发明名称 |
HIGH STRENGTH STEEL SHEET HAVING EXCELLENT HYDROGEN EMBRITTLEMENT RESISTANCE |
摘要 |
Disclosed is a high strength steel sheet having excellent hydrogen embrittlement resistance. The steel sheet has a tensile strength of 1180 MPa or more, and satisfies the following conditions: with respect to an entire metallographic structure thereof, bainite, bainitic ferrite and tempered martensite account for 85 area% or more in total; retained austenite accounts for 1 area% or more; and fresh martensite accounts for 5 area% or less (including 0 area%). |
申请公布号 |
KR20120011079(A) |
申请公布日期 |
2012.02.06 |
申请号 |
KR20117030071 |
申请日期 |
2010.05.28 |
申请人 |
KABUSHIKI KAISHA KOBE SEIKO SHO;VOESTALPINE STAHL GMBH |
发明人 |
MUKAI YOICHI;KASUYA KOUJI;NAKAYA MICHIHARU;TSUNEZAWA MICHITAKA;YUSE FUMIO;KINUGASA JUNICHIRO;TRAINT SANDRA;PICHLER ANDREAS |
分类号 |
C22C38/00;C21D9/46;C22C38/06;C22C38/58 |
主分类号 |
C22C38/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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