What is 440C Stainless Steel? It has been used primarily as a bearing steel, and is used in the hardened plus tempered condition. It shows great resistance to wear and abrasion. It has high strength, moderate corrosion resistance, and good hardness and wear resistance. Stainless Steel 440C is a high carbon chromium stainless steel. When customers call us about 440C, sometimes we also hear about anxiety managing their cash flow. The chemical composition of grade 440C stainless steel is outlined in the following table. Stainless Steel 440C in bar SPECIFICATIONS: GRADE STAINLESS STEEL 440C, AISI 440C, UNS S44004 Castle Metals provides Stainless 440C in bars throughout our distribution network, which spans the United States, Mexico, Canada, France, U.K, Singapore, and Shanghai. 440C Stainless Knife Steel is the high-end of the 440 stainless steels. It has great corrosion resistance when hardened. Being harder than the others, keeping a sharper edge much longer than standard 440A or 440B stainless steels. It is used for rolling element bearings, valve … ASTM A276 standard grade 440c stainless steel is a high carbon martensitic stainless steel, which is generally supplied in the annealed condition with a maximum Brinell hardness of 269 (Rc29) or annealed and cold drawn with a maximum Brinell hardness of 285 (Rc31). It is magnetic in all conditions and yields the highest hardnesses of hardenable stainless steels. Chemical Composition. Grade 440C stainless steel is a high carbon martensitic stainless steel. 440C stainless steel from Alro Steel is a high-carbon, chromium steel designed to provide stainless properties with maximum hardness. The following datasheet gives an overview of grade 440C stainless steel.