牌号化学成分％C≤aSi≤Mn≤aP≤S≤其它S175Ⅰ0.190.350.600.0300.030－S175Ⅱ0.190.350.600.045～0.0800.030－S2100.200.350.900.0300.030－S2450.240.351.200.0300.030b,dS2900.240.351.300.0300.030c,dS3200.240.351.400.0300.030c,dS3600.240.351.400.0300.030c,dS3900.240.401.400.0300.030c,dS415e0.240.401.400.0300.030c,dS450e0.240.401.450.0300.030c,dS485e0.240.401.650.0300.030c,d此信息由鼎盛公司提供：化学成分，力学性能。材质对照。材质标准，规格齐全。数量。价格优惠，质量有保证。欢迎新老客户来电洽谈)