发明名称 |
NIOBIUM ADDITION IN CRMO¼V STEEL CASTINGS FOR STEAM TURBINE CASING APPLIATIONS |
摘要 |
A chromium-molybdenum-vanadium (Cr—Mo—V) cast steel including 0.04 to 0.08% by weight of niobium is disclosed. The cast steel may include 0.08 to 0.12% by weight carbon. The cast steel may also have a sulphur content of 0.015% by weight or less, and a phosphorus content of 0.02% by weight or less. The silicon content may be 0.30 to 0.60% by weight, the manganese content may be 0.50 to 0.80% by weight, the chromium content may be 1.20 to 1.50% by weight, the molybdenum content may be 0.90 to 1.10% by weight, and the vanadium content may be 0.20 to 0.30% by weight. |
申请公布号 |
EP1979499(A4) |
申请公布日期 |
2010.04.21 |
申请号 |
EP20060745200 |
申请日期 |
2006.03.20 |
申请人 |
BHARAT HEAVY ELECTRICALS LIMITED |
发明人 |
SINGH, KULVIR;GURRAM, JAIPAL, REDDY;KATAM, SUDHAKAR, REDDY;NATH, PASHUPATI;PUDTHA, MALLESH;AGRAWAL, VISHNU, KUMAR |
分类号 |
C22C37/06;C22C37/10;C22C38/02;C22C38/04;C22C38/12;C22C38/18;C22C38/24;C22C38/26;C22C38/54 |
主分类号 |
C22C37/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|