Chemical Composition Base Element Fe (Iron) C (Carbon) 0.15 % (maximum) Cr (Chromium) 16 to 18 % Fe (Iron) 67.5 to 75 % (estimate) Mn (Manganese) 5.5 to 7.5 % N (Nitrogen) 0.05 to 0.25 % Ni (Nickel) 3.5 to 5.5 % P (Phosphorus) 0.045 % (maximum) S (Sulfur) 0.03 % (maximum) Si (Silicon) 1 % (maximum) Composition Note Fe is listed as a Base element for this material, but its % value is not listed in the specification. The value shown is a calculated one. Mechanical Properties Vickers Hardness 5.12e7 to 1.02e8 lbf/ft^2 Notes on Mechanical Properties 50 mm gauge Other Information Material Class Ferrous Alloy Alloy Family High-Alloy Steel (Corrosion and Heat Resistant, Stainless, and Nickel Steels) Alloy Group Austenitic stainless steel Alloy Sub-Group 201 grades Country International Standards Body ISO (International) Description CR narrow strip austenitic stainless for the production of springs and spring parts; CR hardness. Designation X12CrMnNiN17-7-5 Specification Type Standard Specification ISO 6931-2 Specification Year 2005 Specification Status Active Specification Status Notes active 2005 Source Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006 Available forms Wrought Similar Alloys Click here to find similar alloys Links Organizations International Organization for Standardization (ISO)
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Chemical Composition