Chemical Composition Base Element Fe (Iron) C (Carbon) 0.88 to 0.96 % Co (Cobalt) 4.5 to 5 % Cr (Chromium) 3.8 to 4.5 % Fe (Iron) 74.6 to 78.4 % (estimate) Mn (Manganese) 0.4 % (maximum) Mo (Molybdenum) 4.7 to 5.2 % P (Phosphorus) 0.03 % (maximum) S (Sulfur) 0.06 to 0.15 % Si (Silicon) 0.45 % (maximum) V (Vanadium) 1.7 to 2 % W (Tungsten) 6 to 6.7 % 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 Rockwell Hardness C scale 64 Other Information Material Class Ferrous Alloy Alloy Family Tool Steel Alloy Group High-speed tool steel Alloy Sub-Group Molybdenum high-speed steel Country Germany Standards Body DIN (Germany) Description As tempered 540C. Designation HS-6-5-2-5S Specification Type Standard Specification DIN 17350 Specification Year 1983 Specification Status Obsolete Specification Status Notes withdrawn Source Worldwide Guide to Equivalent Irons and Steels, 5th ed.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 Deutsches Institut fur Normung e.V. (DIN) (German Standardization Institute)
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Chemical Composition