EP4071261A4 - Normalisierendes wärmebehandeltes stahlblech, das eine gute kerbschlagzähigkeit aufweist, und herstellungsverfahren dafür - Google Patents

Normalisierendes wärmebehandeltes stahlblech, das eine gute kerbschlagzähigkeit aufweist, und herstellungsverfahren dafür Download PDF

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Publication number
EP4071261A4
EP4071261A4 EP20896407.2A EP20896407A EP4071261A4 EP 4071261 A4 EP4071261 A4 EP 4071261A4 EP 20896407 A EP20896407 A EP 20896407A EP 4071261 A4 EP4071261 A4 EP 4071261A4
Authority
EP
European Patent Office
Prior art keywords
steel sheet
heat treated
treated steel
manufacturing same
impact toughness
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
EP20896407.2A
Other languages
English (en)
French (fr)
Other versions
EP4071261A1 (de
Inventor
Woo-Gyeom KIM
Dae-Woo BAEK
Ki-Ho Yun
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.)
Posco Holdings Inc
Original Assignee
Posco Co Ltd
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 Posco Co Ltd filed Critical Posco Co Ltd
Publication of EP4071261A1 publication Critical patent/EP4071261A1/de
Publication of EP4071261A4 publication Critical patent/EP4071261A4/de
Pending legal-status Critical Current

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    • 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
    • C21D1/26—Methods of annealing
    • C21D1/28—Normalising
    • 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
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • 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
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/60—Aqueous agents
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/001—Heat treatment of ferrous alloys containing Ni
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
    • 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
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • 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
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • 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
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying 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
    • 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
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0273—Final recrystallisation annealing
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/02—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
    • C22C38/04—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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • 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
    • C21D2211/005—Ferrite
    • 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
    • C21D2211/009—Pearlite

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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)
  • Heat Treatment Of Steel (AREA)
EP20896407.2A 2019-12-06 2020-11-27 Normalisierendes wärmebehandeltes stahlblech, das eine gute kerbschlagzähigkeit aufweist, und herstellungsverfahren dafür Pending EP4071261A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020190162011A KR102255822B1 (ko) 2019-12-06 2019-12-06 저온충격인성이 우수한 노말라이징 열처리 강판 및 제조방법
PCT/KR2020/017125 WO2021112503A1 (ko) 2019-12-06 2020-11-27 저온충격인성이 우수한 노말라이징 열처리 강판 및 제조방법

Publications (2)

Publication Number Publication Date
EP4071261A1 EP4071261A1 (de) 2022-10-12
EP4071261A4 true EP4071261A4 (de) 2024-06-19

Family

ID=76145196

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20896407.2A Pending EP4071261A4 (de) 2019-12-06 2020-11-27 Normalisierendes wärmebehandeltes stahlblech, das eine gute kerbschlagzähigkeit aufweist, und herstellungsverfahren dafür

Country Status (5)

Country Link
US (1) US20220403479A1 (de)
EP (1) EP4071261A4 (de)
KR (1) KR102255822B1 (de)
CN (1) CN114746568A (de)
WO (1) WO2021112503A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114807766A (zh) * 2022-05-05 2022-07-29 重庆钢铁股份有限公司 一种低温压力容器用微合金钢板及其生产方法
KR20240098514A (ko) * 2022-12-21 2024-06-28 주식회사 포스코 강도와 인성이 우수한 강판 및 그 제조방법

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090069872A (ko) * 2007-12-26 2009-07-01 주식회사 포스코 용접열영향부의 저온인성과 인장강도가 우수한 고강도구조용 강재 및 그 제조방법
KR20110060449A (ko) * 2009-11-30 2011-06-08 주식회사 포스코 저온인성 및 수소유기균열 저항성이 우수한 압력용기용 강판 및 그 제조방법
CN102304670A (zh) * 2011-09-22 2012-01-04 首钢总公司 一种具有-40℃应变时效高韧性钢板及其生产方法
KR20120074638A (ko) * 2010-12-28 2012-07-06 주식회사 포스코 중심부 물성 및 수소유기균열 저항성이 우수한 압력용기용 극후물 강판 및 그 제조방법
WO2014041996A1 (ja) * 2012-09-11 2014-03-20 株式会社神戸製鋼所 低温靭性に優れた高張力鋼板およびその製造方法
CN106086650A (zh) * 2016-07-25 2016-11-09 江阴兴澄特种钢铁有限公司 一种可大线能量焊接的极地船用钢板及其制备方法
US20190093204A1 (en) * 2014-12-24 2019-03-28 Posco High-strength steel having superior brittle crack arrestability, and production method therefor
WO2019074236A1 (ko) * 2017-10-11 2019-04-18 주식회사 포스코 저온 변형시효 충격특성이 우수한 후강판 및 그 제조방법

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JPH07278656A (ja) * 1994-04-04 1995-10-24 Nippon Steel Corp 低降伏比高張力鋼の製造方法
JP5369462B2 (ja) * 2008-03-21 2013-12-18 Ｊｆｅスチール株式会社 低降伏比高張力鋼板およびその製造方法
EP2589673B1 (de) * 2010-06-30 2017-08-02 Nippon Steel & Sumitomo Metal Corporation Heissgewalztes stahlblech
CN102605283B (zh) * 2012-04-18 2013-12-25 江苏省沙钢钢铁研究院有限公司 低成本高韧性低温压力容器钢及其制造方法
KR20160063168A (ko) 2014-11-26 2016-06-03 현대제철 주식회사 강재 및 그 제조 방법
KR20160075925A (ko) * 2014-12-19 2016-06-30 주식회사 포스코 수소유기균열(ｈｉｃ) 저항성 및 저온인성이 우수한 압력용기용 강재 및 이의 제조방법
KR101917453B1 (ko) * 2016-12-22 2018-11-09 주식회사 포스코 극저온 충격인성이 우수한 후강판 및 이의 제조방법

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090069872A (ko) * 2007-12-26 2009-07-01 주식회사 포스코 용접열영향부의 저온인성과 인장강도가 우수한 고강도구조용 강재 및 그 제조방법
KR20110060449A (ko) * 2009-11-30 2011-06-08 주식회사 포스코 저온인성 및 수소유기균열 저항성이 우수한 압력용기용 강판 및 그 제조방법
KR20120074638A (ko) * 2010-12-28 2012-07-06 주식회사 포스코 중심부 물성 및 수소유기균열 저항성이 우수한 압력용기용 극후물 강판 및 그 제조방법
CN102304670A (zh) * 2011-09-22 2012-01-04 首钢总公司 一种具有-40℃应变时效高韧性钢板及其生产方法
WO2014041996A1 (ja) * 2012-09-11 2014-03-20 株式会社神戸製鋼所 低温靭性に優れた高張力鋼板およびその製造方法
US20190093204A1 (en) * 2014-12-24 2019-03-28 Posco High-strength steel having superior brittle crack arrestability, and production method therefor
CN106086650A (zh) * 2016-07-25 2016-11-09 江阴兴澄特种钢铁有限公司 一种可大线能量焊接的极地船用钢板及其制备方法
WO2019074236A1 (ko) * 2017-10-11 2019-04-18 주식회사 포스코 저온 변형시효 충격특성이 우수한 후강판 및 그 제조방법

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021112503A1 *

Also Published As

Publication number Publication date
US20220403479A1 (en) 2022-12-22
WO2021112503A1 (ko) 2021-06-10
CN114746568A (zh) 2022-07-12
KR102255822B1 (ko) 2021-05-25
EP4071261A1 (de) 2022-10-12

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