JPS57116760A - Heat resistant cast steel - Google Patents
Heat resistant cast steelInfo
- Publication number
- JPS57116760A JPS57116760A JP9137181A JP9137181A JPS57116760A JP S57116760 A JPS57116760 A JP S57116760A JP 9137181 A JP9137181 A JP 9137181A JP 9137181 A JP9137181 A JP 9137181A JP S57116760 A JPS57116760 A JP S57116760A
- Authority
- JP
- Japan
- Prior art keywords
- heat resistant
- cast steel
- resistant cast
- high temp
- strengthens
- 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.)
- Granted
Links
Landscapes
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
PURPOSE: To obtain a heat resistant cast steel with excellent creep rupture strength at ≥ about 1,000°C high temp., excellent thermal impact resistance, etc. by adding N and Ti to a heat resistant cast steel contg. Cr, Ni, Nb, W and Mo.
CONSTITUTION: This heat resistant cast steel consists of, by wt., 0.3W0.6% C, ≤2.0% Si, ≤2.0% Mn, 20W30% Cr, 30W40% Ni, 0.3W1.5% Nb, 0.5W3.0% w, 0.2W0.8% Mo, 0.04W0.15% N, 0.04W0.15% Ti and the balance essentially Fe. N stabilizes and strengthens the austenite phase in the form of solubilized nitrogen, and it forms carbonitride together with Ti carbide or C, makes the grains fine, and inhibits the growth, thereby contributing to improvements in the strength at high temp. and the thermal impact characteristics. Ti precipitates and disperses as carbide or carbonitride as mentioned above, and it strengthens the grain boundaries and enhances the intergranular corrosion resistance, thereby considerably enhancing the characteristics at high temp.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9137181A JPS5935426B2 (en) | 1981-06-13 | 1981-06-13 | heat resistant cast steel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9137181A JPS5935426B2 (en) | 1981-06-13 | 1981-06-13 | heat resistant cast steel |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP360481A Division JPS596909B2 (en) | 1981-01-12 | 1981-01-12 | heat resistant cast steel |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57116760A true JPS57116760A (en) | 1982-07-20 |
JPS5935426B2 JPS5935426B2 (en) | 1984-08-28 |
Family
ID=14024512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9137181A Expired JPS5935426B2 (en) | 1981-06-13 | 1981-06-13 | heat resistant cast steel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5935426B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03240930A (en) * | 1990-02-16 | 1991-10-28 | Kubota Corp | Heat-resistant alloy excellent in carburizing resistance and weldability |
-
1981
- 1981-06-13 JP JP9137181A patent/JPS5935426B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03240930A (en) * | 1990-02-16 | 1991-10-28 | Kubota Corp | Heat-resistant alloy excellent in carburizing resistance and weldability |
Also Published As
Publication number | Publication date |
---|---|
JPS5935426B2 (en) | 1984-08-28 |
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