标准号化学成分(%)CSiMnPSSWRH270.24~0.310.15~0.350.30~0.600.040max.0.040max.SWRH320.29~0.360.15~0.350.30~0.600.040max.0.040max.SWRH370.34~0.410.15~0.350.30~0.600.040max.0.040max.SWRH42A0.39~0.460.15~0.350.30~0.600.040max.0.040max.SWRH42B0.39~0.460.15~0.350.60~0.900.040max.0.040max.SWRH47A0.44~0.510.15~0.350.30~0.600.040max.0.040max.SWRH47B0.44~0.510.15~0.350.60~0.900.040max.0.040max.此信息由恒鑫钢材提供--------材质，化学成分，力学性能，材质对照表，规格，质量，数量，价格等。欢迎新老客户来电订购咨询。电话：0769-89793315手机：13480435243陈先生)