Chemical Composition Base Element Fe (Iron) C (Carbon) 0.85 to 0.95 % Co (Cobalt) 4.75 to 5.25 % Cr (Chromium) 3.75 to 4.5 % Cu (Copper) 0.2 % (maximum) Fe (Iron) 73.3 to 78.1 % (estimate) Mn (Manganese) 0.2 to 0.4 % Mo (Molybdenum) 4.75 to 5.5 % Ni (Nickel) 0.4 % (maximum) P (Phosphorus) 0.03 % (maximum) S (Sulfur) 0.03 % (maximum) Si (Silicon) 0.15 to 0.4 % Sn (Tin) 0.05 % (maximum) V (Vanadium) 1.7 to 2.2 % W (Tungsten) 5.75 to 6.75 % 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 269 (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 India Standards Body BIS (India) Description High speed tool steels; ann condition. Designation XT90W6CoMo5Cr4V2 Specification Type Standard Specification IS 7291 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 Wrought Similar Alloys Click here to find similar alloys Links Organizations Bureau of Indian Standards (BIS)
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Chemical Composition