EP4206338A4 - ELECTRIC RESISTANCE WELDED STEEL PIPE - Google Patents

ELECTRIC RESISTANCE WELDED STEEL PIPE Download PDF

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Publication number
EP4206338A4
EP4206338A4 EP20951521.2A EP20951521A EP4206338A4 EP 4206338 A4 EP4206338 A4 EP 4206338A4 EP 20951521 A EP20951521 A EP 20951521A EP 4206338 A4 EP4206338 A4 EP 4206338A4
Authority
EP
European Patent Office
Prior art keywords
steel pipe
electric resistance
welded steel
resistance welded
electric
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
EP20951521.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4206338A1 (en
Inventor
Kensuke Nagai
Tatsuo Yokoi
Hideto KAWANO
Shunichi Kobayashi
Shuji Iwamoto
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 EP4206338A1 publication Critical patent/EP4206338A1/en
Publication of EP4206338A4 publication Critical patent/EP4206338A4/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/02—Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34—Methods of heating
    • C21D1/42—Induction heating
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/002—Bainite
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)
EP20951521.2A 2020-08-28 2020-08-28 ELECTRIC RESISTANCE WELDED STEEL PIPE Pending EP4206338A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/032636 WO2022044271A1 (ja) 2020-08-28 2020-08-28 電縫鋼管

Publications (2)

Publication Number Publication Date
EP4206338A1 EP4206338A1 (en) 2023-07-05
EP4206338A4 true EP4206338A4 (en) 2023-10-25

Family

ID=76310148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20951521.2A Pending EP4206338A4 (en) 2020-08-28 2020-08-28 ELECTRIC RESISTANCE WELDED STEEL PIPE

Country Status (3)

Country Link
EP (1) EP4206338A4 (ja)
JP (1) JP6885524B1 (ja)
WO (1) WO2022044271A1 (ja)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0699773A1 (en) * 1994-08-05 1996-03-06 Nkk Corporation Method for manufacturing electric-resistance-welded steel pipe
EP0739678A1 (en) * 1995-04-28 1996-10-30 Nkk Corporation Method for producing an electric-resistance-welded steel pipe
JP2013139051A (ja) * 2011-12-08 2013-07-18 Jfe Steel Corp 低温靭性に優れる電縫鋼管の製造方法
EP2752499A1 (en) * 2011-08-23 2014-07-09 Nippon Steel & Sumitomo Metal Corporation Thick-walled electric-resistance-welded steel pipe and process for producing same
WO2020170333A1 (ja) * 2019-02-19 2020-08-27 日本製鉄株式会社 ラインパイプ用電縫鋼管

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4940882B2 (ja) 2005-10-18 2012-05-30 Ｊｆｅスチール株式会社 厚手高強度熱延鋼板およびその製造方法
JP4978146B2 (ja) 2005-10-18 2012-07-18 Ｊｆｅスチール株式会社 厚手高強度熱延鋼板およびその製造方法
KR20160078600A (ko) * 2014-12-24 2016-07-05 주식회사 포스코 확관성이 우수한 파이프용 열연강판 및 그 제조방법
JP6213703B1 (ja) 2016-03-22 2017-10-18 新日鐵住金株式会社 ラインパイプ用電縫鋼管
KR102129296B1 (ko) * 2016-07-06 2020-07-03 닛폰세이테츠 가부시키가이샤 라인 파이프용 전봉 강관
JP7206793B2 (ja) * 2018-10-22 2023-01-18 日本製鉄株式会社 ラインパイプ用電縫鋼管、及び、ラインパイプ用熱延鋼板
JP6693610B1 (ja) * 2019-08-23 2020-05-13 日本製鉄株式会社 ラインパイプ用電縫鋼管

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0699773A1 (en) * 1994-08-05 1996-03-06 Nkk Corporation Method for manufacturing electric-resistance-welded steel pipe
EP0739678A1 (en) * 1995-04-28 1996-10-30 Nkk Corporation Method for producing an electric-resistance-welded steel pipe
EP2752499A1 (en) * 2011-08-23 2014-07-09 Nippon Steel & Sumitomo Metal Corporation Thick-walled electric-resistance-welded steel pipe and process for producing same
JP2013139051A (ja) * 2011-12-08 2013-07-18 Jfe Steel Corp 低温靭性に優れる電縫鋼管の製造方法
WO2020170333A1 (ja) * 2019-02-19 2020-08-27 日本製鉄株式会社 ラインパイプ用電縫鋼管

Also Published As

Publication number Publication date
JPWO2022044271A1 (ja) 2022-03-03
WO2022044271A1 (ja) 2022-03-03
JP6885524B1 (ja) 2021-06-16
EP4206338A1 (en) 2023-07-05

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RIC1 Information provided on ipc code assigned before grant

Ipc: C21D 9/46 20060101ALI20230915BHEP

Ipc: C22C 38/28 20060101ALI20230915BHEP

Ipc: C22C 38/26 20060101ALI20230915BHEP

Ipc: C22C 38/16 20060101ALI20230915BHEP

Ipc: C22C 38/14 20060101ALI20230915BHEP

Ipc: C22C 38/12 20060101ALI20230915BHEP

Ipc: C22C 38/08 20060101ALI20230915BHEP

Ipc: C22C 38/04 20060101ALI20230915BHEP

Ipc: C22C 38/02 20060101ALI20230915BHEP

Ipc: C21D 8/02 20060101ALI20230915BHEP

Ipc: C21D 1/42 20060101ALI20230915BHEP

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Ipc: C22C 38/00 20060101ALI20230915BHEP

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