Q235B 的化学成分及力学性能(3 页)Good is good, but better carries it.精益求精，善益求善。Q235B 的化学成分及力学性能种力学性能化学成份屈服强度抗拉强度伸长率CSiMnSPMPakg/mm²MPakg/mm²min不大于不大于不大于Q215A Q215B21522335-41034-42310.09-0.150.03 0.25-0.550.050 0.0450.045Q235A Q235BQ235C23524375-46038-47260.14-0.22 0.12-0.20≤0.180.30 0.30-0.65 0.30-0.700.35-0.50 0.450.400.045 0.0450.0Q235D≤0.170.800.35-0.800.035400.03516Mn(Q345B)34535510-60051.60220.12-0.200.20-0.551.2-1.6 0.0450.045X42289 29.5 413 42.1 0.28-1.250.0300.030X52358 36.5 455 46.40.30-1.350.0300.030X56386 39.4 489 49.90.26-1.350.0300.030X60413 42.1 517 52.70.26-1.350.0300.030X65448 45.7 530 54.00.26-1.400.0300.030X70482 49.2 565 57.60.26-1.400.0300.030L24524 415 210.26 1.150.03 0.05030L290 290 415 210.28 1.250.0300.030L360360 460 190.3 1.250.0300.030…@\（#(。!"？"{#>—&。<！.'|}}!:…/&'
