JPS57126958A - Low alloy steel for rotor - Google Patents
Low alloy steel for rotorInfo
- Publication number
- JPS57126958A JPS57126958A JP1018781A JP1018781A JPS57126958A JP S57126958 A JPS57126958 A JP S57126958A JP 1018781 A JP1018781 A JP 1018781A JP 1018781 A JP1018781 A JP 1018781A JP S57126958 A JPS57126958 A JP S57126958A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- alloy steel
- low alloy
- steel
- ratio respectively
- 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
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
PURPOSE: To provide the low alloy steel for a rotor provided with especially excellent temper brittleness resistance containing C, Mn, Si, Ni, Cr, Mo, V, Nb and Ca in a predetermined ratio respectively.
CONSTITUTION: The low alloy steel for a rotor comprises, on the wt. basis, 0.15W0.35% C, 0.2W0.5% Mn, 0.01W0.2% Si, 3.0W5.5% Ni, 0.5W2.0% Cr, 0.1W 1.0% Mo, 0.05W0.2% V, 0.01W0.1% Nb, 0.005W0.05% Ca and the remainder of Fe and inevitable impurities. That is, said low allow steel is the one comprising further containing Nb and Ca in a composition of 3.5 Ni-Cr-Mo-V steel which is a conventional rotor material in the aforementioned ratio respectively and a turbine rotor having high strength and high toughness as well as excellent in temper brittleness resistance is obtained. Therefore, even if the turbine rotor is made large, practical use is enabled sufficiently.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1018781A JPS57126958A (en) | 1981-01-28 | 1981-01-28 | Low alloy steel for rotor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1018781A JPS57126958A (en) | 1981-01-28 | 1981-01-28 | Low alloy steel for rotor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57126958A true JPS57126958A (en) | 1982-08-06 |
Family
ID=11743274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1018781A Pending JPS57126958A (en) | 1981-01-28 | 1981-01-28 | Low alloy steel for rotor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57126958A (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 |
US20100202891A1 (en) * | 2008-08-11 | 2010-08-12 | Shin Nishimoto | Low-pressure turbine rotor |
-
1981
- 1981-01-28 JP JP1018781A patent/JPS57126958A/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 |
US20100202891A1 (en) * | 2008-08-11 | 2010-08-12 | Shin Nishimoto | Low-pressure turbine rotor |
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