JPS6425916A - Manufacture of high-strength steel for electric resistance welded tube excellent in toughness at low temperature - Google Patents

Manufacture of high-strength steel for electric resistance welded tube excellent in toughness at low temperature

Info

Publication number
JPS6425916A
JPS6425916A JP18166487A JP18166487A JPS6425916A JP S6425916 A JPS6425916 A JP S6425916A JP 18166487 A JP18166487 A JP 18166487A JP 18166487 A JP18166487 A JP 18166487A JP S6425916 A JPS6425916 A JP S6425916A
Authority
JP
Japan
Prior art keywords
steel
temp
toughness
welded tube
manufacture
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
JP18166487A
Other languages
Japanese (ja)
Inventor
Naoki Konno
Hiroshi Murayama
Motofumi Koyuba
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 JP18166487A priority Critical patent/JPS6425916A/en
Publication of JPS6425916A publication Critical patent/JPS6425916A/en
Pending legal-status Critical Current

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  • Heat Treatment Of Steel (AREA)

Abstract

PURPOSE:To manufacture a steel for electric resistance welded tube combining toughness at low temp. with high strength without adding alloying elements, by subjecting a steel in which respective contents of C, Si, Mn, etc., are specified to hot rolling at a specific temp. and also controlling cooling velocity and winding temp. CONSTITUTION:The hot rolling of a steel which has a composition containing, as principal components, 0.01-0.07%, by weight, C, <=0.5% Si, and 0.5-2.0% Mn, further containing one or more kinds among <=0.060% Nb, <=0.10% V, and <=0.050% Ti, and having the balance Fe with inevitable impurities is completed at Ar3 or above point. Subsequently, cooling is applied to the hot-rolled plate from a temp. of the Ar3 point or above at <=20 deg.C/sec cooling rate to form fine bainite and island martensite, followed by winding at <=250 deg.C. By using this steel, the high-strength seam welded tube excellent in toughness at low temp. can be manufactured while obviating the necessity of heat treatment over the whole tube.
JP18166487A 1987-07-21 1987-07-21 Manufacture of high-strength steel for electric resistance welded tube excellent in toughness at low temperature Pending JPS6425916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18166487A JPS6425916A (en) 1987-07-21 1987-07-21 Manufacture of high-strength steel for electric resistance welded tube excellent in toughness at low temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18166487A JPS6425916A (en) 1987-07-21 1987-07-21 Manufacture of high-strength steel for electric resistance welded tube excellent in toughness at low temperature

Publications (1)

Publication Number Publication Date
JPS6425916A true JPS6425916A (en) 1989-01-27

Family

ID=16104709

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18166487A Pending JPS6425916A (en) 1987-07-21 1987-07-21 Manufacture of high-strength steel for electric resistance welded tube excellent in toughness at low temperature

Country Status (1)

Country Link
JP (1) JPS6425916A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004001076A1 (en) * 2002-06-19 2003-12-31 Nippon Steel Corporation Oil well steel pipe excellent in crushing resistance characteristics after pipe expansion
US7501030B2 (en) 2003-03-27 2009-03-10 Jfe Steel Corporation Hot-rolled steel strip for high strength electric resistance welding pipe and manufacturing method thereof
WO2010013848A1 (en) * 2008-07-31 2010-02-04 Ｊｆｅスチール株式会社 Thick, high tensile-strength hot-rolled steel sheets with excellent low temperature toughness and manufacturing method therefor
JP2010037567A (en) * 2008-07-31 2010-02-18 Jfe Steel Corp Thick, high-tension hot-rolled steel sheet excellent in low-temperature toughness, and producing method therefor
JP2010196155A (en) * 2009-01-30 2010-09-09 Jfe Steel Corp Thick, high tensile-strength hot-rolled steel sheet having excellent low temperature toughness and manufacturing method therefor
JP2010196156A (en) * 2009-01-30 2010-09-09 Jfe Steel Corp Thick, high tensile-strength hot-rolled steel sheet having excellent low temperature toughness and manufacturing method therefor
US8784577B2 (en) 2009-01-30 2014-07-22 Jfe Steel Corporation Thick high-tensile-strength hot-rolled steel sheet having excellent low-temperature toughness and manufacturing method thereof
US9809869B2 (en) 2009-01-30 2017-11-07 Jfe Steel Corporation Thick-walled high-strength hot rolled steel sheet having excellent hydrogen induced cracking resistance and manufacturing method thereof
CN108504931A (en) * 2018-05-09 2018-09-07 马钢(集团)控股有限公司 A kind of submerged pipeline steel and its production method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5947323A (en) * 1982-09-10 1984-03-17 Nippon Steel Corp Production of high tension steel having excellent toughness in weld zone and property for stopping propagation of brittle fracture
JPS6289815A (en) * 1985-10-15 1987-04-24 Kobe Steel Ltd Manufacture of high yield point steel for low temperature

