Steam turbine rotor and alloy therefor
US8523519B2 · kind B2 · utility
3Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2009 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Feb 9, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/161
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An alloy suitable for use in a rotor, such as one or more regions of a steam turbine rotor, as well as a forged rotor formed with the alloy. The alloy consists of, by weight, 0.20 to 0.30% carbon, 0.80 to 1.5% chromium, 0.80 to 1.5% molybdenum, 0.50 to 0.90% vanadium, 0.30 to 0.80% nickel, 0.05 to 0.15% titanium, 0.20 to 1.0% manganese, and 0.005 to 0.012% boron, the balance iron, optionally low levels of other alloying constituents, and incidental impurities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.