JPS57199577A - Production of 21/4cr-1mo welded steel pipe - Google Patents

Production of 21/4cr-1mo welded steel pipe

Info

Publication number
JPS57199577A
JPS57199577A JP8432281A JP8432281A JPS57199577A JP S57199577 A JPS57199577 A JP S57199577A JP 8432281 A JP8432281 A JP 8432281A JP 8432281 A JP8432281 A JP 8432281A JP S57199577 A JPS57199577 A JP S57199577A
Authority
JP
Japan
Prior art keywords
welding
equations
subjected
steel pipe
thicknesses
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
Application number
JP8432281A
Other languages
Japanese (ja)
Other versions
JPH021598B2 (en
Inventor
Tadaaki Taira
Kiyoteru Hirabayashi
Hiroyuki Ichinose
Kazuyoshi Ume
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP8432281A priority Critical patent/JPS57199577A/en
Publication of JPS57199577A publication Critical patent/JPS57199577A/en
Publication of JPH021598B2 publication Critical patent/JPH021598B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/23—Arc welding or cutting taking account of the properties of the materials to be welded

Abstract

PURPOSE:To produce a Cr-Mo type welded steel pipe of high weld hardenability and remarkably immune from low temp. cracking and transverse cracking easily by subjecting the inside and outside surface of a Cr-Mo type steel plate to SAW or single run welding wherein preceding welding is MIG and succeeding one is SAW under the conditions specified by the equations. CONSTITUTION:A 21/4Cr-1Mo steel plate is formed to a tubular shape, and while the quantity of weld heat input at the inside and outside surfaces thereof is controlled in the range specified by the equations in the relation with the thicknesses of the welding plates, these surfaces are subjected to submerged arc welding or to the single run welding wherein the preceding welding is large current MIG and the succeding one is submerged arc welding. In the equations, H, I are weld heat inputs Kj/cm (>=15), W, T are plate thicknesses (<=40). If necessary, the pipe is subjected to expanding and sizing properly followed by stress relief annealing.
JP8432281A 1981-06-03 1981-06-03 Production of 21/4cr-1mo welded steel pipe Granted JPS57199577A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8432281A JPS57199577A (en) 1981-06-03 1981-06-03 Production of 21/4cr-1mo welded steel pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8432281A JPS57199577A (en) 1981-06-03 1981-06-03 Production of 21/4cr-1mo welded steel pipe

Publications (2)

Publication Number Publication Date
JPS57199577A true JPS57199577A (en) 1982-12-07
JPH021598B2 JPH021598B2 (en) 1990-01-12

Family

ID=13827270

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8432281A Granted JPS57199577A (en) 1981-06-03 1981-06-03 Production of 21/4cr-1mo welded steel pipe

Country Status (1)

Country Link
JP (1) JPS57199577A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102233473A (en) * 2010-04-30 2011-11-09 华泰(南通)船务有限公司 Assembling and welding process for plate unit of ship
CN103182591A (en) * 2013-03-12 2013-07-03 杭州联源重工机械有限公司 Welding process for ultra-thick high-strength quenched and tempered S500Q steel plates for hydraulic turbine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5329658A (en) * 1976-09-01 1978-03-20 Hitachi Ltd Surplus liquid recovery unit
JPS53119240A (en) * 1977-03-29 1978-10-18 Nippon Steel Corp Automatic arc welding method for high efficiency multielectrodes of low temperature high toughness steel
JPS5411790A (en) * 1977-06-29 1979-01-29 Hitachi Ltd Sodium leakage detector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5329658A (en) * 1976-09-01 1978-03-20 Hitachi Ltd Surplus liquid recovery unit
JPS53119240A (en) * 1977-03-29 1978-10-18 Nippon Steel Corp Automatic arc welding method for high efficiency multielectrodes of low temperature high toughness steel
JPS5411790A (en) * 1977-06-29 1979-01-29 Hitachi Ltd Sodium leakage detector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102233473A (en) * 2010-04-30 2011-11-09 华泰(南通)船务有限公司 Assembling and welding process for plate unit of ship
CN103182591A (en) * 2013-03-12 2013-07-03 杭州联源重工机械有限公司 Welding process for ultra-thick high-strength quenched and tempered S500Q steel plates for hydraulic turbine

Also Published As

Publication number Publication date
JPH021598B2 (en) 1990-01-12

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