Supply 30Mn2 Structural Steel
Chemical Composition: Carbon C: 0.27 ~ 0.34 ,Si Si: 0.17 ~ 0.37 ,Manganese Mn: 1.40 ~ 1.80 ,S S: to allow the residual content of ≤ 0.35 ,P P: to allow the residual content of ≤ 0.35 ,Chromium Cr: ≤ 0.30 to allow the residual content ,Ni-Ni: ≤ 0.30 to allow the residual content ,Copper Cu: ≤ 0.30 to allow the residual content
Mechanical Properties:
Tensile strength σb (MPa): ≥ 785 (80)
Yield strength σs (MPa): ≥ 635 (65)
Elongation δ5 (%): ≥ 12
Reduction of area ψ (%): ≥ 45
Impact energy Akv (J): ≥ 63
Impact toughness αkv (J/cm2): ≥ 78 (8)
Hardness: ≤ 207HB
Sample size: Sample size is 25mm rough
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