> in chloride-rich environments.<\/p><\/li><li data-start=\"1982\" data-end=\"2068\"><p data-start=\"1984\" data-end=\"2068\">Welding without post-weld treatment may <strong data-start=\"2024\" data-end=\"2065\">reduce localized corrosion resistance<\/strong>.<\/p><\/li><\/ul><hr data-start=\"2070\" data-end=\"2073\" \/><h3 data-start=\"2075\" data-end=\"2090\"><strong data-start=\"2079\" data-end=\"2090\">Summary<\/strong><\/h3><p data-start=\"2091\" data-end=\"2446\">431 stainless steel provides <strong data-start=\"2120\" data-end=\"2153\">moderate corrosion resistance<\/strong>, suitable for <strong data-start=\"2168\" data-end=\"2222\">automotive, aerospace, and industrial applications<\/strong> where <strong data-start=\"2229\" data-end=\"2260\">high strength and toughness<\/strong> are essential. Its corrosion resistance can be enhanced by <strong data-start=\"2320\" data-end=\"2370\">polishing, passivation, and proper maintenance<\/strong>, but it is <strong data-start=\"2382\" data-end=\"2443\">less suitable for highly corrosive or marine environments<\/strong>.<\/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-1524\" 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-1524\" >\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-1524\" class=\"elementor-element elementor-element-e555b4d e-flex e-con-boxed e-con e-child\" data-id=\"e555b4d\" 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-5715a18 elementor-widget elementor-widget-text-editor\" data-id=\"5715a18\" 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 data-start=\"99\" data-end=\"141\"><strong data-start=\"102\" data-end=\"141\">Cold Working of 431 Stainless Steel<\/strong><\/h2><p data-start=\"143\" data-end=\"470\"><strong data-start=\"143\" data-end=\"166\">431 stainless steel<\/strong> is a <strong data-start=\"172\" data-end=\"227\">martensitic precipitation-hardening stainless steel<\/strong> known for its <strong data-start=\"242\" data-end=\"305\">high strength, toughness, and moderate corrosion resistance<\/strong>. Cold working can be used to <strong data-start=\"335\" data-end=\"369\">increase strength and hardness<\/strong>, but it requires careful control due to the steel\u2019s <strong data-start=\"422\" data-end=\"467\">high strength and work-hardening tendency<\/strong>.<\/p><hr data-start=\"472\" data-end=\"475\" \/><h3 data-start=\"477\" data-end=\"511\"><strong data-start=\"481\" data-end=\"511\">1. General Characteristics<\/strong><\/h3><ul data-start=\"512\" data-end=\"773\"><li data-start=\"512\" data-end=\"590\"><p data-start=\"514\" data-end=\"590\">Cold working increases <strong data-start=\"537\" data-end=\"562\">strength and hardness<\/strong> via <strong data-start=\"567\" data-end=\"587\">strain hardening<\/strong>.<\/p><\/li><li data-start=\"591\" data-end=\"659\"><p data-start=\"593\" data-end=\"659\">Ductility decreases as the amount of cold deformation increases.<\/p><\/li><li data-start=\"660\" data-end=\"773\"><p data-start=\"662\" data-end=\"773\">Work is typically performed in the <strong data-start=\"697\" data-end=\"739\">annealed or solution-treated condition<\/strong> to reduce the risk of cracking.<\/p><\/li><\/ul><hr data-start=\"775\" data-end=\"778\" \/><h3 data-start=\"780\" data-end=\"812\"><strong data-start=\"784\" data-end=\"812\">2. Recommended Practices<\/strong><\/h3><ul data-start=\"813\" data-end=\"1143\"><li data-start=\"813\" data-end=\"899\"><p data-start=\"815\" data-end=\"899\"><strong data-start=\"815\" data-end=\"825\">Anneal<\/strong> or solution-treat the steel before cold working for improved ductility.<\/p><\/li><li data-start=\"900\" data-end=\"984\"><p data-start=\"902\" data-end=\"984\">Apply <strong data-start=\"908\" data-end=\"931\">gradual deformation<\/strong> rather than aggressive forming to avoid fractures.<\/p><\/li><li data-start=\"985\" data-end=\"1046\"><p data-start=\"987\" data-end=\"1046\"><strong data-start=\"987\" data-end=\"1002\">Lubrication<\/strong> can reduce tool wear and surface defects.