发明名称 Ferritic stainless steel sheet excellent in press formability and workability and method for production thereof
摘要 A ferritic stainless steel sheet excellent in press formability and operability, characterized by: containing appropriate amounts of C, N, Cr, Si, Mn, P, S, Al, Ti and V, with the balance consisting of Fe and unavoidable impurities; having a solid lubricating film or films on one or both of the surfaces; and having a ratio Z, defined as Z=Z<SUB>1</SUB>/Z<SUB>2</SUB>, of less than 0.5, a tensile strength of 450 MPa or less and an average r-value of 1.7 or more, wherein Z<SUB>1 </SUB>is a friction coefficient of the surface of a solid lubricating film and Z<SUB>2 </SUB>that of the surface of a reference material coated with neither a coating nor lubricating oil. In the ferritic stainless steel sheet, the amounts of Sol-Ti and Insol-V may be regulated to appropriate ranges, wherein Sol-Ti means the amount of Ti existing in the state of solid solution in steel and Insol-V means the amount of V existing in the state of precipitation in steel.
申请公布号 US7341637(B2) 申请公布日期 2008.03.11
申请号 US20030467120 申请日期 2003.08.05
申请人 NIPPON STEEL & SUMIKIN STAINLESS STEEL CORPORATION 发明人 KIMURA KEN;KIKUCHI MASAO;TENDO MASAYUKI;HAMADA JUNICHI;AKAMATSU SATOSHI
分类号 C22C38/18;B05D1/28;B05D7/14;C21D6/00;C21D8/04;C21D9/48;C22C38/00;C22C38/06;C22C38/24;C22C38/28 主分类号 C22C38/18
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