EP3395997A4 - Acier à haute résistance de type à faible rapport d'élasticité et son procédé de fabrication - Google Patents

Acier à haute résistance de type à faible rapport d'élasticité et son procédé de fabrication Download PDF

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Publication number
EP3395997A4
EP3395997A4 EP16879212.5A EP16879212A EP3395997A4 EP 3395997 A4 EP3395997 A4 EP 3395997A4 EP 16879212 A EP16879212 A EP 16879212A EP 3395997 A4 EP3395997 A4 EP 3395997A4
Authority
EP
European Patent Office
Prior art keywords
yield
manufacturing
low
type high
strength 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
EP16879212.5A
Other languages
German (de)
English (en)
Other versions
EP3395997B1 (fr
EP3395997A1 (fr
Inventor
Seng-Ho YU
Mun-Young JUNG
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 EP3395997A1 publication Critical patent/EP3395997A1/fr
Publication of EP3395997A4 publication Critical patent/EP3395997A4/fr
Application granted granted Critical
Publication of EP3395997B1 publication Critical patent/EP3395997B1/fr
Active legal-status Critical Current
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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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • 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
    • C21D8/0221—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
    • C22C38/001—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
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • 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
    • C21D2211/008—Martensite

Landscapes

  • 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)
EP16879212.5A 2015-12-24 2016-12-02 Acier à haute résistance de type à faible rapport d'élasticité et son procédé de fabrication Active EP3395997B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020150186522A KR102348539B1 (ko) 2015-12-24 2015-12-24 저항복비형 고강도 강재 및 그 제조방법
PCT/KR2016/014135 WO2017111345A1 (fr) 2015-12-24 2016-12-02 Acier à haute résistance de type à faible rapport d'élasticité et son procédé de fabrication

Publications (3)

Publication Number Publication Date
EP3395997A1 EP3395997A1 (fr) 2018-10-31
EP3395997A4 true EP3395997A4 (fr) 2018-11-07
EP3395997B1 EP3395997B1 (fr) 2020-09-02

Family

ID=59090793

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16879212.5A Active EP3395997B1 (fr) 2015-12-24 2016-12-02 Acier à haute résistance de type à faible rapport d'élasticité et son procédé de fabrication

Country Status (6)

Country Link
US (1) US20180371590A1 (fr)
EP (1) EP3395997B1 (fr)
JP (1) JP6845855B2 (fr)
KR (1) KR102348539B1 (fr)
CN (1) CN108474090B (fr)
WO (1) WO2017111345A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101879082B1 (ko) * 2016-12-21 2018-07-16 주식회사 포스코 저항복비형 초고강도 강재 및 그 제조방법
KR102109277B1 (ko) * 2018-10-26 2020-05-11 주식회사 포스코 용접열영향부 인성이 우수한 저항복비 강재 및 그 제조방법
KR102255818B1 (ko) * 2019-06-24 2021-05-25 주식회사 포스코 내부식성이 우수한 고강도 구조용 강재 및 그 제조방법
KR102307903B1 (ko) * 2019-11-04 2021-09-30 주식회사 포스코 저온 충격인성이 우수한 고강도 강재 및 그 제조방법

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5597425A (en) * 1979-01-19 1980-07-24 Nippon Kokan Kk <Nkk> Preparation of high-tensile steel with low yield ratio, low carbon and low alloy
JPH0551694A (ja) * 1991-08-20 1993-03-02 Nkk Corp 低降伏比高張力鋼およびその製造方法
WO2008054166A1 (fr) * 2006-11-02 2008-05-08 Posco Plaque d'acier pour tube de canalisation ayant une résistance extrêmement élevée et une excellente résilience à basse température, et procédé pour la réaliser
KR20090052950A (ko) * 2007-11-22 2009-05-27 주식회사 포스코 저온인성이 우수한 고강도 저항복비 건설용 강재 및 그제조방법
EP2700728A1 (fr) * 2011-04-21 2014-02-26 Nippon Steel & Sumitomo Metal Corporation Tôle d'acier à haute résistance laminée à froid avec des caractéristiques d'étirage très uniformes et une excellente expansibilité des trous, et son procédé de production
WO2014171062A1 (fr) * 2013-04-15 2014-10-23 Ｊｆｅスチール株式会社 Tôle d'acier laminée à chaud de haute résistance, et son procédé de fabrication
KR20150002958A (ko) * 2013-06-27 2015-01-08 현대제철 주식회사 강재 및 그 제조 방법
KR20150074968A (ko) * 2013-12-24 2015-07-02 주식회사 포스코 저온 인성이 우수한 강관용 열연강판 및 그 제조방법

