发明名称 |
HIGH STRENGTH STEEL SHEET HAVING EXCELLENT CRYOGENIC TEMPERATURE TOUGHNESS AND LOW YIELD RATIO PROPERTIES, AND METHOD FOR MANUFACTURING SAME |
摘要 |
The present invention relates to a high strength steel sheet having low yield ratio properties and excellent cryogenic temperature toughness and thus is suitable to be applied to the steel material for a gas tank used for the storage of gas or the like. To this end, the present invention may optimize not only the component composition of the steel material but also a manufacture condition, thus providing a high strength steel sheet suitable for the steel material for a gas tank. |
申请公布号 |
EP2940172(B1) |
申请公布日期 |
2017.03.01 |
申请号 |
EP20120891147 |
申请日期 |
2012.12.28 |
申请人 |
POSCO |
发明人 |
JANG, Sung-Ho;KIM, Woo-Gyeom;BANG, Ki-Hyun |
分类号 |
C21D6/00;C21D8/02;C21D9/46;C22C38/00;C22C38/02;C22C38/04;C22C38/06;C22C38/08;C22C38/12;C22C38/14;C22C38/16;C22C38/20 |
主分类号 |
C21D6/00 |
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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