准名称： 冷成型热轧汽车结构钢
产 地 ：宝钢
使用范围：本牌号系列为细晶粒钢，具有良好冷成型性。用于要求良好的冷成型性能并有较高或高强度要求的汽车大梁、横梁等汽车结构件。
化学成分（熔炼分析）%
材质 C Si Mn P S Ti Nb Ait V
S315MC ≤0.12 ≤0.50 ≤1.30 ≤0.25 ≤0.02 ≤0.15 ≤0.09 ≥0.015 ≤0.20
S355MC ≤0.12 ≤0.50 ≤1.50 ≤0.25 ≤0.02 ≤0.15 ≤0.09 ≥0.015 ≤0.20
S420MC ≤0.12 ≤0.50 ≤1.60 ≤0.25 ≤0.015 ≤0.15 ≤0.09 ≥0.015 ≤0.20
S460MC ≤0.12 ≤0.50 ≤1.60 ≤0.25 ≤0.015 ≤0.15 ≤0.09 ≥0.015 ≤0.20
S500MC ≤0.12 ≤0.50 ≤1.70 ≤0.25 ≤0.015 ≤0.15 ≤0.09 ≥0.015 ≤0.20
S550MC ≤0.12 ≤0.50 ≤1.80 ≤0.25 ≤0.015 ≤0.15 ≤0.09 ≥0.015 ≤0.20
S600MC ≤0.12 ≤0.50 ≤1.90 ≤0.25 ≤0.015 ≤0.22 ≤0.09 ≥0.015 ≤0.20
S650MC ≤0.12 ≤0.60 ≤2.00 ≤0.25 ≤0.015 ≤0.22 ≤0.09 ≥0.015 ≤0.20
S700MC ≤0.12 ≤0.60 ≤2.10 ≤0.25 ≤0.015 ≤0.22 ≤0.009≥0.015 ≤0.20
