Chemical Composition Base Element Fe (Iron) Al (Aluminum) 0.025 % (maximum) C (Carbon) 0.2 to 0.25 % Co (Cobalt) 0.2 % (maximum) Cr (Chromium) 11 to 12.5 % Cu (Copper) 0.5 % (maximum) Fe (Iron) 81.1 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) 0.01 % (maximum) Si (Silicon) 0.5 % (maximum) Sn (Tin) 0.02 % (maximum) Ti (Titanium) 0.025 % (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 Brinell Hardness 248 (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 Martensitic Cr stainless forgings, forged bar, and forging stock for high-temp service; ann hardness. Designation Grade D Class 3 Specification Type Standard Specification ASTM A1021 Specification Year 2002 Specification Status Active Specification Status Notes active 2002 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)