发明名称 |
AGE HARDENABLE ALLOY WITH A UNIQUE COMBINATION OF VERY HIGH STRENGTH AND GOOD TOUGHNESS |
摘要 |
An age hardenable martensitic steel alloy having a unique combinaition of very high strength and good toughness consists essentially of, in weight percent, about C: 0.21-0.34; Mn: 0.20 max.; Si: 0.10 max.; P: 0.008 max.; S: 0.003 max.; Cr: 1.5-2.80; Mo: 0.90-1.80; Ni: 10-13; Co: 14.0-22.0; Al: 0.1 max.; Ti: 0.05 max.; Ce: 0.030 max.; La: 0.010 max.; the balance essentially iron. In addition, cerium and sulfur are balanced so that the ratio Ce/S is at least about 2 and not more than about 15. A small but effective amount of calcium can be present in place of some or all of the cerium and lanthanum.
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申请公布号 |
WO9810112(A1) |
申请公布日期 |
1998.03.12 |
申请号 |
WO1997US15448 |
申请日期 |
1997.09.03 |
申请人 |
CRS HOLDINGS, INC. |
发明人 |
HEMPHILL, RAYMOND, M.;WERT, DAVID, E.;NOVOTNY, PAUL, M.;SCHMIDT, MICHAEL, L. |
分类号 |
C22C38/00;C21D6/00;C21D9/42;C22C38/10;C22C38/52;(IPC1-7):C22C38/10 |
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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