JPS5620147A - Heat resistant cast steel material - Google Patents
Heat resistant cast steel materialInfo
- Publication number
- JPS5620147A JPS5620147A JP9791779A JP9791779A JPS5620147A JP S5620147 A JPS5620147 A JP S5620147A JP 9791779 A JP9791779 A JP 9791779A JP 9791779 A JP9791779 A JP 9791779A JP S5620147 A JPS5620147 A JP S5620147A
- Authority
- JP
- Japan
- Prior art keywords
- cast steel
- steel material
- heat resistant
- contents
- resistant cast
- 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)
Abstract
PURPOSE: To provide a heat resistant cast steel material capable of showing superior endurance even under severe conditions by specifying the contents of Si, Mn, Nb and N in a Cr-Ni cast steel composition.
CONSTITUTION: This cast steel material consists of, by weight, 0.3W0.5% C, 0.5W1.5% Si, 0.5W1.5% Mn, 22W28% Cr, 12W16% Ni, 1.0W2.0% Nb, ≤0.05% N and the balance essentially Fe. This material is an improved version of a Cr-Ni cast steel. By especially regulating the Si and Mn contents, the structure is stabilized to prevent the high temp. strength from lowering. Such a restricted amount of Nb is effective in preventing Cr type secondary carbide from precipitating in large quantities during use at high temp. The lowered N content enhances the endurance to thermal fatigue. Accordingly, this cast steel has satisfactory characteristics suitable for use as a material for a hearth roller, etc. which is repeatedly subjected to heating and cooling.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9791779A JPS5620147A (en) | 1979-07-28 | 1979-07-28 | Heat resistant cast steel material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9791779A JPS5620147A (en) | 1979-07-28 | 1979-07-28 | Heat resistant cast steel material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5620147A true JPS5620147A (en) | 1981-02-25 |
JPS5730904B2 JPS5730904B2 (en) | 1982-07-01 |
Family
ID=14205047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9791779A Granted JPS5620147A (en) | 1979-07-28 | 1979-07-28 | Heat resistant cast steel material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5620147A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59196159A (en) * | 1983-04-22 | 1984-11-07 | Ntn Toyo Bearing Co Ltd | Automatic wheel changer |
JPS60191761A (en) * | 1984-03-08 | 1985-09-30 | Osaka Seiki Kk | Wheel replacing device for superfinishing machine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5040099A (en) * | 1973-07-16 | 1975-04-12 |
-
1979
- 1979-07-28 JP JP9791779A patent/JPS5620147A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5040099A (en) * | 1973-07-16 | 1975-04-12 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59196159A (en) * | 1983-04-22 | 1984-11-07 | Ntn Toyo Bearing Co Ltd | Automatic wheel changer |
JPH0418995B2 (en) * | 1983-04-22 | 1992-03-30 | Ntn Toyo Bearing Co Ltd | |
JPS60191761A (en) * | 1984-03-08 | 1985-09-30 | Osaka Seiki Kk | Wheel replacing device for superfinishing machine |
JPH0255192B2 (en) * | 1984-03-08 | 1990-11-26 | Oosaka Seiki Kk |
Also Published As
Publication number | Publication date |
---|---|
JPS5730904B2 (en) | 1982-07-01 |
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