Chemical Composition Base Element Fe (Iron) C (Carbon) 0.23 % (maximum) Cr (Chromium) 0.3 % (maximum) Cu (Copper) 0.3 % (maximum) Fe (Iron) 90.5 to 93.4 % (estimate) Mn (Manganese) 0.5 to 0.8 % Mo (Molybdenum) 3.1 to 3.7 % Ni (Nickel) 2.9 to 3.5 % P (Phosphorus) 0.025 % (maximum) S (Sulfur) 0.025 % (maximum) Si (Silicon) 0.1 to 0.4 % V (Vanadium) 0.1 % (maximum) W (Tungsten) 0.1 % (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 Yield Strength 4.8e6 lbf/ft^2 Ultimate Tensile Strength 9.4e6 to 1.25e7 lbf/ft^2 Elongation 18 % strain Brinell Hardness 135 to 180 Other Information Material Class Ferrous Alloy Alloy Family High-Alloy Steel (Corrosion and Heat Resistant, Stainless, and Nickel Steels) Alloy Group Miscellaneous or unclassified Alloy Sub-Group Miscellaneous high-alloy steel Country France Standards Body AFNOR (France) Description t<1000 mm Designation 20N12M Specification Type Standard Specification AFNOR NF A32-055 Specification Year 1985 Specification Status Active Specification Status Notes withdrawn Source Worldwide Guide to Equivalent Irons and Steels, 5th ed.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 Association Francaise de Normalisation (AFNOR) (French Association for Standardization)
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Chemical Composition

Base Element

Fe (Iron)