发明授权
- 专利标题： High-strength steel sheet and method for producing same
- 专利标题（中）： 高强度钢板及其制造方法
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申请号： US13636993申请日： 2011-05-10
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公开(公告)号： US09238848B2公开(公告)日： 2016-01-19
- 发明人: Yoshihiro Suwa , Kenichi Yamamoto , Daisuke Maeda , Satoshi Hirose , Genichi Shigesato , Naoki Yoshinaga
- 申请人： Yoshihiro Suwa , Kenichi Yamamoto , Daisuke Maeda , Satoshi Hirose , Genichi Shigesato , Naoki Yoshinaga
- 申请人地址： JP Tokyo
- 专利权人： NIPPON STEEL & SUMITOMO METAL CORPORATION
- 当前专利权人： NIPPON STEEL & SUMITOMO METAL CORPORATION
- 当前专利权人地址： JP Tokyo
- 代理机构： Birch, Stewart, Kolasch & Birch, LLP
- 优先权： JP2010-108431 20100510; JP2010-133709 20100611
- 国际申请： PCT/JP2011/060760 WO 20110510
- 国际公布： WO2011/142356 WO 20111117
- 主分类号： C22F1/10
- IPC分类号： C22F1/10 ; C21D8/02 ; C22C38/00 ; C21D6/00 ; C22C38/14 ; C22C38/02 ; C22C38/04 ; C22C38/06
摘要：
A high-strength steel sheet includes, by mass %, C: 0.03% to 0.30%, Si: 0.08% to 2.1%, Mn: 0.5% to 4.0%, P: 0.05% or less, S: 0.0001% to 0.1%, N: 0.01% or less, acid-soluble Al: more than 0.004% and less than or equal to 2.0%, acid-soluble Ti: 0.0001% to 0.20%, at least one selected from Ce and La: 0.001% to 0.04% in total, and a balance of iron and inevitable impurities, in which [Ce], [La], [acid-soluble Al], and [S] satisfy 0.02≦([Ce]+[La])/[acid-soluble Al]
公开/授权文献
- US20130008568A1 HIGH-STRENGTH STEEL SHEET AND METHOD FOR PRODUCING SAME 公开/授权日：2013-01-10
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