EP3239329A4 - Ultradicker baustahl mit ausgezeichneter beständigkeit gegen sprödrissausbreitung und herstellungsverfahren dafür - Google Patents

Ultradicker baustahl mit ausgezeichneter beständigkeit gegen sprödrissausbreitung und herstellungsverfahren dafür Download PDF

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Publication number
EP3239329A4
EP3239329A4 EP15873530.8A EP15873530A EP3239329A4 EP 3239329 A4 EP3239329 A4 EP 3239329A4 EP 15873530 A EP15873530 A EP 15873530A EP 3239329 A4 EP3239329 A4 EP 3239329A4
Authority
EP
European Patent Office
Prior art keywords
production method
method therefor
thick steel
crack propagation
excellent resistance
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
EP15873530.8A
Other languages
English (en)
French (fr)
Other versions
EP3239329B8 (de
EP3239329A1 (de
EP3239329B1 (de
Inventor
Hak-Cheol Lee
Sung-Ho Jang
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 EP3239329A4 publication Critical patent/EP3239329A4/de
Publication of EP3239329A1 publication Critical patent/EP3239329A1/de
Application granted granted Critical
Publication of EP3239329B1 publication Critical patent/EP3239329B1/de
Publication of EP3239329B8 publication Critical patent/EP3239329B8/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • 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
    • 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
    • C21D2211/005—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
EP15873530.8A 2014-12-24 2015-12-11 Ultradicker baustahl mit ausgezeichneter beständigkeit gegen sprödrissausbreitung und herstellungsverfahren dafür Active EP3239329B8 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020140188465A KR101657827B1 (ko) 2014-12-24 2014-12-24 취성균열전파 저항성이 우수한 구조용 극후물 강재 및 그 제조방법
PCT/KR2015/013557 WO2016105003A1 (ko) 2014-12-24 2015-12-11 취성균열전파 저항성이 우수한 구조용 극후물 강재 및 그 제조방법

Publications (4)

Publication Number Publication Date
EP3239329A4 true EP3239329A4 (de) 2017-11-01
EP3239329A1 EP3239329A1 (de) 2017-11-01
EP3239329B1 EP3239329B1 (de) 2019-10-09
EP3239329B8 EP3239329B8 (de) 2019-11-20

Family

ID=56150967

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15873530.8A Active EP3239329B8 (de) 2014-12-24 2015-12-11 Ultradicker baustahl mit ausgezeichneter beständigkeit gegen sprödrissausbreitung und herstellungsverfahren dafür

Country Status (6)

Country Link
US (1) US20170342518A1 (de)
EP (1) EP3239329B8 (de)
JP (1) JP6475839B2 (de)
KR (1) KR101657827B1 (de)
CN (1) CN107109591A (de)
WO (1) WO2016105003A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101940880B1 (ko) * 2016-12-22 2019-01-21 주식회사 포스코 저온인성 및 후열처리 특성이 우수한 내sour 후판 강재 및 그 제조방법
KR102209547B1 (ko) * 2018-12-19 2021-01-28 주식회사 포스코 취성균열개시 저항성이 우수한 구조용 극후물 강재 및 그 제조방법
CN115354219B (zh) * 2022-07-06 2023-09-15 江阴兴澄特种钢铁有限公司 一种200～400℃高温强度优异的SA516Gr70钢板及其制造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999032671A1 (en) * 1997-12-19 1999-07-01 Exxonmobil Upstream Research Company Ultra-high strength dual phase steels with excellent cryogenic temperature toughness
WO2000040764A2 (en) * 1998-12-19 2000-07-13 Exxonmobil Upstream Research Company Ultra-high strength ausaged steels with excellent cryogenic temperature toughness
EP1025272B1 (de) * 1997-07-28 2006-06-14 Exxon Mobil Upstream Research Company Ultrahochfeste, schweissbare stähle mit ausgezeichneter ultra-tief-temperatur zähigkeit
JP2010001520A (ja) * 2008-06-19 2010-01-07 Kobe Steel Ltd 脆性亀裂伝播停止特性に優れた厚鋼板およびその製造方法
WO2014132627A1 (ja) * 2013-02-28 2014-09-04 Ｊｆｅスチール株式会社 厚鋼板及び厚鋼板の製造方法

