EP3385402A4 - Acier haute résistance présentant une excellente aptitude à arrêter les fissures de fragilité et une excellente résistance à l'initiation de fissures de fragilité d'une partie soudée et procédé pour sa production - Google Patents

Acier haute résistance présentant une excellente aptitude à arrêter les fissures de fragilité et une excellente résistance à l'initiation de fissures de fragilité d'une partie soudée et procédé pour sa production Download PDF

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Publication number
EP3385402A4
EP3385402A4 EP16871086.1A EP16871086A EP3385402A4 EP 3385402 A4 EP3385402 A4 EP 3385402A4 EP 16871086 A EP16871086 A EP 16871086A EP 3385402 A4 EP3385402 A4 EP 3385402A4
Authority
EP
European Patent Office
Prior art keywords
brittle crack
production method
strength steel
method therefor
welding part
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
EP16871086.1A
Other languages
German (de)
English (en)
Other versions
EP3385402A1 (fr
EP3385402B1 (fr
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 EP3385402A1 publication Critical patent/EP3385402A1/fr
Publication of EP3385402A4 publication Critical patent/EP3385402A4/fr
Application granted granted Critical
Publication of EP3385402B1 publication Critical patent/EP3385402B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys 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 of ferrous metals or ferrous alloys 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
    • 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
    • C22C38/02—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
    • 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

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)
EP16871086.1A 2015-12-04 2016-12-02 Acier haute résistance présentant une excellente aptitude à arrêter les fissures de fragilité et une excellente résistance à l'initiation de fissures de fragilité d'une partie soudée et procédé pour sa production Active EP3385402B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020150172687A KR101736611B1 (ko) 2015-12-04 2015-12-04 취성균열전파 저항성 및 용접부 취성균열개시 저항성이 우수한 고강도 강재 및 그 제조방법
PCT/KR2016/014124 WO2017095190A1 (fr) 2015-12-04 2016-12-02 Acier haute résistance présentant une excellente aptitude à arrêter les fissures de fragilité et une excellente résistance à l'initiation de fissures de fragilité d'une partie soudée et procédé pour sa production

Publications (3)

Publication Number Publication Date
EP3385402A1 EP3385402A1 (fr) 2018-10-10
EP3385402A4 true EP3385402A4 (fr) 2018-10-10
EP3385402B1 EP3385402B1 (fr) 2020-04-08

Family

ID=58797314

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16871086.1A Active EP3385402B1 (fr) 2015-12-04 2016-12-02 Acier haute résistance présentant une excellente aptitude à arrêter les fissures de fragilité et une excellente résistance à l'initiation de fissures de fragilité d'une partie soudée et procédé pour sa production

Country Status (6)

Country Link
US (1) US20180363107A1 (fr)
EP (1) EP3385402B1 (fr)
JP (1) JP6648271B2 (fr)
KR (1) KR101736611B1 (fr)
CN (1) CN108291287B (fr)
WO (1) WO2017095190A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6673320B2 (ja) * 2017-02-16 2020-03-25 Ｊｆｅスチール株式会社 厚鋼板および厚鋼板の製造方法
KR102045641B1 (ko) * 2017-12-22 2019-11-15 주식회사 포스코 저온에서의 내파괴 특성이 우수한 극지 환경용 고강도 강재 및 그 제조방법
EP3666911B1 (fr) 2018-12-11 2021-08-18 SSAB Technology AB Produit d'acier à haute résistance et son procédé de fabrication
KR102209547B1 (ko) * 2018-12-19 2021-01-28 주식회사 포스코 취성균열개시 저항성이 우수한 구조용 극후물 강재 및 그 제조방법
CN109628854B (zh) * 2019-01-17 2021-01-29 河北敬业中厚板有限公司 一种超快冷工艺生产钢板的方法
KR102355675B1 (ko) * 2019-07-12 2022-01-27 주식회사 포스코 고강도 스프링용 선재, 강선 및 그 제조방법
KR102485116B1 (ko) * 2020-08-26 2023-01-04 주식회사 포스코 표면부 nrl-dwt 물성이 우수한 구조용 극후물 강재 및 그 제조 방법
CN112251592B (zh) * 2020-10-23 2022-03-22 攀钢集团攀枝花钢铁研究院有限公司 用于异种钢轨闪光焊后接头热处理的施工方法
CN117004885B (zh) * 2023-07-24 2024-10-22 鞍钢股份有限公司 一种超低温高强度容器钢板及其制造方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2660346A2 (fr) * 2010-12-28 2013-11-06 Posco Tôle d'acier à haute résistance ayant ténacité supérieure à des températures cryogéniques et son procédé de fabrication
KR20150112489A (ko) * 2014-03-28 2015-10-07 현대제철 주식회사 강재 및 그 제조 방법

