JP6319539B1 - 鋼管及び鋼板 - Google Patents

鋼管及び鋼板 Download PDF

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Publication number
JP6319539B1
JP6319539B1 JP2018502833A JP2018502833A JP6319539B1 JP 6319539 B1 JP6319539 B1 JP 6319539B1 JP 2018502833 A JP2018502833 A JP 2018502833A JP 2018502833 A JP2018502833 A JP 2018502833A JP 6319539 B1 JP6319539 B1 JP 6319539B1
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metal structure
steel
steel plate
surface layer
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Japanese (ja)
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JPWO2019058420A1 (ja
Inventor
篠原 康浩
康浩 篠原
原 卓也
卓也 原
潔 海老原
潔 海老原
一輝 筒井
一輝 筒井
服部 豊
豊 服部
晃 橋本
晃 橋本
望 阿部
望 阿部
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Nippon Steel Corp
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Nippon Steel Corp
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • 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
    • C21D8/10Modifying 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
    • C21D9/085Cooling or quenching
    • 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
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/002Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/005Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/08Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/16Ferrous alloys, e.g. steel alloys containing copper
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/26Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/28Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • C21D1/19Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • 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
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/008Martensite
    • 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
    • C21D8/0247Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling

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  • 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)
JP2018502833A 2017-09-19 2017-09-19 鋼管及び鋼板 Active JP6319539B1 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/033706 WO2019058420A1 (ja) 2017-09-19 2017-09-19 鋼管及び鋼板

Publications (2)

Publication Number Publication Date
JP6319539B1 true JP6319539B1 (ja) 2018-05-09
JPWO2019058420A1 JPWO2019058420A1 (ja) 2019-11-07

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Country Status (5)

Country Link
EP (1) EP3686305A4 (zh)
JP (1) JP6319539B1 (zh)
KR (1) KR102364255B1 (zh)
CN (1) CN111094608B (zh)
WO (1) WO2019058420A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6460297B1 (ja) * 2018-06-29 2019-01-30 新日鐵住金株式会社 鋼管及び鋼板
JP2020063500A (ja) * 2018-10-19 2020-04-23 日本製鉄株式会社 Uoe鋼管用鋼板およびその製造方法
WO2021176590A1 (ja) * 2020-03-04 2021-09-10 日本製鉄株式会社 鋼管および鋼板

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102551615B1 (ko) * 2019-03-29 2023-07-05 제이에프이 스틸 가부시키가이샤 전봉 강관 및 그의 제조 방법, 그리고 강관 말뚝
JP7295470B2 (ja) * 2020-01-17 2023-06-21 日本製鉄株式会社 鋼板および鋼管

