| 发明名称 |
HIGH-STRENGTH FERRITIC HEAT-RESISTANT STEEL AND PROCESS FOR PRODUCING THE SAME |
| 摘要 |
A ferritic heat-resistant steel having an excellent HAZ softening resistance and exhibiting a high creep strength at a temperature as high as 500 DEG C or above. The steel contains on a mass basis 0.01-0.30 % C, 0.02-0.80 % Si, 0.20-1.50 % Mn, 0.50-5.00 % Cr, 0.01-1.50 % Mo, 0.01-3.50 % W, 0.02-1.00 % V, 0.01-0.50 % Nb, 0.001-0.06 % N, and at least either 0.001-0.8 % Ti or 0.001-0.8 % Zr, and the content of Ti and Zr in the M23C6 type carbides is 5-65 % of the total content of Cr, Fe, Ti and Zr. |
| 申请公布号 |
WO9614443(A1) |
申请公布日期 |
1996.05.17 |
| 申请号 |
WO1995JP02247 |
申请日期 |
1995.11.02 |
| 申请人 |
NIPPON STEEL CORPORATION;BABCOCK-HITACHI KABUSHIKI KAISHA;FUJITA, TOSHIO;HASEGAWA, YASUSHI;NAOI, HISASHI;SATO, TAKASHI;TAMURA, KOHJI |
发明人 |
FUJITA, TOSHIO;HASEGAWA, YASUSHI;NAOI, HISASHI;SATO, TAKASHI;TAMURA, KOHJI |
| 分类号 |
C22C29/06;C21D6/00;C21D8/00;C22C38/00;C22C38/22;C22C38/24;C22C38/26;C22C38/28;C22C38/44;C22C38/46;C22C38/48;C22C38/50;C22C38/52 |
主分类号 |
C22C29/06 |
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