发明授权
- 专利标题： Steel for welded structure and producing method thereof
- 专利标题（中）： 焊接结构钢及其制造方法
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申请号： US13138790申请日： 2010-05-21
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公开(公告)号： US08920713B2公开(公告)日： 2014-12-30
- 发明人: Yoshiyuki Watanabe , Kazuhiro Fukunaga , Akihiko Kojima , Ryuji Uemori , Rikio Chijiiwa
- 申请人： Yoshiyuki Watanabe , Kazuhiro Fukunaga , Akihiko Kojima , Ryuji Uemori , Rikio Chijiiwa
- 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： Kenyon & Kenyon LLP
- 优先权： JP2009-123428 20090521; JP2009-124614 20090522; JP2009-192387 20090821
- 国际申请： PCT/JP2010/003435 WO 20100521
- 国际公布： WO2010/134353 WO 20101125
- 主分类号： C22C38/08
- IPC分类号： C22C38/08 ; C22C38/04 ; C22C38/14 ; C22C38/02 ; B23K35/30 ; C21D6/00 ; C21D6/02 ; C21D8/02 ; C22C38/00 ; C22C38/06 ; C22C38/12 ; C22C38/16
摘要：
A steel for a welded structure includes the following composition: by mass %, C at a C content [C] of 0.010 to 0.065%; Si at a Si content [Si] of 0.05 to 0.20%; Mn at a Mn content [Mn] of 1.52 to 2.70%; Ni at a Ni content [Ni] of 0.10% to 1.50%; Ti at a Ti content [Ti] of 0.005 to 0.015%; O at an O content [O] of 0.0010 to 0.0045%; N at a N content [N] of 0.002 to 0.006%; Mg at a Mg content [Mg] of 0.0003 to 0.003%; Ca at a Ca content [Ca] of 0.0003 to 0.003%; and the balance composed of Fe and unavoidable impurities. A steel component parameter PCTOD is 0.065% or less, and a steel component hardness parameter CeqH is 0.235% or less.
公开/授权文献
- US20120027637A1 STEEL FOR WELDED STRUCTURE AND PRODUCING METHOD THEREOF 公开/授权日：2012-02-02
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