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JPS62205230A (ja) * 1986-03-04 1987-09-09 Kobe Steel Ltd 脆性亀裂伝播停止特性の優れた低温用鋼板の製造方法
JPH0674454B2 (ja) * 1986-08-19 1994-09-21 新日本製鐵株式会社 低温靭性と溶接性に優れた厚手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
KR100482208B1 (ko) * 2000-11-17 2005-04-21 주식회사 포스코 침질처리에 의한 용접구조용 강재의 제조방법
JP4445161B2 (ja) * 2001-06-19 2010-04-07 新日本製鐵株式会社 疲労強度に優れた厚鋼板の製造方法
KR20090006987A (ko) * 2007-07-13 2009-01-16 삼성전자주식회사 잉크젯 화상형성장치
KR100957964B1 (ko) * 2007-12-26 2010-05-17 주식회사 포스코 용접열영향부의 저온인성과 인장강도가 우수한 고강도저항복비 구조용 강재 및 그 제조방법
JP5348386B2 (ja) * 2008-10-24 2013-11-20 Ｊｆｅスチール株式会社 低降伏比かつ耐脆性亀裂発生特性に優れた厚肉高張力鋼板およびその製造方法
KR20100067509A (ko) * 2008-12-11 2010-06-21 주식회사 포스코 용접열영향부 ｃｔｏｄ 특성이 우수한 해양구조용 강판의 제조방법
KR101360737B1 (ko) * 2009-12-28 2014-02-07 주식회사 포스코 취성 균열 발생 저항성이 우수한 고강도 강판 및 그 제조방법
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JP5522084B2 (ja) * 2011-02-24 2014-06-18 新日鐵住金株式会社 厚鋼板の製造方法
JP5612532B2 (ja) * 2011-04-26 2014-10-22 株式会社神戸製鋼所 低温靭性および溶接継手破壊靭性に優れた鋼板およびその製造方法
CN102851591B (zh) * 2011-06-28 2016-01-13 鞍钢股份有限公司 一种高强高韧性船用低温钢及其制造方法
WO2013099179A1 (fr) * 2011-12-27 2013-07-04 Ｊｆｅスチール株式会社 Plaque d'acier à haute résistance ayant une excellente capacité à arrêter les fissures fragiles et son procédé de fabrication
CN103882320B (zh) * 2012-12-21 2016-09-07 鞍钢股份有限公司 延伸凸缘性和点焊性优良的高强度冷轧钢板及其制造方法
KR101585724B1 (ko) * 2013-12-24 2016-01-14 주식회사 포스코 중심부 저온 파괴전파 저항성 및 항복비 특성이 동시에 우수한 후물 라인파이프 강재 및 그 제조방법
CN104789898A (zh) * 2015-05-07 2015-07-22 湖南华菱湘潭钢铁有限公司 一种超高强度止裂厚钢板的生产方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2660346A2 (fr) * 2010-12-28 2013-11-06 Posco Tôle d'acier à haute résistance ayant ténacité supérieure à des températures cryogéniques et son procédé de fabrication
KR20150112489A (ko) * 2014-03-28 2015-10-07 현대제철 주식회사 강재 및 그 제조 방법

Also Published As

Publication number Publication date
KR101736611B1 (ko) 2017-05-17
EP3385402A1 (fr) 2018-10-10
CN108291287A (zh) 2018-07-17
US20180363107A1 (en) 2018-12-20
CN108291287B (zh) 2020-03-03
EP3385402B1 (fr) 2020-04-08
WO2017095190A1 (fr) 2017-06-08
JP2019501281A (ja) 2019-01-17
JP6648271B2 (ja) 2020-02-14

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