<\/p><\/li><li data-start=\"1047\" data-end=\"1143\"><p data-start=\"1049\" data-end=\"1143\">For extensive deformation, <strong data-start=\"1076\" data-end=\"1102\">intermediate annealing<\/strong> may be necessary to restore ductility.<\/p><\/li><\/ul><hr data-start=\"1145\" data-end=\"1148\" \/><h3 data-start=\"1150\" data-end=\"1184\"><strong data-start=\"1154\" data-end=\"1184\">3. Effects of Cold Working<\/strong><\/h3><ul data-start=\"1185\" data-end=\"1398\"><li data-start=\"1185\" data-end=\"1253\"><p data-start=\"1187\" data-end=\"1253\"><strong data-start=\"1187\" data-end=\"1222\">Increased strength and hardness<\/strong> proportional to deformation.<\/p><\/li><li data-start=\"1254\" data-end=\"1319\"><p data-start=\"1256\" data-end=\"1319\"><strong data-start=\"1256\" data-end=\"1277\">Reduced ductility<\/strong>, making further forming more difficult.<\/p><\/li><li data-start=\"1320\" data-end=\"1398\"><p data-start=\"1322\" data-end=\"1398\">Surface finish and dimensional accuracy can be improved in some processes.<\/p><\/li><\/ul><hr data-start=\"1400\" data-end=\"1403\" \/><h3 data-start=\"1405\" data-end=\"1457\"><strong data-start=\"1409\" data-end=\"1457\">4. Applications Benefiting from Cold Working<\/strong><\/h3><ul data-start=\"1458\" data-end=\"1667\"><li data-start=\"1458\" data-end=\"1503\"><p data-start=\"1460\" data-end=\"1503\">Automotive shafts, fasteners, and springs<\/p><\/li><li data-start=\"1504\" data-end=\"1552\"><p data-start=\"1506\" data-end=\"1552\">Aerospace components requiring high strength<\/p><\/li><li data-start=\"1553\" data-end=\"1604\"><p data-start=\"1555\" data-end=\"1604\">Precision mechanical parts and industrial tools<\/p><\/li><li data-start=\"1605\" data-end=\"1667\"><p data-start=\"1607\" data-end=\"1667\">Components that will undergo final hardening after shaping<\/p><\/li><\/ul><hr data-start=\"1669\" data-end=\"1672\" \/><h3 data-start=\"1674\" data-end=\"1696\"><strong data-start=\"1678\" data-end=\"1696\">5. Limitations<\/strong><\/h3><ul data-start=\"1697\" data-end=\"1948\"><li data-start=\"1697\" data-end=\"1781\"><p data-start=\"1699\" data-end=\"1781\">Hardened or overworked 431 stainless steel is <strong data-start=\"1745\" data-end=\"1778\">brittle and prone to cracking<\/strong>.<\/p><\/li><li data-start=\"1782\" data-end=\"1842\"><p data-start=\"1784\" data-end=\"1842\">Requires careful control of deformation and temperature.<\/p><\/li><li data-start=\"1843\" data-end=\"1948\"><p data-start=\"1845\" data-end=\"1948\">Cold working alone cannot achieve final hardness\u2014<strong data-start=\"1894\" data-end=\"1945\">post-working heat treatment is usually required<\/strong>.<\/p><\/li><\/ul><hr data-start=\"1950\" data-end=\"1953\" \/><h3 data-start=\"1955\" data-end=\"1970\"><strong data-start=\"1959\" data-end=\"1970\">Summary<\/strong><\/h3><p data-start=\"1971\" data-end=\"2468\">Cold working of 431 stainless steel is <strong data-start=\"2010\" data-end=\"2074\">most effective in the annealed or solution-treated condition<\/strong>, allowing shaping and forming while increasing <strong data-start=\"2122\" data-end=\"2147\">strength and hardness<\/strong>. Excessive cold deformation reduces ductility, so <strong data-start=\"2198\" data-end=\"2251\">controlled deformation and intermediate annealing<\/strong> are critical. After cold working, <strong data-start=\"2286\" data-end=\"2304\">heat treatment<\/strong> is typically applied to achieve the desired <strong data-start=\"2349\" data-end=\"2374\">mechanical properties<\/strong>, making it suitable for <strong data-start=\"2399\" data-end=\"2465\">automotive, aerospace, and high-strength industrial components<\/strong>.