Chemical Composition Base Element Fe (Iron) C (Carbon) 1.4 to 1.55 % Co (Cobalt) 4.7 to 5.2 % Cr (Chromium) 3.8 to 4.8 % Fe (Iron) 68 to 73.2 % (estimate) Mn (Manganese) 0.4 % (maximum) Mo (Molybdenum) 0.7 to 1 % P (Phosphorus) 0.03 % (maximum) S (Sulfur) 0.03 % (maximum) Si (Silicon) 0.45 % (maximum) V (Vanadium) 4.75 to 5.55 % W (Tungsten) 11.5 to 13 % 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 Spain Standards Body AENOR (Spain) Designation 12-1-5-5 Specification Type Standard Specification UNE 36073 Specification Year 1975 Specification Status Obsolete Specification Status Notes cancelled 1994 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 Asociacion Espanola de Normalizacion y Certificacion (AENOR) (Spanish Association for Standardization and Certification) (UNE)
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Chemical Composition