发明授权
- 专利标题： High young's modulus steel plate and method of production of same
- 专利标题（中）： 高年模量钢板及其生产方法相同
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申请号： US12312325申请日： 2007-11-07
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公开(公告)号： US08353992B2公开(公告)日： 2013-01-15
- 发明人: Natsuko Sugiura , Naoki Maruyama , Manabu Takahashi , Yohji Nakamura , Koji Hanya
- 申请人： Natsuko Sugiura , Naoki Maruyama , Manabu Takahashi , Yohji Nakamura , Koji Hanya
- 申请人地址： JP Tokyo
- 专利权人： Nippon Steel Corporation
- 当前专利权人： Nippon Steel Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Kenyon & Kenyon LLP
- 优先权： JP2006-301354 20061107; JP2007-098764 20070404; JP2007-288960 20071106
- 国际申请： PCT/JP2007/072042 WO 20071107
- 国际公布： WO2008/056812 WO 20080515
- 主分类号： C22C38/14
- IPC分类号： C22C38/14 ; C22C38/12 ; C21D38/02
摘要：
Steel sheet having a composition of ingredients containing substantially, by mass %, C: 0.005 to 0.200%, Si: 2.50% or less, Mn: 0.10 to 3.00%, N: 0.0100% or less, Nb: 0.005 to 0.100%, and Ti: 0.002 to 0.150% and satisfying the relationship of Ti−48/14×N≧0.0005, having a sum of the X-ray random intensity ratios of the {100} orientation and the {110} orientation of a ⅙ sheet thickness part of 5 or less, having a sum of the maximum value of the X-ray random intensity ratios of the {110} to {110} orientation group and the X-ray random intensity ratios of the {211} orientation of 5 or more, and having a high rolling direction Young's modulus measured by the static tension method and a method of production of the same are provided.
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