Product Details
Chemical Composition: Carbon C: 0.12 ~ 0.18 ,Si Si: 0.17 ~ 0.37 ,Manganese Mn: 0.40 ~ 0.70 ,S S: to allow the residual content ≤ 0.035 ,P P: ≤ 0.035 to allow the residual content ,Chromium Cr: 0.80 ~ 1.10
,Ni-Ni: ≤ 0.030 to allow the residual content ,Copper Cu: ≤ 0.030 to allow the residual content ,Mo Mo: 0.40 ~ 0.55
Mechanical Properties:
Tensile strength σb (MPa): ≥ 440 (45)
Yield strength σs (MPa): ≥ 295 (30)
Elongation δ5 (%): ≥ 22
Reduction of area ψ (%): ≥ 60
Impact energy Akv (J): ≥ 94
Impact toughness αkv (J/cm2): ≥ 118 (12)
Hardness: ≤ 179HB
Sample size: Sample size is 30mm rough