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1、-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/mmMPakg/mmmin不大于不大于不大于Q215A Q215B21522335-41034-42310.09-0.150.030.25-0.550.050 0.0450.045Q235A Q235BQ235CQ235D23524375-46038-47260.14-0.22 0.12-0.200.180.170.300.30-0.65 0.30-0.700.35-0.800.35-0.800.50 0.450.400.0350.045 0.0450.0400.03516Mn(Q345B)345
2、35510-60051.60220.12-0.200.20-0.551.2-1.60.0450.045X4228929.541342.10.28-1.250.0300.030X5235836.545546.40.30-1.350.0300.030X5638639.448949.90.26-1.350.0300.030X6041342.151752.70.26-1.350.0300.030X6544845.753054.00.26-1.400.0300.030X7048249.256557.60.26-1.400.0300.030L245245415210.261.150.0300.030L290290415210.281.250.0300.030L360360460190.31.250.0300.030第 3 页-