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007016302A (ja) * 2005-06-08 2007-01-25 Jfe Steel Kk 耐ssc特性に優れた高張力鋼板の製造方法
US20070089813A1 (en) * 2003-04-25 2007-04-26 Tubos De Acero Mexico S.A. Seamless steel tube which is intended to be used as a guide pipe and production method thereof
JP2008101242A (ja) * 2006-10-19 2008-05-01 Jfe Steel Kk 耐hic特性に優れたラインパイプ用高強度鋼板およびその製造方法
CN102719745A (zh) * 2012-06-25 2012-10-10 宝山钢铁股份有限公司 优良抗hic、ssc的高强低温用钢及其制造方法
JP2013023714A (ja) * 2011-07-19 2013-02-04 Jfe Steel Corp Sr後の溶接部靱性に優れた低降伏比耐hic溶接鋼管およびその製造方法
JP2015190026A (ja) * 2014-03-28 2015-11-02 Jfeスチール株式会社 ラインパイプ用厚肉高強度電縫鋼管およびその製造方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6033310A (ja) 1983-07-30 1985-02-20 Nippon Steel Corp 耐水素誘起割れ性及び耐硫化物応力腐食割れ性の優れた鋼板の製造方法
JPS62112722A (ja) 1985-11-13 1987-05-23 Nippon Steel Corp 耐水素誘起割れ性及び耐硫化物応力腐食割れ性の優れた鋼板の製造方法
JPS631369A (ja) 1986-06-20 1988-01-06 Fuji Electric Co Ltd 直流コモンコンバ−タの切換え制御回路
JP5292784B2 (ja) * 2006-11-30 2013-09-18 新日鐵住金株式会社 低温靱性に優れた高強度ラインパイプ用溶接鋼管及びその製造方法
CN101545077B (zh) * 2008-03-24 2011-01-19 宝山钢铁股份有限公司 一种低温用钢及其制造方法
CN102691006B (zh) * 2011-03-23 2013-12-25 宝山钢铁股份有限公司 抗高回火参数sr脆化的低温镍钢及其制造方法
CN102691007B (zh) * 2011-03-23 2013-09-04 宝山钢铁股份有限公司 抗高回火参数pwht脆化的低温用特厚钢板及制造方法
CN102154593B (zh) * 2011-05-26 2013-01-16 天津钢管集团股份有限公司 X80钢级抗腐蚀低温无缝管线管
WO2013027779A1 (ja) * 2011-08-23 2013-02-28 新日鐵住金株式会社 厚肉電縫鋼管及びその製造方法
JP5870665B2 (ja) * 2011-12-08 2016-03-01 Jfeスチール株式会社 耐硫化物応力腐食割れ性に優れた引張強度600MPa以上の高強度溶接鋼管
JP5565420B2 (ja) * 2012-02-02 2014-08-06 新日鐵住金株式会社 ラインパイプ用uoe鋼管
JP5516784B2 (ja) * 2012-03-29 2014-06-11 Jfeスチール株式会社 低降伏比高強度鋼板およびその製造方法並びにそれを用いた高強度溶接鋼管
CN104024461B (zh) * 2012-03-30 2016-04-06 新日铁住金株式会社 抗氢诱发裂纹性优良的高强度管道用钢管和其所使用的高强度管道用钢板、以及它们的制造方法
CN103540867B (zh) * 2013-10-07 2015-10-28 宝鸡石油钢管有限责任公司 一种抗硫化氢应力腐蚀的x80级直缝埋弧焊管及其制造方法
KR20170043662A (ko) * 2014-09-25 2017-04-21 제이에프이 스틸 가부시키가이샤 전기 저항 용접 강관용 강대 및 전기 저항 용접 강관 그리고 전기 저항 용접 강관용 강대의 제조 방법
JP6394261B2 (ja) * 2014-10-14 2018-09-26 新日鐵住金株式会社 油井用電縫鋼管及びその製造方法
CN105543690A (zh) * 2016-01-19 2016-05-04 天津钢管集团股份有限公司 具有抗大应变的415spdf以上钢级海底无缝管线管
CN105648327B (zh) * 2016-02-16 2018-09-04 山东钢铁股份有限公司 一种小压缩比抗hic与ssc的管线钢板及制备方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070089813A1 (en) * 2003-04-25 2007-04-26 Tubos De Acero Mexico S.A. Seamless steel tube which is intended to be used as a guide pipe and production method thereof
JP2007016302A (ja) * 2005-06-08 2007-01-25 Jfe Steel Kk 耐ssc特性に優れた高張力鋼板の製造方法
JP2008101242A (ja) * 2006-10-19 2008-05-01 Jfe Steel Kk 耐hic特性に優れたラインパイプ用高強度鋼板およびその製造方法
JP2013023714A (ja) * 2011-07-19 2013-02-04 Jfe Steel Corp Sr後の溶接部靱性に優れた低降伏比耐hic溶接鋼管およびその製造方法
CN102719745A (zh) * 2012-06-25 2012-10-10 宝山钢铁股份有限公司 优良抗hic、ssc的高强低温用钢及其制造方法
JP2015190026A (ja) * 2014-03-28 2015-11-02 Jfeスチール株式会社 ラインパイプ用厚肉高強度電縫鋼管およびその製造方法

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6460297B1 (ja) * 2018-06-29 2019-01-30 新日鐵住金株式会社 鋼管及び鋼板
WO2020003499A1 (ja) * 2018-06-29 2020-01-02 日本製鉄株式会社 鋼管及び鋼板
KR20210021068A (ko) * 2018-06-29 2021-02-24 닛폰세이테츠 가부시키가이샤 강관 및 강판
EP3816311A4 (en) * 2018-06-29 2021-12-01 Nippon Steel Corporation STEEL PIPE AND STEEL SHEET
KR102457409B1 (ko) 2018-06-29 2022-10-24 닛폰세이테츠 가부시키가이샤 강관 및 강판
JP2020063500A (ja) * 2018-10-19 2020-04-23 日本製鉄株式会社 Uoe鋼管用鋼板およびその製造方法
JP7119888B2 (ja) 2018-10-19 2022-08-17 日本製鉄株式会社 Uoe鋼管用鋼板およびその製造方法
WO2021176590A1 (ja) * 2020-03-04 2021-09-10 日本製鉄株式会社 鋼管および鋼板
JPWO2021176590A1 (zh) * 2020-03-04 2021-09-10
CN115210396A (zh) * 2020-03-04 2022-10-18 日本制铁株式会社 钢管和钢板
JP7360075B2 (ja) 2020-03-04 2023-10-12 日本製鉄株式会社 鋼管および鋼板

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JPWO2019058420A1 (ja) 2019-11-07
EP3686305A1 (en) 2020-07-29
WO2019058420A1 (ja) 2019-03-28
CN111094608A (zh) 2020-05-01
KR20200039738A (ko) 2020-04-16
EP3686305A4 (en) 2021-01-27
KR102364255B1 (ko) 2022-02-17
CN111094608B (zh) 2021-10-26

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