Chemical Composition Base Element Fe (Iron) C (Carbon) 0.37 to 0.44 % Fe (Iron) 98.3 to 99 % (estimate) Mn (Manganese) 0.5 to 0.8 % P (Phosphorus) 0.035 % (maximum) S (Sulfur) 0.02 to 0.04 % Si (Silicon) 0.1 to 0.4 % 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 5.43e6 lbf/ft^2 (minimum) Ultimate Tensile Strength 1.11e7 lbf/ft^2 (minimum) Elongation 4 % strain (minimum) Brinell Hardness 197 (minimum) Other Information Material Class Ferrous Alloy Alloy Family Carbon Steel Alloy Group Medium-carbon steel Alloy Sub-Group 1040 Country International Standards Body ISO (International) Description Wrought unalloyed direct-hardening steels for mechanical purposes; CD, mech props vary with thickness and treatment Designation C40M2 Specification Type Standard Specification ISO 683-18 Specification Year 1996 Specification Status Active Specification Status Notes active 1996 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 International Organization for Standardization (ISO)
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Chemical Composition