- 专利标题： HIGH-STRENGTH STEEL WITH EXCELLENT TOUGHNESS OF WELDING HEAT AFFECTED ZONE AND MANUFACTURING METHOD THEREOF
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申请号： EP18891918.7申请日： 2018-12-21
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公开(公告)号： EP3730644A1公开(公告)日： 2020-10-28
- 发明人: CHAE, Jae-Yong , KANG, Sang-Deok
- 申请人： POSCO
- 申请人地址： (Goedong-dong) 6261, Donghaean-ro Nam-gu Pohang-si Gyeongsangbuk-do 37859 KR
- 专利权人： POSCO
- 当前专利权人： POSCO
- 当前专利权人地址： (Goedong-dong) 6261, Donghaean-ro Nam-gu Pohang-si Gyeongsangbuk-do 37859 KR
- 代理机构： Potter Clarkson
- 优先权： KR20170178934 20171224
- 国际公布： WO2019125075 20190627
- 主分类号： C22C38/04
- IPC分类号： C22C38/04 ; C22C38/14 ; C22C38/06 ; C22C38/00 ; C22C38/12 ; C22C38/18 ; C22C38/16 ; C21D8/02
摘要：
The present invention relates to structural steel used as a material of storage tanks, pressure vessels, building structures, ship structures, etc. and, more particularly, to steel with excellent toughness of a welding heat affected zone and a manufacturing method thereof.
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