发明名称 |
HIGH STRENGTH LOW ALLOY STEEL WITH EXCELLENT ENVIRONMENTAL EMBRITTLEMENT RESISTANCE IN HIGH PRESSURE HYDROGEN ENVIRONMENTS, AND METHOD OF MANUFACTURE THEREOF |
摘要 |
An object of the present invention is to provide at a low cost a low-alloy steel having a high strength and excellent high-pressure hydrogen environment embrittlement resistance characteristics under a high-pressure hydrogen environment. The invention is a high-strength low-alloy steel having high-pressure hydrogen environment embrittlement resistance characteristics, which has a composition comprising C: 0.10 to 0.20% by mass, Si: 0.10 to 0.40% by mass, Mn: 0.50 to 1.20% by mass, Ni: 0.75 to 1.75% by mass, Cr: 0.20 to 0.80% by mass, Cu: 0.10 to 0.50% by mass, Mo: 0.10 to 1.00% by mass, V: 0.01 to 0.10% by mass, B: 0.0005 to 0.005% by mass and N: 0.01% by mass or less, and further comprising one or two of Nb: 0.01 to 0.10% by mass and Ti: 0.005 to 0.050% by mass, with the balance consisting of Fe and unavoidable impurities. |
申请公布号 |
EP2278035(A1) |
申请公布日期 |
2011.01.26 |
申请号 |
EP20090746626 |
申请日期 |
2009.05.13 |
申请人 |
THE JAPAN STEEL WORKS, LTD. |
发明人 |
TAKASAWA, KOUICHI;WADA, YORU;ISHIGAKI, RYOJI;TANAKA, YASUHIKO |
分类号 |
C22C38/00;C21D6/00;C21D8/02;C22C38/54 |
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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