{"id":2568,"date":"2025-11-14T06:55:33","date_gmt":"2025-11-14T06:55:33","guid":{"rendered":"https:\/\/zhss.org\/?p=2568"},"modified":"2025-12-17T11:27:24","modified_gmt":"2025-12-17T03:27:24","slug":"440c-stainless-steel-s44004-bar","status":"publish","type":"post","link":"https:\/\/zhss.org\/tr\/metals\/stainless-steel\/commercial-stainless-steel-alloys\/440c-stainless-steel-s44004-bar\/","title":{"rendered":"440C Stainless Steel (S44004) 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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440C Stainless Steel (S44004) Bar<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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A martensitic stainless steel with the highest carbon content in the 400 series.\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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440C stainless steel<\/a> is a member of the 400 series of stainless steels. It has the highest carbon content among them. It is capable of attaining, after heat treatment, the highest strength, hardness and wear resistance of all the stainless alloys. Its very high carbon content is responsible for these characteristics, which make 440C particularly suited to such applications as ball bearings and valve parts.<\/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.<\/p>

440C stainless steel is a high-carbon martensitic stainless steel known for its excellent hardness, superior wear resistance, and moderate corrosion resistance. It is the highest carbon content stainless steel in the 440 series, making it ideal for applications requiring high strength and edge retention.<\/p>

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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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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440C 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 440C <\/td>\n <\/tr>\n
\n UNS <\/td>\n \n International <\/td>\n \n S44004 <\/td>\n <\/tr>\n
\n EN \/ W.Nr. <\/td>\n \n Europe <\/td>\n \n 1.4125 <\/td>\n <\/tr>\n
\n EN Name <\/td>\n \n Europe <\/td>\n \n X105CrMo17 <\/td>\n <\/tr>\n
\n ASTM A276 <\/td>\n \n USA <\/td>\n \n 440C (bars, shapes) <\/td>\n <\/tr>\n
\n ASTM A314 <\/td>\n \n USA <\/td>\n \n 440C (forged bars) <\/td>\n <\/tr>\n
\n JIS <\/td>\n \n Japan <\/td>\n \n SUS440C <\/td>\n <\/tr>\n
\n GB (common usage) <\/td>\n \n China <\/td>\n \n 9Cr18Mo <\/td>\n <\/tr>\n
\n GOST <\/td>\n \n Russia <\/td>\n \n 95X18 (95\u042518) <\/td>\n <\/tr>\n <\/table>\n<\/div>