JPS5573494A - Welding method of steel pipe - Google Patents

Welding method of steel pipe

Info

Publication number
JPS5573494A
JPS5573494A JP14540978A JP14540978A JPS5573494A JP S5573494 A JPS5573494 A JP S5573494A JP 14540978 A JP14540978 A JP 14540978A JP 14540978 A JP14540978 A JP 14540978A JP S5573494 A JPS5573494 A JP S5573494A
Authority
JP
Japan
Prior art keywords
welding
strength
pipe
butt
steel
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
Application number
JP14540978A
Other languages
Japanese (ja)
Inventor
Seishin Kirihara
Katsuyuki Imai
Tsutomu Konuma
Shozo Tanida
Toshimi Matsumoto
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14540978A priority Critical patent/JPS5573494A/en
Publication of JPS5573494A publication Critical patent/JPS5573494A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To improve stress corrosion cracking resistance characteristic by welding the pipe inside surface side of butt parts with welding material of lower strength then welding the remaining outer side with welding material having strength higher than that of said welding material while cooling the pipe inside.
CONSTITUTION: In the case of butt welding steel pipes 1 of high tension steel, low alloy steel, austenite base stainless steel, etc., the pipe inside surface side of the butt part of the steel pipes 1 is welded with welding material of strength lower than that of base metals. Thence, while cooling the pipe inside by flowing cooling medium into the pipes, the outer side surfaces of the remaining butt part is welded. In this case, welding material 3 of strength higher than that of the foregoing welding material 2, or welding material of preferably 3kg/mm2 or more in strength differences thereof or welding material having strength equivalent to that of base metals is used.
COPYRIGHT: (C)1980,JPO&Japio
JP14540978A 1978-11-27 1978-11-27 Welding method of steel pipe Pending JPS5573494A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14540978A JPS5573494A (en) 1978-11-27 1978-11-27 Welding method of steel pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14540978A JPS5573494A (en) 1978-11-27 1978-11-27 Welding method of steel pipe

Publications (1)

Publication Number Publication Date
JPS5573494A true JPS5573494A (en) 1980-06-03

Family

ID=15384582

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14540978A Pending JPS5573494A (en) 1978-11-27 1978-11-27 Welding method of steel pipe

Country Status (1)

Country Link
JP (1) JPS5573494A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5605283A (en) * 1991-12-03 1997-02-25 Fronius Schweissmaschinen Kg. Austria Weld joint between two rails arranged behind each other along a rail track

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5605283A (en) * 1991-12-03 1997-02-25 Fronius Schweissmaschinen Kg. Austria Weld joint between two rails arranged behind each other along a rail track

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