| 摘要 |
PROBLEM TO BE SOLVED: To provide a steel slab manufacturing method without crack defects by edging when a carbon steel cast slab is edged. SOLUTION: In the method for manufacturing a steel slab by edging the steel cast slab obtained from molten steel by the continuous casting, the cast slab obtained by continuously casting the molten steel containing, by mass, 0.001-0.5% C, 0.1-1.9% Mn, 0.005-2.0% Si, 0.001-0.1% P, 0.001-0.1% S, 0.0005-0.005% O, and 0.002-0.005% N, further containing 0.005-0.05% Ti, 0.005-0.03% Al, and 0.0005-0.01% Ca, with the ratio Mn/S below 40, and the balance iron with inevitable impurities is rolled down in the width direction. COPYRIGHT: (C)2004,JPO
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