发明公开
- 专利标题： HIGH TOUGHNESS AND HIGH TENSILE STRENGTH THICK STEEL PLATE AND PRODUCTION METHOD THEREFOR
- 专利标题（中）： 高韧性高强度厚壁钢板及其生产方法
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申请号： EP14886339.2申请日： 2014-09-09
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公开(公告)号： EP3120941A1公开(公告)日： 2017-01-25
- 发明人: KITSUYA, Shigeki , ICHIMIYA, Katsuyuki , HASE, Kazukuni , KINUGAWA, Teruhisa , MATSUNAGA, Naoki , HAYASHI, Kenji , HORIE, Masayuki , TERAZAWA, Yusuke , ENDO, Shigeru
- 申请人： JFE Steel Corporation
- 申请人地址： 2-3, Uchisaiwai-cho 2-chome Chiyoda-ku Tokyo, 100-0011 JP
- 专利权人： JFE Steel Corporation
- 当前专利权人： JFE Steel Corporation
- 当前专利权人地址： 2-3, Uchisaiwai-cho 2-chome Chiyoda-ku Tokyo, 100-0011 JP
- 代理机构： Hoffmann Eitle
- 优先权： JP2014058611 20140320
- 国际公布： WO2015140846 20150924
- 主分类号： B21B1/38
- IPC分类号： B21B1/38 ; C21D8/02 ; C22C38/00 ; C22C38/58
摘要：
A high toughness and high tensile strength thick steel plate has a plate thickness of 100 mm or more, wherein a reduction of area in a center of the plate thickness by tension in a plate thickness direction is 40% or more. Thus, a high tensile strength thick steel plate with excellent strength and toughness in a center of the plate thickness can be obtained with no need for a larger production line, even in the case of producing a high strength thick steel plate for which the addition amount of alloying element needs to be increased.
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