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Q235B 16MN鋼管 L245 L290 Q345鋼管的力學性能和化學成份,Q235B 16MN鋼管 L245 L290 Q345鋼管的力學性能和化學成份

浏览次数:473日期:2019-11-17
鋼種力學性能化學成份屈服強度抗拉強度伸長率CSiMnSPMPakg/mm²MPakg/mm²min不大於不大於不大於Q215A Q215B21522335-41034-42310.09-0.150.030.25-0.550.050 0.0450.045Q235A Q235BQ235CQ235D23524375-46038-47260.14-0.22 0.12-0.20≤0.18≤0.170.300.30-0.65 0.30-0.700.35-0.800.35-0.800.50 0.450.400.0350.045 0.0450.0400.03516Mn(Q345B)34535510-60051.60220.12-0.200.20-0.551.2-1.60.0450.045X4228929.541342.1 0.28-1.250.0300.030X5235836.545546.40.30-1.350.0300.030X5638639.448949.90.26-1.350.0300.030X6041342.151752.70.26-1.350.0300.030X6544845.753054.00.26-1.400.0300.030X7048249.256557.60.26-1.400.0300.030L245245 415 210.26 1.150.0300.030L290290 415 210.28 1.250.0300.030L360360 460 190.3 1.250.0300.030