EP3395988A4 - Tôle d'acier structural haute résistance présentant une excellente résistance à chaud et son procédé de fabrication - Google Patents

Tôle d'acier structural haute résistance présentant une excellente résistance à chaud et son procédé de fabrication Download PDF

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Publication number
EP3395988A4
EP3395988A4 EP16879310.7A EP16879310A EP3395988A4 EP 3395988 A4 EP3395988 A4 EP 3395988A4 EP 16879310 A EP16879310 A EP 16879310A EP 3395988 A4 EP3395988 A4 EP 3395988A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing
steel sheet
same
high strength
structural steel
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
EP16879310.7A
Other languages
German (de)
English (en)
Other versions
EP3395988A1 (fr
EP3395988B1 (fr
EP3395988C0 (fr
Inventor
Woo-Gyeom KIM
Han-Kyu Kim
Sang-Ho Kim
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 EP3395988A1 publication Critical patent/EP3395988A1/fr
Publication of EP3395988A4 publication Critical patent/EP3395988A4/fr
Application granted granted Critical
Publication of EP3395988B1 publication Critical patent/EP3395988B1/fr
Publication of EP3395988C0 publication Critical patent/EP3395988C0/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
    • 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
    • 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
    • C22C38/001—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
    • C22C38/02—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
    • C21D2211/004—Dispersions; Precipitations
    • 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
    • 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
    • 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

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)
  • Heat Treatment Of Sheet Steel (AREA)
EP16879310.7A 2015-12-23 2016-12-21 Tôle d'acier structural haute résistance présentant une excellente résistance à chaud et son procédé de fabrication Active EP3395988B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020150184775A KR101758520B1 (ko) 2015-12-23 2015-12-23 열간 저항성이 우수한 고강도 구조용 강판 및 그 제조방법
PCT/KR2016/014964 WO2017111443A1 (fr) 2015-12-23 2016-12-21 Tôle d'acier structural haute résistance présentant une excellente résistance à chaud et son procédé de fabrication

Publications (4)

Publication Number Publication Date
EP3395988A1 EP3395988A1 (fr) 2018-10-31
EP3395988A4 true EP3395988A4 (fr) 2019-02-27
EP3395988B1 EP3395988B1 (fr) 2024-02-07
EP3395988C0 EP3395988C0 (fr) 2024-02-07

Family

ID=59090640

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16879310.7A Active EP3395988B1 (fr) 2015-12-23 2016-12-21 Tôle d'acier structural haute résistance présentant une excellente résistance à chaud et son procédé de fabrication

Country Status (5)

Country Link
EP (1) EP3395988B1 (fr)
JP (1) JP6718510B2 (fr)
KR (1) KR101758520B1 (fr)
CN (1) CN108431276B (fr)
WO (1) WO2017111443A1 (fr)

Families Citing this family (3)

* 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
KR101949036B1 (ko) * 2017-10-11 2019-05-08 주식회사 포스코 저온 변형시효 충격특성이 우수한 후강판 및 그 제조방법
KR101999018B1 (ko) * 2017-12-24 2019-07-10 주식회사 포스코 저온인성이 우수한 후강판 및 그 제조방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030053767A (ko) * 2001-12-24 2003-07-02 주식회사 포스코 항복강도 및 저온 파괴정지 특성이 우수한 후판강관구조용 강재의 제조방법
JP2007056348A (ja) * 2005-08-26 2007-03-08 Nippon Steel Corp 線状加熱による曲げ加工が容易な鋼板及びその製造方法
WO2009082156A1 (fr) * 2007-12-24 2009-07-02 Posco Acier pour une structure de soudage comprenant un joint soudé ayant d'excellentes propriétés doef dans une zone affectée par la chaleur de soudage
JP2010121149A (ja) * 2008-11-17 2010-06-03 Nippon Steel Corp 線状加熱による曲げ加工性に優れた厚鋼板及びその製造方法
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

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63183123A (ja) * 1987-01-26 1988-07-28 Kobe Steel Ltd 線状及び点状再加熱加工後の低温靭性にすぐれる高張力鋼の製造方法
JPH11152540A (ja) * 1997-11-18 1999-06-08 Sumitomo Metal Ind Ltd 線状加熱に伴う靱性劣化が少ない鋼材
JP2002235114A (ja) * 2001-02-05 2002-08-23 Kawasaki Steel Corp 大入熱溶接部靱性に優れた厚肉高張力鋼の製造方法
JP4066850B2 (ja) * 2003-03-03 2008-03-26 Ｊｆｅスチール株式会社 溶接部のｃｔｏｄ特性に優れる高張力鋼の製造方法
JP4846242B2 (ja) * 2005-01-25 2011-12-28 新日本製鐵株式会社 加熱曲げ特性に優れた厚鋼板の曲げ加工方法
KR100660230B1 (ko) 2005-12-26 2006-12-21 주식회사 포스코 두께 중심부의 강도와 인성이 우수한 용접구조용 극후물강판 및 그 제조방법
WO2009072753A1 (fr) * 2007-12-04 2009-06-11 Posco Tôle d'acier à haute résistance avec une excellente ténacité à basse température et procédé de fabrication de celle-ci
JP4308312B1 (ja) * 2008-01-08 2009-08-05 新日本製鐵株式会社 線状加熱による曲げ加工性に優れた厚鋼板及びその製造方法
KR20110022308A (ko) * 2009-08-27 2011-03-07 현대제철 주식회사 고강도 강재 및 그 제조방법
KR101360737B1 (ko) * 2009-12-28 2014-02-07 주식회사 포스코 취성 균열 발생 저항성이 우수한 고강도 강판 및 그 제조방법
WO2011148754A1 (fr) * 2010-05-27 2011-12-01 新日本製鐵株式会社 Procédé de fabrication d'une tôle d'acier épaisse
JP5833964B2 (ja) * 2012-03-29 2015-12-16 株式会社神戸製鋼所 曲げ加工性、衝撃特性および引張特性に優れた鋼板およびその製造方法
KR101482359B1 (ko) * 2012-12-27 2015-01-13 주식회사 포스코 극저온 인성이 우수하고 저항복비 특성을 갖는 고강도 강판 및 그의 제조방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030053767A (ko) * 2001-12-24 2003-07-02 주식회사 포스코 항복강도 및 저온 파괴정지 특성이 우수한 후판강관구조용 강재의 제조방법
JP2007056348A (ja) * 2005-08-26 2007-03-08 Nippon Steel Corp 線状加熱による曲げ加工が容易な鋼板及びその製造方法
WO2009082156A1 (fr) * 2007-12-24 2009-07-02 Posco Acier pour une structure de soudage comprenant un joint soudé ayant d'excellentes propriétés doef dans une zone affectée par la chaleur de soudage
JP2010121149A (ja) * 2008-11-17 2010-06-03 Nippon Steel Corp 線状加熱による曲げ加工性に優れた厚鋼板及びその製造方法
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2017111443A1 *

Also Published As

Publication number Publication date
KR20170075851A (ko) 2017-07-04
EP3395988A1 (fr) 2018-10-31
WO2017111443A1 (fr) 2017-06-29
EP3395988B1 (fr) 2024-02-07
CN108431276B (zh) 2020-04-14
WO2017111443A8 (fr) 2017-10-26
EP3395988C0 (fr) 2024-02-07
JP6718510B2 (ja) 2020-07-08
CN108431276A (zh) 2018-08-21
KR101758520B1 (ko) 2017-07-17
JP2019505676A (ja) 2019-02-28

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