Chemical composition wt% · log scale 0.01 0.1 1 10 C 0.17 – 0.24 Cr 0.4 Cr+Mo+Ni 0.63 Mn 0.4 – 0.7 Mo 0.1 Ni 0.4 P 0.035 S 0.035 Si 0.4
Mechanical properties value range by condition Yield strength Rp0.2 ≥210 MPa Tensile strength Rm ≥410 MPa Elongation A ≥25 % normalized, 16 < d <= 100 & 16 < t <= 100 mm Yield strength Rp0.2 ≥240 MPa Tensile strength Rm ≥430 MPa Elongation A ≥24 % normalized, d <= 16 & t <= 16 mm Yield strength Rp0.2 ≥290 MPa Tensile strength Rm 470–620 MPa Impact energy Kv/Ku ≥50 J Elongation A ≥22 % quenched and tempered, 16 < d <= 40 mm & 8 < L <= 20 mm Yield strength Rp0.2 ≥340 MPa Tensile strength Rm 500–600 MPa Impact energy Kv/Ku ≥50 J Elongation A ≥20 % quenched and tempered, d <= 16 & t <= 8 mm
Physical properties vs. temperature Mean thermal expansion 10⁻⁶/K 11.1 – 14.1 °C
France · AFNOR NF
Russia
European Union
Germany