JPS57207159A - Low pressure rotor for steam turbine - Google Patents
Low pressure rotor for steam turbineInfo
- Publication number
- JPS57207159A JPS57207159A JP9218181A JP9218181A JPS57207159A JP S57207159 A JPS57207159 A JP S57207159A JP 9218181 A JP9218181 A JP 9218181A JP 9218181 A JP9218181 A JP 9218181A JP S57207159 A JPS57207159 A JP S57207159A
- Authority
- JP
- Japan
- Prior art keywords
- low pressure
- pressure rotor
- steam turbine
- steel
- embrittlement resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To provide a low pressure rotor for a steam turbine consisting of a prescribed percentage each of C, Si, Mn, Ni, Cr, Mo, V and Ca and the balance essentially Fe and having high strength, high toughness and especially superior temper embrittlement resistance.
CONSTITUTION: This low pressure rotor for a steam turbine consists of, by weight, 0.15W0.35% C, ≤0.1% Si, 0.1W0.5% Mn, 3.5W6.0% Ni, 1.2W2.5% Cr, 0.1W1.0% Mo, 0.05W0.2% V, 0.001W0.02% Ca and the balance essentially Fe. By using steel having said composition, the low pressure rotor has improved temper embrittlement resistance and strength without deteriorating high toughness characteristic of conventional Ni-Cr-Mo-V steel.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9218181A JPS57207159A (en) | 1981-06-17 | 1981-06-17 | Low pressure rotor for steam turbine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9218181A JPS57207159A (en) | 1981-06-17 | 1981-06-17 | Low pressure rotor for steam turbine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57207159A true JPS57207159A (en) | 1982-12-18 |
Family
ID=14047260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9218181A Pending JPS57207159A (en) | 1981-06-17 | 1981-06-17 | Low pressure rotor for steam turbine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57207159A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988005086A1 (en) * | 1987-01-09 | 1988-07-14 | Hitachi, Ltd. | Heat-resistant steel and gas turbine made of the same |
JPH05112847A (en) * | 1991-03-20 | 1993-05-07 | Hitachi Ltd | Rotor shaft for rotary electric machine, its manufacture and rotary electric machine using the above |
-
1981
- 1981-06-17 JP JP9218181A patent/JPS57207159A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988005086A1 (en) * | 1987-01-09 | 1988-07-14 | Hitachi, Ltd. | Heat-resistant steel and gas turbine made of the same |
JPH05112847A (en) * | 1991-03-20 | 1993-05-07 | Hitachi Ltd | Rotor shaft for rotary electric machine, its manufacture and rotary electric machine using the above |
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