<\/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-1525\" 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-1525\" >\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-1525\" class=\"elementor-element elementor-element-b07a4a0 e-flex e-con-boxed e-con e-child\" data-id=\"b07a4a0\" 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-1d7bd7f elementor-widget elementor-widget-text-editor\" data-id=\"1d7bd7f\" 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 data-start=\"101\" data-end=\"145\"><strong data-start=\"104\" data-end=\"145\">Heat Treatment of 431 Stainless Steel<\/strong><\/h2><p data-start=\"147\" data-end=\"437\"><strong data-start=\"147\" data-end=\"170\">431 stainless steel<\/strong> is a <strong data-start=\"176\" data-end=\"231\">martensitic precipitation-hardening stainless steel<\/strong> known for its <strong data-start=\"246\" data-end=\"300\">high strength, toughness, and corrosion resistance<\/strong>. Heat treatment is critical to achieve <strong data-start=\"340\" data-end=\"373\">optimal mechanical properties<\/strong>, including <strong data-start=\"385\" data-end=\"434\">hardness, strength, and dimensional stability<\/strong>.<\/p><hr data-start=\"439\" data-end=\"442\" \/><h3 data-start=\"444\" data-end=\"464\"><strong data-start=\"448\" data-end=\"464\">1. Annealing<\/strong><\/h3><ul data-start=\"465\" data-end=\"758\"><li data-start=\"465\" data-end=\"540\"><p data-start=\"467\" data-end=\"540\"><strong data-start=\"467\" data-end=\"479\">Purpose:<\/strong> Softens the steel for forming, machining, or cold working.<\/p><\/li><li data-start=\"541\" data-end=\"690\"><p data-start=\"543\" data-end=\"557\"><strong data-start=\"543\" data-end=\"555\">Process:<\/strong><\/p><ul data-start=\"560\" data-end=\"690\"><li data-start=\"560\" data-end=\"600\"><p data-start=\"562\" data-end=\"600\">Heat to <strong data-start=\"570\" data-end=\"597\">840\u2013900\u00b0C (1545\u20131650\u00b0F)<\/strong>.<\/p><\/li><li data-start=\"603\" data-end=\"646\"><p data-start=\"605\" data-end=\"646\">Hold to achieve uniform microstructure.<\/p><\/li><li data-start=\"649\" data-end=\"690\"><p data-start=\"651\" data-end=\"690\">Slow cooling in furnace or still air.<\/p><\/li><\/ul><\/li><li data-start=\"691\" data-end=\"758\"><p data-start=\"693\" data-end=\"758\"><strong data-start=\"693\" data-end=\"704\">Result:<\/strong> Produces a <strong data-start=\"716\" data-end=\"755\">soft, ductile, and machinable steel<\/strong>.<\/p><\/li><\/ul><hr data-start=\"760\" data-end=\"763\" \/><h3 data-start=\"765\" data-end=\"794\"><strong data-start=\"769\" data-end=\"794\">2. Solution Treatment<\/strong><\/h3><ul data-start=\"795\" data-end=\"1054\"><li data-start=\"795\" data-end=\"856\"><p data-start=\"797\" data-end=\"856\"><strong data-start=\"797\" data-end=\"809\">Purpose:<\/strong> Dissolves precipitates to prepare for aging.<\/p><\/li><li data-start=\"857\" data-end=\"957\"><p data-start=\"859\" data-end=\"873\"><strong data-start=\"859\" data-end=\"871\">Process:<\/strong><\/p><ul data-start=\"876\" data-end=\"957\"><li data-start=\"876\" data-end=\"917\"><p data-start=\"878\" data-end=\"917\">Heat to <strong data-start=\"886\" data-end=\"914\">980\u20131020\u00b0C (1800\u20131870\u00b0F)<\/strong>.<\/p><\/li><li data-start=\"920\" data-end=\"957\"><p data-start=\"922\" data-end=\"957\">Quench rapidly in <strong data-start=\"940\" data-end=\"954\">air or oil<\/strong>.<\/p><\/li><\/ul><\/li><li data-start=\"958\" data-end=\"1054\"><p data-start=\"960\" data-end=\"1054\"><strong data-start=\"960\" data-end=\"971\">Result:<\/strong> Forms a <strong data-start=\"980\" data-end=\"1017\">homogeneous martensitic structure<\/strong> ready for precipitation hardening.<\/p><\/li><\/ul><hr data-start=\"1056\" data-end=\"1059\" \/><h3 data-start=\"1061\" data-end=\"1103\"><strong data-start=\"1065\" data-end=\"1103\">3. Precipitation Hardening (Aging)<\/strong><\/h3><ul data-start=\"1104\" data-end=\"1406\"><li data-start=\"1104\" data-end=\"1157\"><p data-start=\"1106\" data-end=\"1157\"><strong data-start=\"1106\" data-end=\"1118\">Purpose:<\/strong> Achieves high strength and hardness.