| 摘要 |
PROBLEM TO BE SOLVED: To provide a steel sheet excellent in surface roughing characteristic and corrosion resistance, free from can body breakage at the time of continuous high speed can manufacture, having superior workability, and suitable for thin deep-drawn can, and its production. SOLUTION: The steel sheet can be produced by subjecting a hot rolled steel plate, having a composition consisting of 0.01-0.15% C, <=0.05% Si, <=0.9% Mn, <=0.04% P, <=0.04% S, 0.015-0.10% Al, 0.0020-0.015% N, and the balance Fe with inevitable impurities, to cold rolling, continuous annealing by means of a heat cycle containing overaging treatment, and temper rolling at 0.5-2.0% elongation percentage in succession. Further, the average crystalline grain size of the steel sheet after temper rolling is regulated to <=6.0μm.
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