| 摘要 |
Disclosed is a high-strength ferrite-martensite steel sheet with excellent formability comprising: 0.05-0.15 weight % of C; 0.15 weight % or less of Si; 0.5-2.7 weight % of Mn; 0.1-0.7 weight % of Al; 0.005-0.03 weight % of P; 0.01-0.3 weight % of Sb; 0.002-0.02 weight % of S; at least one element selected from the group consisting of 0.01-0.6 weight % of Mo and 0.0005-0.0035 weight % of B; and the balance Fe and incidental impurities.
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