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
Schlagworte:	ALLOYS AXLES FOR WHEELS OR CASTORS CASTORS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INCREASING WHEEL ADHESION MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS VEHICLE WHEELS VEHICLES IN GENERAL
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Beschreibung
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