ST12是普通冷轧钢，ST13冲压�**湓郑琒T14是深拉伸级的 ST15 低碳超深冲级 ST16 是超低碳超深冲级
ST12等同于DC01,SPCC
ST13等同于DC03,SPCD
ST14等同于DC04,SPCE,08AL
ST15等同于DC05,SPCF
ST16等同于DC06,SPCE-T
化学成分
**号 化学成分% 屈服点Mpa 抗拉强度Mpa 伸长率% 硬度HRB 弯曲试验
C Si Mn P S
SPCC ≤0.12 ≤0.05 ≤0.05 ≤0.035 ≤0.035 - ≥270 ≥20 - 180摄氏度
SPCD ≤0.10 ≤0.03 ≤0.45 ≤0.030 ≤0.035 - ≥270 ≥28 - 180摄氏度
SPCE ≤0.08 ≤0.03 ≤0.40 ≤0.025 ≤0.030 - ≥270 ≥35 - 180摄氏度
SPCC1B ≤0.12 ≤0.05 ≤0.05 ≤0.035 ≤0.035 - - - 85 180摄氏度
SPCC4B 0.08-0.13 ≤0.05 0.35-0.65 ≤0.035 ≤0.035 - - - 65-80 180摄氏度