JPS54107462A - Welding method of austenitic stainless steel pipe - Google Patents
Welding method of austenitic stainless steel pipeInfo
- Publication number
- JPS54107462A JPS54107462A JP1295778A JP1295778A JPS54107462A JP S54107462 A JPS54107462 A JP S54107462A JP 1295778 A JP1295778 A JP 1295778A JP 1295778 A JP1295778 A JP 1295778A JP S54107462 A JPS54107462 A JP S54107462A
- Authority
- JP
- Japan
- Prior art keywords
- welded
- solid solution
- pipe
- high frequency
- build
- 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
- Arc Welding In General (AREA)
Abstract
PURPOSE: Pipe internal surface is preliminary build up welded at near weld groove portion using a sepecified auxiliary welding material. The welded portion is subjected to solid solution treatment, and then butt welded by using the same auxiliary welding material. The welded portion is heated from the outside of the pipe periphery by high frequency to be again subjected to solid solution treatment. The process provides welded zone free of stress corrosion cracking.
CONSTITUTION: The butting portion of the pipe 4 internal surface is build up 5 welded using auxiliary welding material D309 Mo L resistant to stress corrosion cracking. Since the welding weakens the ends 6 of the welded area, it is restored by solid solution treatment. Then, the material is grooved 7, and butt welded using D309MoL. Since the as-welded D309 MoL has a tendency of brittlement, it is made into solid solution by high frequency heating from the outside of the pipe periphery. At this heating, the pipe internal is cooled by water thereby to provide welded joint resistant to stress corrosion cracking. The width 9 of the build up welding must be wider than heat affected zone on high frequency heating.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1295778A JPS54107462A (en) | 1978-02-09 | 1978-02-09 | Welding method of austenitic stainless steel pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1295778A JPS54107462A (en) | 1978-02-09 | 1978-02-09 | Welding method of austenitic stainless steel pipe |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54107462A true JPS54107462A (en) | 1979-08-23 |
Family
ID=11819737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1295778A Pending JPS54107462A (en) | 1978-02-09 | 1978-02-09 | Welding method of austenitic stainless steel pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54107462A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103192191A (en) * | 2013-04-07 | 2013-07-10 | 苏州热工研究院有限公司 | Method for improving corrosion resistance of metal welding joint contacting with corrosive media |
-
1978
- 1978-02-09 JP JP1295778A patent/JPS54107462A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103192191A (en) * | 2013-04-07 | 2013-07-10 | 苏州热工研究院有限公司 | Method for improving corrosion resistance of metal welding joint contacting with corrosive media |
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