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JPH064903B2 (ja) * 1985-04-09 1994-01-19 新日本製鐵株式会社 脆性き裂伝播停止特性の優れた厚鋼板およびその製造法
JPH04180521A (ja) * 1990-11-14 1992-06-26 Kobe Steel Ltd 高降伏強度高靭性厚肉高張力鋼板の製造方法
JP3474661B2 (ja) * 1995-01-24 2003-12-08 新日本製鐵株式会社 亀裂伝播停止特性に優れた耐サワー鋼板
JP3417878B2 (ja) * 1999-07-02 2003-06-16 株式会社神戸製鋼所 伸びフランジ性および疲労特性に優れた高強度熱延鋼板およびその製法
KR100380750B1 (ko) 2000-10-24 2003-05-09 주식회사 포스코 용접열영향부 인성이 우수한 고강도 용접구조용 강재의제조방법
US20060169368A1 (en) * 2004-10-05 2006-08-03 Tenaris Conncections A.G. (A Liechtenstein Corporation) Low carbon alloy steel tube having ultra high strength and excellent toughness at low temperature and method of manufacturing the same
JP4058097B2 (ja) * 2006-04-13 2008-03-05 新日本製鐵株式会社 アレスト性に優れた高強度厚鋼板
JP5064150B2 (ja) * 2006-12-14 2012-10-31 新日本製鐵株式会社 脆性き裂伝播停止性能に優れた高強度厚鋼板
KR100851176B1 (ko) * 2006-12-27 2008-08-08 주식회사 포스코 저온인성 및 항복강도 이방성이 적은 라인파이프용열연강판과 그 제조방법
JP4309946B2 (ja) * 2007-03-05 2009-08-05 新日本製鐵株式会社 脆性き裂伝播停止特性に優れた厚手高強度鋼板およびその製造方法
KR100957961B1 (ko) 2007-12-26 2010-05-17 주식회사 포스코 용접부 인성이 우수한 고강도 라인파이프 강재 및 그제조방법
KR101360737B1 (ko) * 2009-12-28 2014-02-07 주식회사 포스코 취성 균열 발생 저항성이 우수한 고강도 강판 및 그 제조방법
JP5425702B2 (ja) * 2010-02-05 2014-02-26 株式会社神戸製鋼所 落重特性に優れた高強度厚鋼板
JP5598485B2 (ja) * 2011-02-08 2014-10-01 Ｊｆｅスチール株式会社 長大脆性き裂伝播停止特性に優れる板厚５０ｍｍ以上の厚鋼板およびその製造方法
KR101681491B1 (ko) * 2011-12-27 2016-12-01 제이에프이 스틸 가부시키가이샤 취성 균열 전파 정지 특성이 우수한 고강도 후강판
JP5304925B2 (ja) * 2011-12-27 2013-10-02 Ｊｆｅスチール株式会社 脆性亀裂伝播停止特性に優れた構造用高強度厚鋼板およびその製造方法
TWI463018B (zh) * 2012-04-06 2014-12-01 Nippon Steel & Sumitomo Metal Corp 具優異裂縫阻滯性之高強度厚鋼板
JP2013221190A (ja) * 2012-04-17 2013-10-28 Nippon Steel & Sumitomo Metal Corp 脆性亀裂伝播停止性能に優れた高強度厚鋼板
JP2013221189A (ja) * 2012-04-17 2013-10-28 Nippon Steel & Sumitomo Metal Corp 脆性亀裂伝播停止性能に優れた高強度厚鋼板
JP5811032B2 (ja) * 2012-05-23 2015-11-11 新日鐵住金株式会社 Ｌｐｇタンク用鋼板
JP6086086B2 (ja) * 2014-03-19 2017-03-01 Ｊｆｅスチール株式会社 耐ｈｉｃ性能に優れた極厚鋼板およびその製造方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1025272B1 (de) * 1997-07-28 2006-06-14 Exxon Mobil Upstream Research Company Ultrahochfeste, schweissbare stähle mit ausgezeichneter ultra-tief-temperatur zähigkeit
WO1999032671A1 (en) * 1997-12-19 1999-07-01 Exxonmobil Upstream Research Company Ultra-high strength dual phase steels with excellent cryogenic temperature toughness
WO2000040764A2 (en) * 1998-12-19 2000-07-13 Exxonmobil Upstream Research Company Ultra-high strength ausaged steels with excellent cryogenic temperature toughness
JP2010001520A (ja) * 2008-06-19 2010-01-07 Kobe Steel Ltd 脆性亀裂伝播停止特性に優れた厚鋼板およびその製造方法
WO2014132627A1 (ja) * 2013-02-28 2014-09-04 Ｊｆｅスチール株式会社 厚鋼板及び厚鋼板の製造方法
EP2963138A1 (de) * 2013-02-28 2016-01-06 JFE Steel Corporation Dicke stahlplatte und herstellungsverfahren für dicke stahlplatte

Also Published As

Publication number Publication date
KR101657827B1 (ko) 2016-09-20
EP3239329B8 (de) 2019-11-20
JP6475839B2 (ja) 2019-02-27
WO2016105003A1 (ko) 2016-06-30
US20170342518A1 (en) 2017-11-30
JP2018504524A (ja) 2018-02-15
CN107109591A (zh) 2017-08-29
EP3239329A1 (de) 2017-11-01
KR20160078668A (ko) 2016-07-05
EP3239329B1 (de) 2019-10-09

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