Chemical Composition Base Element Fe (Iron) As (Arsenic) 0.04 % (maximum) C (Carbon) 0.95 to 1.05 % Cr (Chromium) 0.9 to 2.2 % Cu (Copper) 0.25 % (maximum) Fe (Iron) 91.9 to 96.3 % (estimate) Mn (Manganese) 1 to 2.2 % Mo (Molybdenum) 0.9 to 1.4 % Ni (Nickel) 0.3 % (maximum) P (Phosphorus) 0.03 % (maximum) S (Sulfur) 0.03 % (maximum) Sb (Antimony) 0.04 % (maximum) Si (Silicon) 0.5 % (maximum) Sn (Tin) 0.04 % (maximum) 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 Cold-work tool steel Alloy Sub-Group Air-hardening medium-alloy cold-work steel Country Mexico Standards Body NMX (Mexico) Description Bar Designation A4 Specification Type Standard Specification NMX-B-082 Specification Year 1990 Specification Status Active Specification Status Notes 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 Direccion General de Normas (DGN) (General Directorate of Standards) (NMX/NOM/DGN)
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Chemical Composition