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5947323A (en) * 1982-09-10 1984-03-17 Nippon Steel Corp Production of high tension steel having excellent toughness in weld zone and property for stopping propagation of brittle fracture
JPS6289815A (en) * 1985-10-15 1987-04-24 Kobe Steel Ltd Manufacture of high yield point steel for low temperature

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1516934A1 (en) * 2002-06-19 2005-03-23 Nippon Steel Corporation Oil well steel pipe excellent in crushing resistance characteristics after pipe expansion
US7459033B2 (en) 2002-06-19 2008-12-02 Nippon Steel Corporation Oil country tubular goods excellent in collapse characteristics after expansion and method of production thereof
WO2004001076A1 (en) * 2002-06-19 2003-12-31 Nippon Steel Corporation Oil well steel pipe excellent in crushing resistance characteristics after pipe expansion
US7501030B2 (en) 2003-03-27 2009-03-10 Jfe Steel Corporation Hot-rolled steel strip for high strength electric resistance welding pipe and manufacturing method thereof
RU2493284C2 (en) * 2008-07-31 2013-09-20 ДжФЕ СТИЛ КОРПОРЕЙШН Thick-walled high-strength hot-rolled steel plate with excellent low-temperature impact strength and its production method
WO2010013848A1 (en) * 2008-07-31 2010-02-04 Ｊｆｅスチール株式会社 Thick, high tensile-strength hot-rolled steel sheets with excellent low temperature toughness and manufacturing method therefor
JP2010037567A (en) * 2008-07-31 2010-02-18 Jfe Steel Corp Thick, high-tension hot-rolled steel sheet excellent in low-temperature toughness, and producing method therefor
US9493865B2 (en) 2008-07-31 2016-11-15 Jfe Steel Corporation Thick-walled high-strength hot rolled steel sheet with excellent low-temperature toughness and method of producing same
JP2010196155A (en) * 2009-01-30 2010-09-09 Jfe Steel Corp Thick, high tensile-strength hot-rolled steel sheet having excellent low temperature toughness and manufacturing method therefor
US8784577B2 (en) 2009-01-30 2014-07-22 Jfe Steel Corporation Thick high-tensile-strength hot-rolled steel sheet having excellent low-temperature toughness and manufacturing method thereof
JP2010196156A (en) * 2009-01-30 2010-09-09 Jfe Steel Corp Thick, high tensile-strength hot-rolled steel sheet having excellent low temperature toughness and manufacturing method therefor
US9580782B2 (en) 2009-01-30 2017-02-28 Jfe Steel Corporation Thick high-tensile-strength hot-rolled steel sheet having excellent low-temperature toughness and manufacturing method thereof
US9809869B2 (en) 2009-01-30 2017-11-07 Jfe Steel Corporation Thick-walled high-strength hot rolled steel sheet having excellent hydrogen induced cracking resistance and manufacturing method thereof
CN108504931A (en) * 2018-05-09 2018-09-07 马钢(集团)控股有限公司 A kind of submerged pipeline steel and its production method
CN108504931B (en) * 2018-05-09 2019-07-30 马钢(集团)控股有限公司 A kind of submerged pipeline steel and its production method

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