发明名称 |
ULTRAHIGH-STRENGTH STEEL SHEET AND MANUFACTURING METHOD THEREFOR |
摘要 |
The present invention relates to an ultrahigh-strength steel sheet and a manufacturing method therefor. More specifically, the present invention can provide an ultra-high strength steel sheet which can ensure weldability and a delayed fracture resistance property by controlling the contents of elements affecting platability along with the contents of austenite-stabilizing elements and increasing twin formation through re-rolling, and simultaneously improve impact characteristics and workability by ensuring excellent yield strength and ductility. |
申请公布号 |
WO2015023012(A1) |
申请公布日期 |
2015.02.19 |
申请号 |
WO2013KR07350 |
申请日期 |
2013.08.14 |
申请人 |
POSCO |
发明人 |
KIM, SUNG-KYU;CHO, WON-TAE;KIM, TAI-HO;CHIN, KWANG-GEUN;HAN, SANG-HO |
分类号 |
C22C38/00;B21B3/00;C21D8/02;C21D9/46;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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