1、化学成分 拉伸性能C Mn P S Si标准 钢级max max max max max其它 other minmaxminmaxD168.3mmD168.3mm夏比Q215A0.150.251.200.0450.0500.3521533515 31Q215B0.150.25-0.550.0450.0450.3521533515 31Q235A0.220.30-0.650.0450.0500.3523537515 26Q235B0.200.301.800.0450.0450.3523537515 26Q295A0.160.80-1.500.0450.0450.5529539013 23Q295
2、B0.160.80-1.500.0400.0400.5529539013 23Q345A0.201.00-1.600.0450.0450.5534551013 21GB/T3091-2008Q345B0.201.00-1.600.0400.0400.55-NbvTi 加入见GB/T1591-94345-510-13 21-L175 0.21 0.600.0300.03017531527L210 0.21 0.900.0300.03021033525L245 0.26 1.150.0300.03024541521L290 0.28 1.250.0300.03029041521L320 0.30
3、1.250.0300.03032043520L360 0.30 1.250.0300.03036046019L390 0.26 1.350.0300.03039049018L415 0.26 1.350.0300.03041552017L450 0.26 1.400.0300.03045053517L485 0.23 1.600.0300.03048557016GB/T9711.1-1997L555 0.18 1.800.0300.030-可添加 NbvTi 三种元素中的一种或任一组合555-62582515可选择冲击功与剪切面积一个或两个韧性指标L555见标准(Timax) A25 0.21
4、 0.600.0300.030-172310A 0.22 0.900.0300.030-207331B 0.26 1.200.0300.0300.040241414X42 0.26 1.300.0300.0300.040290414X46 0.26 1.400.0300.0300.040317434X52 0.26 1.400.0300.0300.040359455X56 0.26 1.400.0300.0300.040386490X60 0.26 1.400.0300.0300.040414517X65 0.26 1.450.0300.0300.060448531AP1 5L（PSL1）X70 0.26 1.650.0300.0300.060B 级Nb+V0.03%，B级钢可添加 Nb、V 或其组合，且Nb+V+Ti0.15%Grade B Nb+V0.03% SteelGrade B,(Niovium Vanadium Titanium orcombinations maybe usde but Nb+V+Ti0.15%)483-565- 不要求或可选择冲击功与剪切面积一个或两个韧性判剧
