发明申请
- 专利标题： HIGH-STRENGTH HOT-ROLLED STEEL SHEET
- 专利标题（中）： 高强度热轧钢板
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申请号： US14237286申请日： 2012-08-15
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公开(公告)号： US20140161659A1公开(公告)日： 2014-06-12
- 发明人: Toshio Murakami , Masao Kinefuchi , Hideo Hata
- 申请人： Toshio Murakami , Masao Kinefuchi , Hideo Hata
- 申请人地址： JP Kobe-shi, Hyogo
- 专利权人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- 当前专利权人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- 当前专利权人地址： JP Kobe-shi, Hyogo
- 优先权： JP2011-178475 20110817; JP2011-178476 20110817
- 国际申请： PCT/JP2012/070727 WO 20120815
- 主分类号： C22C38/28
- IPC分类号： C22C38/28 ; C22C38/16 ; C22C38/14 ; C22C38/00 ; C22C38/08 ; C22C38/06 ; C22C38/04 ; C22C38/02 ; C22C38/24 ; C22C38/12
摘要：
This high-strength hot-rolled steel plate contains specific amounts of C, Si, Mn, Al, V and also Ti and/or Nb so as to fulfill C−12(V/51+Ti/48+Nb/93)>0.03, and the rest consists of iron and unavoidable impurities. Ferrite is the main microstructure, the remaining microstructure is one or more selected from the group consisting of bainite, martensite and retained austenite, wherein the average particle diameter of precipitated carbides (the total content of V, Ti and Nb is 0.02% or greater) in the ferrite is less than 6 nm.
公开/授权文献
- US09689060B2 High-strength hot-rolled steel sheet 公开/授权日：2017-06-27
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