发明名称 FERRITIC STAINLESS STEEL PLATE EXCELLENT IN PUNCHABILITY AND PROCESS FOR PRODUCTION OF THE SAME
摘要 A ferritic stainless steel sheet which can be processed by a punching work and/or a shearing work without generating burrs and a method for manufacturing the ferritic stainless steel sheet are provided. In particular, after a slab having a composition which contains 0.0030 to 0.012 mass percent of C, 0.13 mass percent or less of Si, 0.25 mass percent or less of Mn, 0.04 mass percent or less of P, 0.005 mass percent or less of S, 0.06 mass percent or less of Al, 0.0030 to 0.012 mass percent of N, 20.5 to 23.5 mass percent of Cr, 0.3 to 0.6 mass percent of Cu, 0.5 mass percent or less of Ni, 0.3 to 0.5 mass percent of Nb, 0.05 to 0.15 mass percent of Ti, and the balance being Fe and inevitable impurities is hot-rolled at a finishing temperature of 900°C or more and at a coiling temperature of 400 to 550°C, softening annealing is performed on an obtained hot-rolled steel sheet, picking is further performed, and cold rolling is subsequently performed.
申请公布号 EP2182085(A4) 申请公布日期 2016.03.16
申请号 EP20080777563 申请日期 2008.06.18
申请人 JFE STEEL CORPORATION 发明人 ISHII, TOMOHIRO;FUNAKAWA, YOSHIMASA;OKADA, SHUJI;OHTA, MASAYUKI
分类号 C22C38/00;B21B1/26;B21B3/02;C21D1/32;C21D1/673;C21D6/00;C21D8/04;C21D9/46;C22C38/02;C22C38/04;C22C38/42;C22C38/48;C22C38/50;C22C38/54 主分类号 C22C38/00
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