<\/p><\/li><li data-start=\"1158\" data-end=\"1292\"><p data-start=\"1160\" data-end=\"1174\"><strong data-start=\"1160\" data-end=\"1172\">Process:<\/strong><\/p><ul data-start=\"1177\" data-end=\"1292\"><li data-start=\"1177\" data-end=\"1256\"><p data-start=\"1179\" data-end=\"1256\">Heat to <strong data-start=\"1187\" data-end=\"1212\">480\u2013500\u00b0C (900\u2013930\u00b0F)<\/strong> for 1\u20134 hours, depending on section size.<\/p><\/li><li data-start=\"1259\" data-end=\"1292\"><p data-start=\"1261\" data-end=\"1292\">Air cool to room temperature.<\/p><\/li><\/ul><\/li><li data-start=\"1293\" data-end=\"1406\"><p data-start=\"1295\" data-end=\"1406\"><strong data-start=\"1295\" data-end=\"1306\">Effect:<\/strong> Precipitates strengthen the martensitic matrix, producing <strong data-start=\"1365\" data-end=\"1403\">high tensile strength and hardness<\/strong>.<\/p><\/li><\/ul><hr data-start=\"1408\" data-end=\"1411\" \/><h3 data-start=\"1413\" data-end=\"1449\"><strong data-start=\"1417\" data-end=\"1449\">4. Effects of Heat Treatment<\/strong><\/h3><ul data-start=\"1450\" data-end=\"1711\"><li data-start=\"1450\" data-end=\"1522\"><p data-start=\"1452\" data-end=\"1522\"><strong data-start=\"1452\" data-end=\"1469\">Annealed 431:<\/strong> Soft, ductile, suitable for forming and machining.<\/p><\/li><li data-start=\"1523\" data-end=\"1597\"><p data-start=\"1525\" data-end=\"1597\"><strong data-start=\"1525\" data-end=\"1546\">Solution-treated:<\/strong> Prepares steel for aging with uniform structure.<\/p><\/li><li data-start=\"1598\" data-end=\"1711\"><p data-start=\"1600\" data-end=\"1711\"><strong data-start=\"1600\" data-end=\"1632\">Aged\/precipitation-hardened:<\/strong> High strength (~930\u20131000 MPa), high hardness, and good corrosion resistance.<\/p><\/li><\/ul><hr data-start=\"1713\" data-end=\"1716\" \/><h3 data-start=\"1718\" data-end=\"1772\"><strong data-start=\"1722\" data-end=\"1772\">5. Applications Benefiting from Heat Treatment<\/strong><\/h3><ul data-start=\"1773\" data-end=\"1981\"><li data-start=\"1773\" data-end=\"1818\"><p data-start=\"1775\" data-end=\"1818\">Automotive shafts, fasteners, and springs<\/p><\/li><li data-start=\"1819\" data-end=\"1843\"><p data-start=\"1821\" data-end=\"1843\">Aerospace components<\/p><\/li><li data-start=\"1844\" data-end=\"1889\"><p data-start=\"1846\" data-end=\"1889\">Industrial tools and precision components<\/p><\/li><li data-start=\"1890\" data-end=\"1981\"><p data-start=\"1892\" data-end=\"1981\">Components requiring a <strong data-start=\"1915\" data-end=\"1979\">combination of strength, toughness, and corrosion resistance<\/strong><\/p><\/li><\/ul><hr data-start=\"1983\" data-end=\"1986\" \/><h3 data-start=\"1988\" data-end=\"2010\"><strong data-start=\"1992\" data-end=\"2010\">6. Limitations<\/strong><\/h3><ul data-start=\"2011\" data-end=\"2233\"><li data-start=\"2011\" data-end=\"2061\"><p data-start=\"2013\" data-end=\"2061\">Overheating during aging can reduce toughness.<\/p><\/li><li data-start=\"2062\" data-end=\"2140\"><p data-start=\"2064\" data-end=\"2140\">Uneven heating or quenching may cause <strong data-start=\"2102\" data-end=\"2137\">distortion or residual stresses<\/strong>.<\/p><\/li><li data-start=\"2141\" data-end=\"2233\"><p data-start=\"2143\" data-end=\"2233\">Requires <strong data-start=\"2152\" data-end=\"2189\">controlled temperatures and times<\/strong> to achieve optimal mechanical properties.<\/p><\/li><\/ul><hr data-start=\"2235\" data-end=\"2238\" \/><h3 data-start=\"2240\" data-end=\"2255\"><strong data-start=\"2244\" data-end=\"2255\">Summary<\/strong><\/h3><p data-start=\"2256\" data-end=\"2617\">Heat treatment of 431 stainless steel involves <strong data-start=\"2303\" data-end=\"2365\">annealing, solution treatment, and precipitation hardening<\/strong> to achieve a balance of <strong data-start=\"2390\" data-end=\"2443\">high strength, hardness, and corrosion resistance<\/strong>. Proper control of temperature and time ensures that the steel meets the mechanical and functional requirements for <strong data-start=\"2560\" data-end=\"2614\">automotive, aerospace, and industrial applications<\/strong>.