Chemical Composition Base Element Fe (Iron) C (Carbon) 0.3 to 0.6 % Co (Cobalt) 48 to 52 % Cr (Chromium) 25 to 30 % Fe (Iron) 20 % (maximum) Mn (Manganese) 1 % (maximum) Mo (Molybdenum) 0.15 % (maximum) Nb (Niobium) 2 % (maximum) Ni (Nickel) 3 % (maximum) P (Phosphorus) 0.02 % (maximum) S (Sulfur) 0.02 % (maximum) Si (Silicon) 1 % (maximum) Composition Note Class II Mechanical Properties Yield Strength 350 MPa Ultimate Tensile Strength 540 MPa Elongation 3 % strain Brinell Hardness 200 (maximum) 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 28 mm Designation KC30Fe20M Specification Type Standard Specification AFNOR NF A32-057 Specification Year 1981 Specification Status Active Specification Status Notes withdrawn Source Worldwide Guide to Equivalent Irons and Steels, 5th ed.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