| 发明名称 |
As-hot rolled bar steel. |
| 摘要 |
<p>The toughness of vanadium and niobium microalloyed medium carbon bar steels is significantly improved by a controlled addition of aluminum in a range of from about 0.05 to 0.11 percent. Forged parts combining high strength and hardness properties with improved toughness can be made from the new bar steel without the need of heat treatment.</p> |
| 申请公布号 |
EP0300598(A1) |
申请公布日期 |
1989.01.25 |
| 申请号 |
EP19880304428 |
申请日期 |
1988.05.16 |
| 申请人 |
LTV STEEL COMPANY, INC. |
发明人 |
HELD, JOHN F.;LAUER, BARRY A. |
| 分类号 |
B21B3/00;C22C38/00;C22C38/06;C22C38/12;C22C38/60 |
主分类号 |
B21B3/00 |
| 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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