- 专利标题: Seamless steel pipe and method for producing same
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申请号: US14423480申请日: 2013-08-28
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公开(公告)号: US10131962B2公开(公告)日: 2018-11-20
- 发明人: Yuji Arai , Kenji Kobayashi , Hiroyuki Nagayama
- 申请人: NIPPON STEEL & SUMITOMO METAL CORPORATION
- 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: Clark & Brody
- 优先权: JP2012-188634 20120829
- 国际申请: PCT/JP2013/073048 WO 20130828
- 国际公布: WO2014/034737 WO 20140306
- 主分类号: C21D1/18
- IPC分类号: C21D1/18 ; C21D8/10 ; C21D6/00 ; F16L9/02 ; C21D9/08 ; C22C38/38 ; C22C38/58 ; C22C38/00 ; C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/20 ; C22C38/22 ; C22C38/24 ; C22C38/26 ; C22C38/28 ; C22C38/42 ; C22C38/44 ; C22C38/46 ; C22C38/48 ; C22C38/50
摘要:
A seamless steel pipe has a carbon equivalent Ceq of 0.50% to 0.58%, and contains specified carbides containing Mo at a ratio of 50 mass % or more, V, and at least one selected from the group consisting of Ti and Nb, and having a size of 20 nm or more.
公开/授权文献
- US20150315685A1 SEAMLESS STEEL PIPE AND METHOD FOR PRODUCING SAME 公开/授权日:2015-11-05
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