Chemical Composition Base Element Fe (Iron) C (Carbon) 1.2 to 1.35 % Co (Cobalt) 11.3 to 12.3 % Cr (Chromium) 3.5 to 4.5 % Cu (Copper) 0.3 % (maximum) Fe (Iron) 62.5 to 68.3 % (estimate) Mn (Manganese) 0.4 % (maximum) Mo (Molybdenum) 6 to 6.5 % Ni (Nickel) 0.4 % (maximum) P (Phosphorus) 0.03 % (maximum) S (Sulfur) 0.03 % (maximum) Si (Silicon) 0.5 % (maximum) V (Vanadium) 3 to 3.5 % W (Tungsten) 6.75 to 7.75 % 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 295 (maximum) Other Information Material Class Ferrous Alloy Alloy Family Tool Steel Alloy Group High-speed tool steel Alloy Sub-Group Molybdenum high-speed steel Country France Standards Body AFNOR (France) Description Soft ann Designation HS7-6-3-12 Specification Type Standard Specification AFNOR NF A35-590 Specification Year 1992 Specification Status Active Specification Status Notes withdrawn Source Worldwide Guide to Equivalent Irons and Steels, 5th ed.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