| 发明名称 |
Process for treating 9% nickel steel |
| 摘要 |
A heat treatment of nine percent nickel steel including carburizing, double normalizing, tempering, subcooling and then tempering to provide a steel having useful mechanical properties at extremely low temperatures.
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| 申请公布号 |
US3969158(A) |
申请公布日期 |
1976.07.13 |
| 申请号 |
US19720279521 |
申请日期 |
1972.08.10 |
| 申请人 |
YOUNGSTOWN SHEET AND TUBE COMPANY |
发明人 |
HOLBERT, ALBERT S. |
| 分类号 |
C22C38/00;C21D6/00;C21D9/40;C23C8/22;(IPC1-7):C23C11/12;C21D6/04 |
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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