METHOD FOR PRODUCING FERRITIC STAINLESS STEEL SHEET HAVING HIGH STRENGTH AND EXCELLENT CORROSION RESISTANCE

PROBLEM TO BE SOLVED: To provide a method for economically producing a ferritic stainless steel sheet having high strength and excellent corrosion resistance without adding Ni thereto and without increasing production stages. SOLUTION: Using a stainless steel sheet stock comprising, by mass, ≤0.080%...

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Hauptverfasser: KASASHIGE TOSHIHIRO, SHIOKAWA TAKASHI, HIRASAWA JUNICHIRO
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a method for economically producing a ferritic stainless steel sheet having high strength and excellent corrosion resistance without adding Ni thereto and without increasing production stages. SOLUTION: Using a stainless steel sheet stock comprising, by mass, ≤0.080% C and 11 to 19% Cr, finish heat treatment after cold rolling is performed in such a manner that the objective heating temperature is controlled to the range of 700 to 820°C, and, to the objective heating temperature, the holding time in the actual heating temperature of ±15°C satisfies the range of 50 to 100 s, and also, the product between the objective heating temperature and the holding time satisfies the range of 38,500°C×s to 77,000°C×s, and thereafter, pickling is performed. COPYRIGHT: (C)2006,JPO&NCIPI