Chemical Composition Base Element Fe (Iron) C (Carbon) 0.27 to 0.34 % Cr (Chromium) 0.3 % (maximum) Cu (Copper) 0.3 % (maximum) Fe (Iron) 96.4 to 98.2 % (estimate) Mn (Manganese) 1.4 to 1.8 % Mo (Molybdenum) 0.15 % (maximum) Ni (Nickel) 0.3 % (maximum) P (Phosphorus) 0.035 % (maximum) S (Sulfur) 0.035 % (maximum) Si (Silicon) 0.17 to 0.37 % 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 635 MPa (minimum) Ultimate Tensile Strength 785 MPa (minimum) Elongation 12 % strain (minimum) Other Information Material Class Ferrous Alloy Alloy Family Carbon Steel Alloy Group Medium-carbon steel Alloy Sub-Group 1330/1330H Country China Standards Body SAC (China) Description Bar 25 mm diameter; HR; QT Designation 30Mn2 Specification Type Standard Specification GB/T 3077 Specification Year 1999 Specification Status Active Specification Status Notes Active in 2005 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 China State Bureau of Quality and Technical Supervision (CSBTS) (GB/JB/YB)
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Chemical Composition