| 发明名称 |
Ultra high strength, secondary hardening steels with superior toughness and weldability |
| 摘要 |
High strength steel is produced by a first rolling of a steel composition, reheated above 1100 DEG C., above the austenite recrystallization, a second rolling below the austenite recrystallization temperature, water cooling from above AR3 to less than 400 DEG C. and followed by tempering below the Ac1 transformation point.
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| 申请公布号 |
US5900075(A) |
申请公布日期 |
1999.05.04 |
| 申请号 |
US19970889770 |
申请日期 |
1997.07.08 |
| 申请人 |
EXXON RESEARCH AND ENGINEERING CO. |
发明人 |
KOO, JAYOUNG;LUTON, MICHAEL J. |
| 分类号 |
C21D6/02;C21D7/12;C21D8/02;C21D8/10;C22C38/04;C22C38/08;C22C38/16;C22C38/46;C22C38/48;C22C38/58;(IPC1-7):C22C38/12 |
主分类号 |
C21D6/02 |
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