发明申请
- 专利标题： GALVANIZED STEEL SHEET EXCELLENT IN UNIFORMITY AND METHOD FOR PRODUCING THE SAME
- 专利标题（中）： 优质的钢板和其生产方法
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申请号： US12667707申请日： 2008-07-10
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公开(公告)号： US20100330392A1公开(公告)日： 2010-12-30
- 发明人: Yoshihiko Ono , Hideyuki Kimura , Kaneharu Okuda , Takeshi Fujita , Michitaka Sakurai
- 申请人： Yoshihiko Ono , Hideyuki Kimura , Kaneharu Okuda , Takeshi Fujita , Michitaka Sakurai
- 申请人地址： JP Tokyo
- 专利权人： JFE STEEL CORPORATION
- 当前专利权人： JFE STEEL CORPORATION
- 当前专利权人地址： JP Tokyo
- 优先权： JP2007-181945 20070711
- 国际申请： PCT/JP2008/062876 WO 20080710
- 主分类号： C22C38/38
- IPC分类号： C22C38/38 ; C22C38/58 ; C23C2/02
摘要：
A high-strength galvanized steel sheet has a steel composition which contains, by % by mass, 0.01 to 0.12% of C, 0.2% or less of Si, less than 2% of Mn, 0.04% or less of P, 0.02% or less of S, 0.3% or less of sol. Al, 0.01% or less of N, and over 0.3% to 2% of Cr, and which satisfies 2.1≦[Mneq]≦3 and 0.24≦[% Cr]/[% Mn], the balance being composed of iron and inevitable impurities, and has a steel microstructures containing ferrite and a second phase.
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