{"id":2551,"date":"2025-11-14T05:23:16","date_gmt":"2025-11-14T05:23:16","guid":{"rendered":"https:\/\/zhss.org\/?p=2551"},"modified":"2025-12-17T11:28:19","modified_gmt":"2025-12-17T03:28:19","slug":"420-stainless-steel-s42000-bar","status":"publish","type":"post","link":"https:\/\/zhss.org\/it\/metals\/stainless-steel\/commercial-stainless-steel-alloys\/420-stainless-steel-s42000-bar\/","title":{"rendered":"420 Stainless Steel (S42000) Bar"},"content":{"rendered":"\t\t
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Stainless Steel, Martensitic\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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420 Stainless Steel (S42000) Bar\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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A martensitic machining bar with machinability enhanced through the addition of sulphur.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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As with most other free-machining stainless steels the improvement in machinability is achieved by addition of sulphur which forms manganese sulphide inclusions; this sulphur addition also lowers the corrosion resistance, weldability and formability to below that of its non-free machining equivalent Grade 410<\/a>.<\/p>

420 stainless steel<\/a> is a high-carbon martensitic stainless steel known for its high hardness, good wear resistance, and moderate corrosion resistance. It is commonly used in applications that require cutting edges, wear resistance, and the ability to be hardened.<\/p>

Martensitic stainless steels are optimised for high hardness, and other properties are to some degree compromised. Fabrication must be by methods that allow for poor weldability and usually also allow for a final harden and temper heat treatment. Corrosion resistance is lower than the common austenitic grades, and their useful operating temperature range is limited by their loss of ductility at sub-zero temperatures and loss of strength by over-tempering at elevated temperatures.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t

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Range Enquiry\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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PLEASE NOTE<\/strong><\/span><\/p>

If you do not see what you are looking for, please contact your\u00a0local service centre<\/a>\u00a0<\/span>with your specific requirements.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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420 Stainless Steel Related Specifications\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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\n System \/ Standard <\/td>\n \n Country \/ Region <\/td>\n \n Grade \/ Designation <\/td>\n <\/tr>\n
\n AISI <\/td>\n \n USA <\/td>\n \n 420 <\/td>\n <\/tr>\n
\n UNS <\/td>\n \n International <\/td>\n \n S42000 <\/td>\n <\/tr>\n
\n EN \/ W.Nr. <\/td>\n \n Europe <\/td>\n \n 1.4021 <\/td>\n <\/tr>\n
\n EN Name <\/td>\n \n Europe <\/td>\n \n X20Cr13 <\/td>\n <\/tr>\n
\n ASTM A276 <\/td>\n \n USA <\/td>\n \n Type 420 (bars, shapes) <\/td>\n <\/tr>\n
\n ASTM A314 <\/td>\n \n USA <\/td>\n \n Type 420 (forged\/rolled bars) <\/td>\n <\/tr>\n
\n ASTM A743 <\/td>\n \n USA <\/td>\n \n CA-40 (cast 420-type) <\/td>\n <\/tr>\n
\n GB <\/td>\n \n China <\/td>\n \n 2Cr13 <\/td>\n <\/tr>\n
\n JIS <\/td>\n \n Japan <\/td>\n \n SUS420J1 \/ SUS420J2 <\/td>\n <\/tr>\n
\n BS <\/td>\n \n UK <\/td>\n \n 420S37 \/ 420S45 <\/td>\n <\/tr>\n <\/table>\n<\/div>