Chemical Composition Base Element Fe (Iron) C (Carbon) 0.35 to 0.45 % Fe (Iron) 97.4 to 98.3 % (estimate) Mn (Manganese) 1.3 to 1.7 % P (Phosphorus) 0.035 % (maximum) S (Sulfur) 0.08 to 0.15 % Si (Silicon) 0.25 % (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 Yield Strength 500 MPa (minimum) Ultimate Tensile Strength 700 to 850 MPa Elongation 18 % strain (minimum) Rockwell Hardness C scale 53 (minimum) Other Information Material Class Ferrous Alloy Alloy Family Alloy Steel Alloy Group Manganese steel Alloy Sub-Group Manganese steel Country India Standards Body BIS (India) Description Alloy steel for flame and induction hardening; hardened and tempered. Designation 40Mn15S12 Specification Type Standard Specification IS 3930 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