<\/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-1526\" 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-1526\" >\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-1526\" class=\"elementor-element elementor-element-5147e5f e-flex e-con-boxed e-con e-child\" data-id=\"5147e5f\" 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-7fcf486 elementor-widget elementor-widget-text-editor\" data-id=\"7fcf486\" 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 data-start=\"102\" data-end=\"147\"><strong data-start=\"105\" data-end=\"147\">Heat Resistance of 431 Stainless Steel<\/strong><\/h2><p data-start=\"149\" data-end=\"459\"><strong data-start=\"149\" data-end=\"172\">431 stainless steel<\/strong> is a <strong data-start=\"178\" data-end=\"233\">martensitic precipitation-hardening stainless steel<\/strong> known for its <strong data-start=\"248\" data-end=\"307\">high strength, good corrosion resistance, and toughness<\/strong>. Its heat resistance is <strong data-start=\"332\" data-end=\"344\">moderate<\/strong>, sufficient for many industrial applications but lower than that of austenitic stainless steels like 304 or 316.<\/p><hr data-start=\"461\" data-end=\"464\" \/><h3 data-start=\"466\" data-end=\"495\"><strong data-start=\"470\" data-end=\"495\">1. General Properties<\/strong><\/h3><ul data-start=\"496\" data-end=\"796\"><li data-start=\"496\" data-end=\"566\"><p data-start=\"498\" data-end=\"566\">Suitable for <strong data-start=\"511\" data-end=\"563\">intermittent service up to 425\u2013450\u00b0C (800\u2013840\u00b0F)<\/strong>.<\/p><\/li><li data-start=\"567\" data-end=\"674\"><p data-start=\"569\" data-end=\"674\">Continuous exposure to higher temperatures may lead to <strong data-start=\"624\" data-end=\"671\">softening and reduced mechanical properties<\/strong>.<\/p><\/li><li data-start=\"675\" data-end=\"796\"><p data-start=\"677\" data-end=\"796\">Exhibits <strong data-start=\"686\" data-end=\"715\">good oxidation resistance<\/strong> under moderate temperatures but may scale in prolonged high-heat environments.<\/p><\/li><\/ul><hr data-start=\"798\" data-end=\"801\" \/><h3 data-start=\"803\" data-end=\"841\"><strong data-start=\"807\" data-end=\"841\">2. Effects of High Temperature<\/strong><\/h3><ul data-start=\"842\" data-end=\"1161\"><li data-start=\"842\" data-end=\"940\"><p data-start=\"844\" data-end=\"940\"><strong data-start=\"844\" data-end=\"865\">Loss of hardness:<\/strong> Martensitic and aged structures may soften if exposed to excessive heat.<\/p><\/li><li data-start=\"941\" data-end=\"1036\"><p data-start=\"943\" data-end=\"1036\"><strong data-start=\"943\" data-end=\"985\">Reduced tensile strength and toughness<\/strong> when used continuously at elevated temperatures.<\/p><\/li><li data-start=\"1037\" data-end=\"1161\"><p data-start=\"1039\" data-end=\"1161\"><strong data-start=\"1039\" data-end=\"1065\">Oxidation and scaling:<\/strong> Occurs above recommended service temperatures, particularly in air or oxidizing environments.<\/p><\/li><\/ul><hr data-start=\"1163\" data-end=\"1166\" \/><h3 data-start=\"1168\" data-end=\"1203\"><strong data-start=\"1172\" data-end=\"1203\">3. Practical Considerations<\/strong><\/h3><ul data-start=\"1204\" data-end=\"1506\"><li data-start=\"1204\" data-end=\"1296\"><p data-start=\"1206\" data-end=\"1296\">Best used in <strong data-start=\"1219\" data-end=\"1293\">moderate-temperature industrial, automotive, or aerospace applications<\/strong>.<\/p><\/li><li data-start=\"1297\" data-end=\"1376\"><p data-start=\"1299\" data-end=\"1376\">Avoid continuous exposure to <strong data-start=\"1328\" data-end=\"1373\">high temperatures exceeding 425\u00b0C (800\u00b0F)<\/strong>.<\/p><\/li><li data-start=\"1377\" data-end=\"1506\"><p data-start=\"1379\" data-end=\"1506\">Heat-treated 431 retains strength better than annealed steel but is <strong data-start=\"1447\" data-end=\"1503\">not suitable for furnace or flame-exposed components<\/strong>.