JPS5511156A - Steel material for boiler improved workability - Google Patents
Steel material for boiler improved workabilityInfo
- Publication number
- JPS5511156A JPS5511156A JP8367778A JP8367778A JPS5511156A JP S5511156 A JPS5511156 A JP S5511156A JP 8367778 A JP8367778 A JP 8367778A JP 8367778 A JP8367778 A JP 8367778A JP S5511156 A JPS5511156 A JP S5511156A
- Authority
- JP
- Japan
- Prior art keywords
- boiler
- plate
- mold
- outer layer
- acid soluble
- 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 economically improve a high temperature strength, workability and toughness, by containing a specific quantity of acid soluble Al in a fixed extent of thickness on the outer layer of one or both faces of normal steel material for boiler.
CONSTITUTION: More than 0.01% or acid soluble Al is contained on one side, in case of steel plate for boiler and less than 0.1% of acid soluble Al is contained on both inner and outer side, in case of steel tube for boiler, in the extent being the thickness of outer layer more than 200μ to one side and less than 1/2 of total plate of both faces sum. In order to contain Al in the outer layer, Al foil, Al plate or Fe-Al plate, is sticked on the inner face of mold or molten metal is casted in a mold after applying or spraying Al powder and on occasion of carrying out continuous casting, ingot is made by blowing Al powder with inactive gas against the boundary face of the mold and molten metal and then, steel plate or tube is manufactured.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8367778A JPS5511156A (en) | 1978-07-10 | 1978-07-10 | Steel material for boiler improved workability |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8367778A JPS5511156A (en) | 1978-07-10 | 1978-07-10 | Steel material for boiler improved workability |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5511156A true JPS5511156A (en) | 1980-01-25 |
Family
ID=13809103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8367778A Pending JPS5511156A (en) | 1978-07-10 | 1978-07-10 | Steel material for boiler improved workability |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5511156A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58185693A (en) * | 1982-04-23 | 1983-10-29 | Koyo Seiko Co Ltd | Diurea grease and its preparation |
JPS62250097A (en) * | 1986-04-22 | 1987-10-30 | Nippon Oil Co Ltd | Diurea grease composition |
JPH02242896A (en) * | 1982-04-23 | 1990-09-27 | Koyo Seiko Co Ltd | Production of diurea-based grease |
US8703678B2 (en) | 2006-10-06 | 2014-04-22 | Idemitsu Kosan Co., Ltd. | Grease |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52131919A (en) * | 1976-04-28 | 1977-11-05 | Nippon Steel Corp | Production of a1-s# killed steel plate by direct fot rolling of continuous cast slab |
-
1978
- 1978-07-10 JP JP8367778A patent/JPS5511156A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52131919A (en) * | 1976-04-28 | 1977-11-05 | Nippon Steel Corp | Production of a1-s# killed steel plate by direct fot rolling of continuous cast slab |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58185693A (en) * | 1982-04-23 | 1983-10-29 | Koyo Seiko Co Ltd | Diurea grease and its preparation |
JPH02242896A (en) * | 1982-04-23 | 1990-09-27 | Koyo Seiko Co Ltd | Production of diurea-based grease |
JPH0369960B2 (en) * | 1982-04-23 | 1991-11-05 | Koyo Seiko Kk | |
JPS62250097A (en) * | 1986-04-22 | 1987-10-30 | Nippon Oil Co Ltd | Diurea grease composition |
US8703678B2 (en) | 2006-10-06 | 2014-04-22 | Idemitsu Kosan Co., Ltd. | Grease |
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