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JPS54112369A - Electric welded steel tube provided with high toughness electric welded zone - Google Patents

Electric welded steel tube provided with high toughness electric welded zone

Info

Publication number
JPS54112369A
JPS54112369A JP2030078A JP2030078A JPS54112369A JP S54112369 A JPS54112369 A JP S54112369A JP 2030078 A JP2030078 A JP 2030078A JP 2030078 A JP2030078 A JP 2030078A JP S54112369 A JPS54112369 A JP S54112369A
Authority
JP
Japan
Prior art keywords
electric welded
steel tube
settled under
welded steel
tube provided
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
JP2030078A
Other languages
Japanese (ja)
Other versions
JPS6260462B2 (en
Inventor
Makoto Sato
Makio Iino
Hirotsugu Haga
Kazuo Aoki
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP2030078A priority Critical patent/JPS54112369A/en
Publication of JPS54112369A publication Critical patent/JPS54112369A/en
Publication of JPS6260462B2 publication Critical patent/JPS6260462B2/ja
Granted legal-status Critical Current

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Abstract

PURPOSE: To titled electric welded steel tube provided with improved quality, safety and reliability, containing a chemical composition consisting of iron as the main part, other usual alloy elements, and inevitable impurities; hereupon, the quantities of S and O in these impure elements and of A-group nonmetallic inclusions are respectively settled under individual specific values.
CONSTITUTION: The electric welded steel tube is formed from th material whose chemical composition consists of iron as the main part, and other usual alloy elememts, that is C, Si, Mn, and if necessary, Ni, Cr, Mo, Cu, and a little quantity of Al, Nb, V, Ti, etc., and inevitable impurities. And in above impure elements, the content of S is settled under 0.002% and O is settled under 0.004%, and besides, the content of A-group nonmetallic inclusions specified by JIS G 0555 is settled under 0.009%. After normal seam welding is worked on this material, the impact value of the electric welded zone can be stably secured above 2.4 kg.m/cm2, depending on the 2 mm V-notch Charpy impact test at the testing temperature -30°C.
COPYRIGHT: (C)1979,JPO&Japio
JP2030078A 1978-02-23 1978-02-23 Electric welded steel tube provided with high toughness electric welded zone Granted JPS54112369A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2030078A JPS54112369A (en) 1978-02-23 1978-02-23 Electric welded steel tube provided with high toughness electric welded zone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2030078A JPS54112369A (en) 1978-02-23 1978-02-23 Electric welded steel tube provided with high toughness electric welded zone

Publications (2)

Publication Number Publication Date
JPS54112369A true JPS54112369A (en) 1979-09-03
JPS6260462B2 JPS6260462B2 (en) 1987-12-16

Family

ID=12023291

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2030078A Granted JPS54112369A (en) 1978-02-23 1978-02-23 Electric welded steel tube provided with high toughness electric welded zone

Country Status (1)

Country Link
JP (1) JPS54112369A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60213366A (en) * 1984-04-09 1985-10-25 Nippon Steel Corp ERW steel pipe with excellent sour resistance
JPS61207548A (en) * 1985-03-13 1986-09-13 Nisshin Steel Co Ltd High strength electric welded steel pipe having satisfactory expandability
JPS61213344A (en) * 1985-03-18 1986-09-22 Kawasaki Steel Corp High toughness seamless steel pipe
JPS62274049A (en) * 1986-05-22 1987-11-28 Nippon Steel Corp Continuous casting steel for ERW pipes with excellent sour resistance and low-temperature toughness
JPH0586438A (en) * 1991-06-14 1993-04-06 Japan Steel Works Ltd:The Structural steel for low temperature

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5118912A (en) * 1974-08-08 1976-02-14 Nippon Steel Corp RENZOKUCHUZOZAINYORU KOKYODODEN HOKOKAN

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5118912A (en) * 1974-08-08 1976-02-14 Nippon Steel Corp RENZOKUCHUZOZAINYORU KOKYODODEN HOKOKAN

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60213366A (en) * 1984-04-09 1985-10-25 Nippon Steel Corp ERW steel pipe with excellent sour resistance
JPS61207548A (en) * 1985-03-13 1986-09-13 Nisshin Steel Co Ltd High strength electric welded steel pipe having satisfactory expandability
JPS61213344A (en) * 1985-03-18 1986-09-22 Kawasaki Steel Corp High toughness seamless steel pipe
JPS62274049A (en) * 1986-05-22 1987-11-28 Nippon Steel Corp Continuous casting steel for ERW pipes with excellent sour resistance and low-temperature toughness
JPH0586438A (en) * 1991-06-14 1993-04-06 Japan Steel Works Ltd:The Structural steel for low temperature

Also Published As

Publication number Publication date
JPS6260462B2 (en) 1987-12-16

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