| 摘要 |
PROBLEM TO BE SOLVED: To provide technology for producing a Ti-contg. ferritic stainless steel sheet in which the behavior of recrystallization in hot rolling is controlled and having excellent workability. SOLUTION: A slab contg. by weight, <=0.010% C, <=0.010% N, also <=0.015% C+N, 6 to 25% Cr, 6×(C+N) to 0.5% Ti and the balance Fe with inevitable impurities is heated to <=1160 deg.C, is subjected to rough rolling in which the cumulative draft is controlled to >=85% and the final pass finishing temp. is controlled to >=950 deg.C, is then performed to finish rolling in which the cumulative draft is controlled to >=85%, and the final pass finishing temp. is controlled to 800 to 650 deg.C, is wound around a coil at 680 to 350 deg.C and thereafter is subjected to annealing, cold rolling and finish annealing.
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