準(zhǔn)名稱： 冷成型熱軋汽車結(jié)構(gòu)鋼
產(chǎn) 地 ：寶鋼
使用范圍：本牌號(hào)系列為細(xì)晶粒鋼，具有良好冷成型性。用于要求良好的冷成型性能并有較高或高強(qiáng)度要求的汽車大梁、橫梁等汽車結(jié)構(gòu)件。
化學(xué)成分（熔煉分析）%
材質(zhì) 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