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5223375B2 (ja) * 2007-03-01 2013-06-26 新日鐵住金株式会社 低温靭性に優れるラインパイプ用高強度熱延鋼板およびその製造方法
JP4972451B2 (ja) * 2007-04-20 2012-07-11 株式会社神戸製鋼所 溶接熱影響部および母材の低温靭性に優れた低降伏比高張力鋼板並びにその製造方法
KR101096992B1 (ko) * 2008-03-27 2011-12-20 가부시키가이샤 고베 세이코쇼 내진성이 우수한 건축 구조용 780㎫급 저항복비 원형 강관 및 그 제조 방법
JP5162382B2 (ja) * 2008-09-03 2013-03-13 株式会社神戸製鋼所 低降伏比高靭性厚鋼板
KR101070132B1 (ko) * 2008-12-18 2011-10-05 주식회사 포스코 저온 인성이 우수한 건설용 강재 및 그 제조방법
JP5776398B2 (ja) * 2011-02-24 2015-09-09 Ｊｆｅスチール株式会社 低温靭性に優れた低降伏比高強度熱延鋼板およびその製造方法
KR101546124B1 (ko) * 2013-03-28 2015-08-20 현대제철 주식회사 열연강판 및 그 제조 방법
KR101728789B1 (ko) * 2013-04-04 2017-04-20 제이에프이 스틸 가부시키가이샤 열연 강판 및 그의 제조 방법
JP5783229B2 (ja) * 2013-11-28 2015-09-24 Ｊｆｅスチール株式会社 熱延鋼板およびその製造方法
WO2015098556A1 (fr) * 2013-12-25 2015-07-02 新日鐵住金株式会社 Tuyau en acier soudé par résistance électrique pour puits de pétrole

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5597425A (en) * 1979-01-19 1980-07-24 Nippon Kokan Kk <Nkk> Preparation of high-tensile steel with low yield ratio, low carbon and low alloy
JPH0551694A (ja) * 1991-08-20 1993-03-02 Nkk Corp 低降伏比高張力鋼およびその製造方法
WO2008054166A1 (fr) * 2006-11-02 2008-05-08 Posco Plaque d'acier pour tube de canalisation ayant une résistance extrêmement élevée et une excellente résilience à basse température, et procédé pour la réaliser
KR20090052950A (ko) * 2007-11-22 2009-05-27 주식회사 포스코 저온인성이 우수한 고강도 저항복비 건설용 강재 및 그제조방법
EP2700728A1 (fr) * 2011-04-21 2014-02-26 Nippon Steel & Sumitomo Metal Corporation Tôle d'acier à haute résistance laminée à froid avec des caractéristiques d'étirage très uniformes et une excellente expansibilité des trous, et son procédé de production
WO2014171062A1 (fr) * 2013-04-15 2014-10-23 Ｊｆｅスチール株式会社 Tôle d'acier laminée à chaud de haute résistance, et son procédé de fabrication
KR20150002958A (ko) * 2013-06-27 2015-01-08 현대제철 주식회사 강재 및 그 제조 방법
KR20150074968A (ko) * 2013-12-24 2015-07-02 주식회사 포스코 저온 인성이 우수한 강관용 열연강판 및 그 제조방법

Also Published As

Publication number Publication date
WO2017111345A1 (fr) 2017-06-29
EP3395997B1 (fr) 2020-09-02
US20180371590A1 (en) 2018-12-27
JP2019504199A (ja) 2019-02-14
CN108474090B (zh) 2021-02-12
KR20170076912A (ko) 2017-07-05
KR102348539B1 (ko) 2022-01-07
EP3395997A1 (fr) 2018-10-31
CN108474090A (zh) 2018-08-31
JP6845855B2 (ja) 2021-03-24

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