TWI763436B

In the present invention, a cold-rolled stainless steel sheet that exhibits excellent pitting corrosion resistance is provided. According to the present invention, a cold-rolled stainless steel sheet is produced by performing one or more rounds of cold rolling on a hot-rolled steel sheet having a co...

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Bibliographische Detailangaben
Hauptverfasser: OGAWA, RYOSUKE, OTA, HIROKI, KODAMA, YUTA, TSUCHIYA, EIJI, UCHINO, DIANA AI, WADA, HIROSHI, KOKUBO, KUNIHIKO, MATSUMURA, YUTA, HIROSE, SHOTA, HIRUTA, SHUHEI
Format: Patent
Sprache:chi
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Zusammenfassung:In the present invention, a cold-rolled stainless steel sheet that exhibits excellent pitting corrosion resistance is provided. According to the present invention, a cold-rolled stainless steel sheet is produced by performing one or more rounds of cold rolling on a hot-rolled steel sheet having a compositional makeup that includes, in mass %, not more than 0.40% of C, not more than 1.00% of Si, not more than 2.00% of Mn, not more than 0.045% of P, not more than 0.030% of S, 3.5-36.0% of Ni, 15.00-30.00% of Cr, 0-7.0% of Mo, and not more than 0.25% of N. In the cold rolling, heat treatment is performed after the final round of cold rolling among the rounds of cold rolling or after a round of cold rolling except the final round of cold rolling among the rounds of cold rolling, and then dilute nitric acid electrolytic treatment is lastly performed. As the heat treatment, a heat treatment of maintaining the steel sheet at a temperature in a range of 150-600°C for 30 s to 10 min or a heat treatment of maintaining