Chemical Composition Base Element Fe (Iron) Al (Aluminum) 0.05 % (maximum) C (Carbon) 0.2 to 0.25 % Co (Cobalt) 0.25 % (maximum) Cr (Chromium) 11 to 12.5 % Fe (Iron) 81.5 to 85.8 % (estimate) Mn (Manganese) 0.5 to 1 % Mo (Molybdenum) 0.9 to 1.25 % Ni (Nickel) 0.5 to 1 % P (Phosphorus) 0.025 % (maximum) S (Sulfur) 0.025 % (maximum) Si (Silicon) 0.5 % (maximum) Sn (Tin) 0.04 % (maximum) Ti (Titanium) 0.05 % (maximum) V (Vanadium) 0.2 to 0.3 % W (Tungsten) 0.9 to 1.25 % 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 Yield Strength 965 10^7 dyne/cm^2 (minimum) Ultimate Tensile Strength 1210 10^7 dyne/cm^2 (minimum) Elongation 10 % strain (minimum) Brinell Hardness 255 (maximum) Other Information Material Class Ferrous Alloy Alloy Family High-Alloy Steel (Corrosion and Heat Resistant, Stainless, and Nickel Steels) Alloy Group Martensitic stainless steel Alloy Sub-Group Miscellaneous martensitic steel Country USA Standards Body ASTM (USA) Description Forged martensitic stainless shapes for highly stressed structural members; YS>965, ann hardness Designation 52 Specification Type Standard Specification ASTM A579 Specification Year 2004 Specification Status Active Specification Status Notes active 2004 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 American Society for Testing and Materials (ASTM)
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Chemical Composition

Base Element

Fe (Iron)