EP3730655A4 - Tôle d'acier à haute résistance et son procédé de fabrication - Google Patents

Tôle d'acier à haute résistance et son procédé de fabrication Download PDF

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Publication number
EP3730655A4
EP3730655A4 EP18891912.0A EP18891912A EP3730655A4 EP 3730655 A4 EP3730655 A4 EP 3730655A4 EP 18891912 A EP18891912 A EP 18891912A EP 3730655 A4 EP3730655 A4 EP 3730655A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing process
steel plate
high strength
strength steel
manufacturing
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
EP18891912.0A
Other languages
German (de)
English (en)
Other versions
EP3730655A1 (fr
EP3730655B1 (fr
Inventor
Soon-Taik Hong
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 EP3730655A1 publication Critical patent/EP3730655A1/fr
Publication of EP3730655A4 publication Critical patent/EP3730655A4/fr
Application granted granted Critical
Publication of EP3730655B1 publication Critical patent/EP3730655B1/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
    • C22C38/18—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
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and 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 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
    • 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
    • C22C38/001—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
    • C22C38/18—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
    • C22C38/58—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
    • 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
    • C21D2211/008—Martensite

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)
EP18891912.0A 2017-12-24 2018-11-28 Plaque d'acier à haute résistance et son procédé de fabrication Active EP3730655B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020170178924A KR102031450B1 (ko) 2017-12-24 2017-12-24 고강도 강판 및 그 제조방법
PCT/KR2018/014855 WO2019124793A1 (fr) 2017-12-24 2018-11-28 Tôle d'acier à haute résistance et son procédé de fabrication

Publications (3)

Publication Number Publication Date
EP3730655A1 EP3730655A1 (fr) 2020-10-28
EP3730655A4 true EP3730655A4 (fr) 2020-10-28
EP3730655B1 EP3730655B1 (fr) 2022-05-18

Family

ID=66993726

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18891912.0A Active EP3730655B1 (fr) 2017-12-24 2018-11-28 Plaque d'acier à haute résistance et son procédé de fabrication

Country Status (6)

Country Link
US (2) US20200347478A1 (fr)
EP (1) EP3730655B1 (fr)
JP (1) JP7096337B2 (fr)
KR (1) KR102031450B1 (fr)
CN (1) CN111566249B (fr)
WO (1) WO2019124793A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102440756B1 (ko) * 2020-12-15 2022-09-08 주식회사 포스코 표면 경도가 낮고 저온 충격인성이 우수한 강재 및 그 제조방법
CN115478134B (zh) * 2022-09-27 2024-09-10 首钢集团有限公司 一种钢板轧后直接淬火的方法
CN115558863B (zh) * 2022-10-19 2023-04-07 鞍钢集团北京研究院有限公司 一种屈服强度≥750MPa的低屈强比海工钢及其生产工艺
CN116287606A (zh) * 2023-02-24 2023-06-23 首钢集团有限公司 一种提高在线淬火高强钢强度的方法
CN117721281A (zh) * 2023-11-21 2024-03-19 包头钢铁（集团）有限责任公司 一种提高在线淬火高强钢低温冲击韧性的方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100833069B1 (ko) * 2006-12-13 2008-05-27 주식회사 포스코 내ｈｉｃ특성 및 ｈａｚ 인성이 우수한 인장강도 500㎫급압력용기용 강판 및 그 제조 방법
WO2010074473A2 (fr) * 2008-12-26 2010-07-01 Posco Plaque d'acier à haute résistance pour enceinte de confinement de réacteur nucléaire et son procédé de fabrication
JP2014218707A (ja) * 2013-05-09 2014-11-20 Ｊｆｅスチール株式会社 耐水素誘起割れ性に優れた調質鋼板及びその製造方法
JP2015124435A (ja) * 2013-12-27 2015-07-06 Ｊｆｅスチール株式会社 脆性亀裂伝播停止特性に優れる原子炉格納容器用厚鋼板

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4475023B2 (ja) * 2004-06-10 2010-06-09 住友金属工業株式会社 低温靱性に優れた超高強度ベンド管
CN101962741B (zh) * 2009-07-24 2012-08-08 宝山钢铁股份有限公司 一种调质钢板及其制造方法
KR101271990B1 (ko) * 2009-12-01 2013-06-05 주식회사 포스코 고강도 강판 및 그 제조방법
CN103320701B (zh) * 2012-03-23 2016-08-03 宝山钢铁股份有限公司 一种铁素体贝氏体先进高强度钢板及其制造方法
EP2871254B1 (fr) * 2012-09-13 2020-06-24 JFE Steel Corporation Tôle d'acier laminée à chaud et procédé pour la fabriquer
JP5679091B1 (ja) * 2013-04-04 2015-03-04 Ｊｆｅスチール株式会社 熱延鋼板およびその製造方法
EP2998414B1 (fr) * 2013-05-14 2019-04-24 Nippon Steel & Sumitomo Metal Corporation Feuille d'acier laminee a chaud et son procede de production
JP6024928B2 (ja) * 2013-12-27 2016-11-16 Ｊｆｅスチール株式会社 脆性亀裂伝播停止特性に優れる船舶用、海洋構造物用および水圧鉄管用厚鋼板およびその製造方法
KR20150101735A (ko) * 2014-02-27 2015-09-04 현대제철 주식회사 강판 및 그 제조 방법
KR101657823B1 (ko) * 2014-12-24 2016-09-20 주식회사 포스코 저온인성 및 수소유기균열 저항성이 우수한 강재 및 그 제조방법
EP3276026B1 (fr) * 2015-03-26 2019-08-28 JFE Steel Corporation Tôle d'acier épaisse pour tube de construction, procédé de fabrication de tôle d'acier épaisse pour tube de construction, et tube de construction
JP6369658B1 (ja) * 2017-09-19 2018-08-08 新日鐵住金株式会社 鋼管及び鋼板

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100833069B1 (ko) * 2006-12-13 2008-05-27 주식회사 포스코 내ｈｉｃ특성 및 ｈａｚ 인성이 우수한 인장강도 500㎫급압력용기용 강판 및 그 제조 방법
WO2010074473A2 (fr) * 2008-12-26 2010-07-01 Posco Plaque d'acier à haute résistance pour enceinte de confinement de réacteur nucléaire et son procédé de fabrication
JP2014218707A (ja) * 2013-05-09 2014-11-20 Ｊｆｅスチール株式会社 耐水素誘起割れ性に優れた調質鋼板及びその製造方法
JP2015124435A (ja) * 2013-12-27 2015-07-06 Ｊｆｅスチール株式会社 脆性亀裂伝播停止特性に優れる原子炉格納容器用厚鋼板

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2019124793A1 *

Also Published As

Publication number Publication date
CN111566249A (zh) 2020-08-21
CN111566249B (zh) 2022-05-13
WO2019124793A1 (fr) 2019-06-27
US20200347478A1 (en) 2020-11-05
EP3730655A1 (fr) 2020-10-28
JP7096337B2 (ja) 2022-07-05
JP2021508774A (ja) 2021-03-11
US20260055479A1 (en) 2026-02-26
KR102031450B1 (ko) 2019-10-11
EP3730655B1 (fr) 2022-05-18
KR20190077177A (ko) 2019-07-03

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