<\/p><\/li><\/ul><hr data-start=\"1508\" data-end=\"1511\" \/><h3 data-start=\"1513\" data-end=\"1568\"><strong data-start=\"1517\" data-end=\"1568\">4. Applications Benefiting from Heat Resistance<\/strong><\/h3><ul data-start=\"1569\" data-end=\"1842\"><li data-start=\"1569\" data-end=\"1635\"><p data-start=\"1571\" data-end=\"1635\">Automotive components such as <strong data-start=\"1601\" data-end=\"1633\">shafts, gears, and fasteners<\/strong><\/p><\/li><li data-start=\"1636\" data-end=\"1684\"><p data-start=\"1638\" data-end=\"1684\">Aerospace parts exposed to <strong data-start=\"1665\" data-end=\"1682\">moderate heat<\/strong><\/p><\/li><li data-start=\"1685\" data-end=\"1732\"><p data-start=\"1687\" data-end=\"1732\">Industrial valves and mechanical components<\/p><\/li><li data-start=\"1733\" data-end=\"1842\"><p data-start=\"1735\" data-end=\"1842\">Applications requiring a <strong data-start=\"1760\" data-end=\"1812\">combination of strength and corrosion resistance<\/strong> under moderate temperatures<\/p><\/li><\/ul><hr data-start=\"1844\" data-end=\"1847\" \/><h3 data-start=\"1849\" data-end=\"1871\"><strong data-start=\"1853\" data-end=\"1871\">5. Limitations<\/strong><\/h3><ul data-start=\"1872\" data-end=\"2163\"><li data-start=\"1872\" data-end=\"1950\"><p data-start=\"1874\" data-end=\"1950\">Not suitable for <strong data-start=\"1891\" data-end=\"1947\">continuous high-temperature applications above 450\u00b0C<\/strong>.<\/p><\/li><li data-start=\"1951\" data-end=\"2052\"><p data-start=\"1953\" data-end=\"2052\">Prolonged exposure to heat can lead to <strong data-start=\"1992\" data-end=\"2049\">softening, dimensional changes, and surface oxidation<\/strong>.<\/p><\/li><li data-start=\"2053\" data-end=\"2163\"><p data-start=\"2055\" data-end=\"2163\">Heat-treated 431 is preferred when mechanical properties at moderately elevated temperatures are critical.<\/p><\/li><\/ul><hr data-start=\"2165\" data-end=\"2168\" \/><h3 data-start=\"2170\" data-end=\"2185\"><strong data-start=\"2174\" data-end=\"2185\">Summary<\/strong><\/h3><p data-start=\"2186\" data-end=\"2567\">431 stainless steel offers <strong data-start=\"2213\" data-end=\"2241\">moderate heat resistance<\/strong>, capable of handling <strong data-start=\"2263\" data-end=\"2313\">intermittent temperatures up to ~425\u00b0C (800\u00b0F)<\/strong>. While it maintains <strong data-start=\"2334\" data-end=\"2382\">strength, hardness, and corrosion resistance<\/strong> at these levels, it is <strong data-start=\"2406\" data-end=\"2462\">not intended for continuous high-temperature service<\/strong>, making it suitable for <strong data-start=\"2487\" data-end=\"2539\">automotive, aerospace, and industrial components<\/strong> exposed to moderate heat.<\/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-1527\" 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-1527\" >\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-1527\" class=\"elementor-element elementor-element-2527501 e-flex e-con-boxed e-con e-child\" data-id=\"2527501\" 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-396e2ac elementor-widget elementor-widget-text-editor\" data-id=\"396e2ac\" 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 data-start=\"98\" data-end=\"139\"><strong data-start=\"101\" data-end=\"139\">Hot Working of 431 Stainless Steel<\/strong><\/h2><p data-start=\"141\" data-end=\"454\"><strong data-start=\"141\" data-end=\"164\">431 stainless steel<\/strong> is a <strong data-start=\"170\" data-end=\"225\">martensitic precipitation-hardening stainless steel<\/strong> known for its <strong data-start=\"240\" data-end=\"299\">high strength, good corrosion resistance, and toughness<\/strong>. Hot working is generally performed in the <strong data-start=\"343\" data-end=\"385\">annealed or solution-treated condition<\/strong> to enable shaping while avoiding cracking and excessive hardening.<\/p><hr data-start=\"456\" data-end=\"459\" \/><h3 data-start=\"461\" data-end=\"490\"><strong data-start=\"465\" data-end=\"490\">1. General Guidelines<\/strong><\/h3><ul data-start=\"491\" data-end=\"717\"><li data-start=\"491\" data-end=\"549\"><p data-start=\"493\" data-end=\"549\">Hot working temperature: <strong data-start=\"518\" data-end=\"546\">900\u20131050\u00b0C (1650\u20131920\u00b0F)<\/strong>.