Chemical Composition Base Element Fe (Iron) B (Boron) 0.0003 % (maximum) C (Carbon) 1.25 to 1.9 % Cr (Chromium) 0.3 % (maximum) Cu (Copper) 0.25 % (maximum) Fe (Iron) 96.4 to 98.5 % (estimate) Mn (Manganese) 0.2 to 0.35 % Mo (Molybdenum) 0.05 % (maximum) Ni (Nickel) 0.3 % (maximum) P (Phosphorus) 0.03 % (maximum) S (Sulfur) 0.03 % (maximum) Si (Silicon) 0.1 to 0.3 % Sn (Tin) 0.05 % (maximum) V (Vanadium) 0.05 % (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. Mechanical Properties Vickers Hardness 269 HV (maximum) Other Information Material Class Ferrous Alloy Alloy Family Tool Steel Alloy Group Mold steel and special-purpose tool steel Alloy Sub-Group Water-hardening type steel Country India Standards Body BIS (India) Description Tool steel forgings for cold metal forming operations; ann hardness. Designation T158 Specification Type Standard Specification IS 13387 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