EP3608434A4 - As-roll electric resistance-welded steel pipe for line pipe, and hot-rolled steel sheet - Google Patents

As-roll electric resistance-welded steel pipe for line pipe, and hot-rolled steel sheet Download PDF

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Publication number
EP3608434A4
EP3608434A4 EP17914739.2A EP17914739A EP3608434A4 EP 3608434 A4 EP3608434 A4 EP 3608434A4 EP 17914739 A EP17914739 A EP 17914739A EP 3608434 A4 EP3608434 A4 EP 3608434A4
Authority
EP
European Patent Office
Prior art keywords
pipe
hot
electric resistance
steel sheet
rolled 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.)
Granted
Application number
EP17914739.2A
Other languages
German (de)
French (fr)
Other versions
EP3608434A1 (en
EP3608434B1 (en
Inventor
Kenzo TASHIMA
Shinya Sakamoto
Shunichi Kobayashi
Hideto KAWANO
Takaaki Fukushi
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
Publication of EP3608434A1 publication Critical patent/EP3608434A1/en
Publication of EP3608434A4 publication Critical patent/EP3608434A4/en
Application granted granted Critical
Publication of EP3608434B1 publication Critical patent/EP3608434B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/001Ferrous alloys, e.g. steel alloys containing N
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/005Heat treatment of ferrous alloys containing Mn
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0205Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226Hot rolling
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/10Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • C21D8/105Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/04Ferrous alloys, e.g. steel alloys containing manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/06Ferrous alloys, e.g. steel alloys containing aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/12Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/14Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/002Bainite
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/005Ferrite
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/001Heat treatment of ferrous alloys containing Ni
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/008Heat treatment of ferrous alloys containing Si

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Steel (AREA)
EP17914739.2A 2017-06-22 2017-06-22 As-rolled electric resistance-welded steel pipe for line pipe, and hot-rolled steel sheet Active EP3608434B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/023086 WO2018235244A1 (en) 2017-06-22 2017-06-22 As-roll electric resistance-welded steel pipe for line pipe, and hot-rolled steel sheet

Publications (3)

Publication Number Publication Date
EP3608434A1 EP3608434A1 (en) 2020-02-12
EP3608434A4 true EP3608434A4 (en) 2020-09-02
EP3608434B1 EP3608434B1 (en) 2021-06-02

Family

ID=60989198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17914739.2A Active EP3608434B1 (en) 2017-06-22 2017-06-22 As-rolled electric resistance-welded steel pipe for line pipe, and hot-rolled steel sheet

Country Status (4)

Country Link
EP (1) EP3608434B1 (en)
JP (1) JP6260757B1 (en)
CN (1) CN110546289A (en)
WO (1) WO2018235244A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7206793B2 (en) * 2018-10-22 2023-01-18 日本製鉄株式会社 Electric resistance welded steel pipes for line pipes and hot-rolled steel plates for line pipes
JP7206792B2 (en) * 2018-10-22 2023-01-18 日本製鉄株式会社 Steel for line pipes
JP7159785B2 (en) * 2018-10-22 2022-10-25 日本製鉄株式会社 Steel for line pipes
KR102236852B1 (en) * 2018-11-30 2021-04-06 주식회사 포스코 Steel plate for structure having excellent low yield ratio property and low temperature toughness and manufacturing method thereof
JP6693610B1 (en) * 2019-08-23 2020-05-13 日本製鉄株式会社 ERW steel pipe for line pipe
JP7315834B2 (en) * 2019-09-10 2023-07-27 日本製鉄株式会社 Electric resistance welded steel pipes for line pipes and hot-rolled steel plates for line pipes
KR20220069995A (en) * 2019-10-31 2022-05-27 제이에프이 스틸 가부시키가이샤 Electric resistance welded pipe and manufacturing method thereof, line pipe and building structure
CN114729426B (en) * 2019-11-20 2023-06-23 杰富意钢铁株式会社 Hot-rolled steel sheet for resistance-welded steel pipe, method for producing same, line pipe, and building structure
EP4066954A4 (en) * 2020-02-10 2023-07-05 Nippon Steel Corporation Line pipe-use electric resistance welded steel pipe
WO2021200402A1 (en) * 2020-04-02 2021-10-07 Jfeスチール株式会社 Electroseamed steel pipe, and method for manufacturing same
US20240026999A1 (en) 2020-10-05 2024-01-25 Jfe Steel Corporation Electric resistance welded steel pipe and method for manufacturing the same
KR20240053606A (en) * 2021-09-29 2024-04-24 제이에프이 스틸 가부시키가이샤 Rectangular steel pipe and its manufacturing method, hot rolled steel sheet and its manufacturing method, and building structures