<\/p><\/li><li data-start=\"550\" data-end=\"641\"><p data-start=\"552\" data-end=\"641\">Steel should be in the <strong data-start=\"575\" data-end=\"617\">annealed or solution-treated condition<\/strong> prior to hot working.<\/p><\/li><li data-start=\"642\" data-end=\"717\"><p data-start=\"644\" data-end=\"717\">Avoid overheating to prevent <strong data-start=\"673\" data-end=\"689\">grain growth<\/strong>, which reduces toughness.<\/p><\/li><\/ul><hr data-start=\"719\" data-end=\"722\" \/><h3 data-start=\"724\" data-end=\"763\"><strong data-start=\"728\" data-end=\"763\">2. Common Hot Working Processes<\/strong><\/h3><ul data-start=\"764\" data-end=\"965\"><li data-start=\"764\" data-end=\"819\"><p data-start=\"766\" data-end=\"819\"><strong data-start=\"766\" data-end=\"782\">Hot rolling:<\/strong> Produces bars, plates, and sheets.<\/p><\/li><li data-start=\"820\" data-end=\"898\"><p data-start=\"822\" data-end=\"898\"><strong data-start=\"822\" data-end=\"838\">Hot forging:<\/strong> Shapes shafts, blades, or other high-strength components.<\/p><\/li><li data-start=\"899\" data-end=\"965\"><p data-start=\"901\" data-end=\"965\"><strong data-start=\"901\" data-end=\"919\">Hot extrusion:<\/strong> Forms complex profiles and precision parts.<\/p><\/li><\/ul><hr data-start=\"967\" data-end=\"970\" \/><h3 data-start=\"972\" data-end=\"1008\"><strong data-start=\"976\" data-end=\"1008\">3. Advantages of Hot Working<\/strong><\/h3><ul data-start=\"1009\" data-end=\"1266\"><li data-start=\"1009\" data-end=\"1086\"><p data-start=\"1011\" data-end=\"1086\">Reduces <strong data-start=\"1019\" data-end=\"1056\">strength and hardness temporarily<\/strong>, making deformation easier.<\/p><\/li><li data-start=\"1087\" data-end=\"1160\"><p data-start=\"1089\" data-end=\"1160\">Minimizes <strong data-start=\"1099\" data-end=\"1132\">brittleness and cracking risk<\/strong> compared to cold working.<\/p><\/li><li data-start=\"1161\" data-end=\"1266\"><p data-start=\"1163\" data-end=\"1266\">Promotes <strong data-start=\"1172\" data-end=\"1198\">uniform microstructure<\/strong> and better mechanical properties after subsequent heat treatment.<\/p><\/li><\/ul><hr data-start=\"1268\" data-end=\"1271\" \/><h3 data-start=\"1273\" data-end=\"1315\"><strong data-start=\"1277\" data-end=\"1315\">4. Post-Hot Working Considerations<\/strong><\/h3><ul data-start=\"1316\" data-end=\"1585\"><li data-start=\"1316\" data-end=\"1400\"><p data-start=\"1318\" data-end=\"1400\"><strong data-start=\"1318\" data-end=\"1353\">Annealing or solution treatment<\/strong> may be applied to relieve internal stresses.<\/p><\/li><li data-start=\"1401\" data-end=\"1469\"><p data-start=\"1403\" data-end=\"1469\"><strong data-start=\"1403\" data-end=\"1416\">Machining<\/strong> is easier after hot working in the annealed state.<\/p><\/li><li data-start=\"1470\" data-end=\"1585\"><p data-start=\"1472\" data-end=\"1585\">Final <strong data-start=\"1478\" data-end=\"1513\">precipitation hardening (aging)<\/strong> is performed after shaping to achieve <strong data-start=\"1552\" data-end=\"1582\">high strength and hardness<\/strong>.<\/p><\/li><\/ul><hr data-start=\"1587\" data-end=\"1590\" \/><h3 data-start=\"1592\" data-end=\"1614\"><strong data-start=\"1596\" data-end=\"1614\">5. Limitations<\/strong><\/h3><ul data-start=\"1615\" data-end=\"1867\"><li data-start=\"1615\" data-end=\"1696\"><p data-start=\"1617\" data-end=\"1696\">High-carbon content limits ductility compared to austenitic stainless steels.<\/p><\/li><li data-start=\"1697\" data-end=\"1793\"><p data-start=\"1699\" data-end=\"1793\">Requires careful <strong data-start=\"1716\" data-end=\"1739\">temperature control<\/strong> to avoid surface oxidation, scaling, or distortion.