Chemical Composition Base Element Fe (Iron) C (Carbon) 0.7 to 0.78 % Cr (Chromium) 3.8 to 4.5 % Fe (Iron) 73.5 to 77 % (estimate) Mn (Manganese) 0.4 % (maximum) Mo (Molybdenum) 0.6 % (maximum) P (Phosphorus) 0.03 % (maximum) S (Sulfur) 0.03 % (maximum) Si (Silicon) 0.45 % (maximum) V (Vanadium) 1 to 1.2 % W (Tungsten) 17.5 to 18.5 % 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. Other Information Material Class Ferrous Alloy Alloy Family Tool Steel Alloy Group High-speed tool steel Alloy Sub-Group Tungsten high-speed steel Country Germany Standards Body DIN (Germany) Description Bearing Designation 1.3558 Specification Type Standard Specification DIN 17230 Specification Year 1980 Specification Status Active 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