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005290546A (en) * 2004-03-09 2005-10-20 Jfe Steel Kk Hot rolled steel sheet for low yr type electric resistance welded steel tube having excellent aging resistance and method for manufacturing the same
WO2013027779A1 (en) * 2011-08-23 2013-02-28 新日鐵住金株式会社 Thick-walled electric-resistance-welded steel pipe and process for producing same
WO2014051119A1 (en) * 2012-09-27 2014-04-03 新日鐵住金株式会社 Electric resistance welded steel pipe
WO2018179169A1 (en) * 2017-03-29 2018-10-04 新日鐵住金株式会社 As-rolled type electric-resistance-welded steel pipe for line pipes

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3301348B2 (en) * 1997-04-24 2002-07-15 住友金属工業株式会社 Manufacturing method of hot-rolled high-tensile steel sheet
JP4853075B2 (en) * 2006-03-28 2012-01-11 住友金属工業株式会社 Hot-rolled steel sheet for hydroforming and its manufacturing method, and electric resistance welded steel pipe for hydroforming
JP5292784B2 (en) * 2006-11-30 2013-09-18 新日鐵住金株式会社 Welded steel pipe for high-strength line pipe excellent in low temperature toughness and method for producing the same
JP5000447B2 (en) * 2007-02-13 2012-08-15 新日本製鐵株式会社 High strength ERW line pipe
KR101302298B1 (en) 2010-06-30 2013-09-03 신닛테츠스미킨 카부시키카이샤 Hot-rolled steel sheet and method for producing same
KR101641450B1 (en) * 2012-04-13 2016-07-20 제이에프이 스틸 가부시키가이샤 High-strength thick-walled electric-resistance-welded steel pipe having excellent low-temperature toughness, and method for manufacturing same
JP6160574B2 (en) * 2014-07-31 2017-07-12 Jfeスチール株式会社 High-strength hot-rolled steel sheet excellent in strength-uniform elongation balance and method for producing the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005290546A (en) * 2004-03-09 2005-10-20 Jfe Steel Kk Hot rolled steel sheet for low yr type electric resistance welded steel tube having excellent aging resistance and method for manufacturing the same
JP4788146B2 (en) * 2004-03-09 2011-10-05 Jfeスチール株式会社 Hot rolled steel sheet for low YR type ERW welded steel pipe excellent in aging resistance and method for producing the same
WO2013027779A1 (en) * 2011-08-23 2013-02-28 新日鐵住金株式会社 Thick-walled electric-resistance-welded steel pipe and process for producing same
WO2014051119A1 (en) * 2012-09-27 2014-04-03 新日鐵住金株式会社 Electric resistance welded steel pipe
WO2018179169A1 (en) * 2017-03-29 2018-10-04 新日鐵住金株式会社 As-rolled type electric-resistance-welded steel pipe for line pipes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2018235244A1 *

Also Published As

Publication number Publication date
EP3608434A1 (en) 2020-02-12
CN110546289A (en) 2019-12-06
EP3608434B1 (en) 2021-06-02
JPWO2018235244A1 (en) 2019-06-27
JP6260757B1 (en) 2018-01-17
WO2018235244A1 (en) 2018-12-27

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