<\/p><\/li><li data-start=\"1794\" data-end=\"1867\"><p data-start=\"1796\" data-end=\"1867\">Hot working in the hardened or aged condition is <strong data-start=\"1845\" data-end=\"1864\">not recommended<\/strong>.<\/p><\/li><\/ul><hr data-start=\"1869\" data-end=\"1872\" \/><h3 data-start=\"1874\" data-end=\"1925\"><strong data-start=\"1878\" data-end=\"1925\">6. Applications Benefiting from Hot Working<\/strong><\/h3><ul data-start=\"1926\" data-end=\"2128\"><li data-start=\"1926\" data-end=\"1971\"><p data-start=\"1928\" data-end=\"1971\">Automotive components (shafts, fasteners)<\/p><\/li><li data-start=\"1972\" data-end=\"1994\"><p data-start=\"1974\" data-end=\"1994\">Aerospace hardware<\/p><\/li><li data-start=\"1995\" data-end=\"2054\"><p data-start=\"1997\" data-end=\"2054\">High-strength industrial tools and precision components<\/p><\/li><li data-start=\"2055\" data-end=\"2128\"><p data-start=\"2057\" data-end=\"2128\">Components that require <strong data-start=\"2081\" data-end=\"2126\">final heat treatment for maximum strength<\/strong><\/p><\/li><\/ul><hr data-start=\"2130\" data-end=\"2133\" \/><h3 data-start=\"2135\" data-end=\"2150\"><strong data-start=\"2139\" data-end=\"2150\">Summary<\/strong><\/h3><p data-start=\"2151\" data-end=\"2680\">Hot working of 431 stainless steel is performed in the <strong data-start=\"2206\" data-end=\"2248\">annealed or solution-treated condition<\/strong> at <strong data-start=\"2252\" data-end=\"2280\">900\u20131050\u00b0C (1650\u20131920\u00b0F)<\/strong>. This process allows <strong data-start=\"2302\" data-end=\"2337\">rolling, forging, and extrusion<\/strong> while minimizing brittleness and promoting a uniform microstructure. After hot working, <strong data-start=\"2426\" data-end=\"2483\">stress relief, machining, and precipitation hardening<\/strong> are applied to achieve the desired <strong data-start=\"2519\" data-end=\"2567\">strength, hardness, and corrosion resistance<\/strong>, making 431 stainless steel suitable for <strong data-start=\"2609\" data-end=\"2677\">automotive, aerospace, and high-strength industrial applications<\/strong>.<\/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\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Stainless Steel, Martensitic 431 Stainless Steel (S43100) Bar A high chromium, low nickel high hardenability martensitic stainless steel. 431 stainless steel is a martensitic precipitation-hardening stainless steel known for its high strength, good corrosion resistance, and excellent mechanical properties. It is a versatile alloy widely used in applications requiring a combination of strength, toughness, and moderate corrosion resistance. 1.4057 (Type 431) is a hardenable martensitic stainless steel alloy which combines high tensile strength and torsional strength. The material is well suited to shaft manufacture due to these characteristics. Of all the stainless steels, 1.4057 it has one of the best combinations of high strength, corrosion resistance, and good impact toughness. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2559,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-2558","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-commercial-stainless-steel-alloys"],"_links":{"self":[{"href":"https:\/\/zhss.org\/ja\/wp-json\/wp\/v2\/posts\/2558","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zhss.org\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zhss.org\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zhss.org\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zhss.org\/ja\/wp-json\/wp\/v2\/comments?post=2558"}],"version-history":[{"count":0,"href":"https:\/\/zhss.org\/ja\/wp-json\/wp\/v2\/posts\/2558\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zhss.org\/ja\/wp-json\/wp\/v2\/media\/2559"}],"wp:attachment":[{"href":"https:\/\/zhss.org\/ja\/wp-json\/wp\/v2\/media?parent=2558"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zhss.org\/ja\/wp-json\/wp\/v2\/categories?post=2558"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zhss.org\/ja\/wp-json\/wp\/v2\/tags?post=2558"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}