发明名称 |
COLD-ROLLED STEEL SHEET AND METHOD FOR PRODUCING SAME |
摘要 |
A cold-rolled steel sheet satisfies that an average pole density of an orientation group of {100}<011> to {223}<110> is 1.0 to 5.0, a pole density of a crystal orientation {332}<113> is 1.0 to 4.0, a Lankford-value rC in a direction perpendicular to a rolling direction is 0.70 to 1.50, and a Lankford-value r30 in a direction making an angle of 30° with the rolling direction is 0.70 to 1.50. Moreover, the cold-rolled steel sheet includes, as a metallographic structure, by area %, a ferrite and a bainite of 30% to 99% in total and a martensite of 1% to 70%. |
申请公布号 |
US2014087208(A1) |
申请公布日期 |
2014.03.27 |
申请号 |
US201214118968 |
申请日期 |
2012.05.24 |
申请人 |
NIPPON STEEL & SUMITOMO METAL CORPORATION, |
发明人 |
TODA YURI;OKAMOTO RIKI;FUJITA NOBUHIRO;SANO KOHICHI;YOSHIDA HIROSHI;OGAWA TOSHIO;HAYASHI KUNIO;NAKANO KAZUAKI |
分类号 |
C21D8/02;C22C38/00;C22C38/02;C22C38/04;C22C38/06;C22C38/08;C22C38/10;C22C38/12;C22C38/14;C22C38/16;C22C38/18;C22C38/60 |
主分类号 |
C21D8/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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