Chemical Composition Base Element Fe (Iron) Al (Aluminum) 0.04 % (maximum) C (Carbon) 0.08 to 0.12 % Cr (Chromium) 8 to 9.5 % Fe (Iron) 87.3 to 90.3 % (estimate) Mn (Manganese) 0.3 to 0.6 % Mo (Molybdenum) 0.85 to 1.05 % N (Nitrogen) 0.03 to 0.07 % Nb (Niobium) 0.06 to 0.1 % Ni (Nickel) 0.4 % (maximum) P (Phosphorus) 0.03 % (maximum) S (Sulfur) 0.01 % (maximum) Si (Silicon) 0.2 to 0.5 % V (Vanadium) 0.18 to 0.25 % 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 415 MPa (minimum) Ultimate Tensile Strength 585 to 760 MPa Elongation 18 % strain (minimum) 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 CA-15/ CA-40 grades Country USA Standards Body ASTM (USA) Description Martensitic stainless and alloy castings for pressure-containing parts for high-temp and corrosive service Designation C12A Specification Type Standard Specification ASTM A217/A217M 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 Casting 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)