EP3392367A4 - Matériau en acier à haute résistance ayant d'excellentes propriétés au choc par vieillissement par contrainte à basse température et son procédé de fabrication - Google Patents

Matériau en acier à haute résistance ayant d'excellentes propriétés au choc par vieillissement par contrainte à basse température et son procédé de fabrication Download PDF

Info

Publication number
EP3392367A4
EP3392367A4 EP16876051.0A EP16876051A EP3392367A4 EP 3392367 A4 EP3392367 A4 EP 3392367A4 EP 16876051 A EP16876051 A EP 16876051A EP 3392367 A4 EP3392367 A4 EP 3392367A4
Authority
EP
European Patent Office
Prior art keywords
producing
low temperature
high strength
steel material
same
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
EP16876051.0A
Other languages
German (de)
English (en)
Other versions
EP3392367B1 (fr
EP3392367A1 (fr
Inventor
Kyung-Keun Um
Woo-Gyeom KIM
Hong-Ju Lee
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 EP3392367A1 publication Critical patent/EP3392367A1/fr
Publication of EP3392367A4 publication Critical patent/EP3392367A4/fr
Application granted granted Critical
Publication of EP3392367B1 publication Critical patent/EP3392367B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • 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
    • 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
    • C22C38/42—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
    • 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)
EP16876051.0A 2015-12-15 2016-12-15 Matériau en acier à haute résistance ayant d'excellentes propriétés au choc par vieillissement par contrainte à basse température et son procédé de fabrication Active EP3392367B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020150178977A KR101758483B1 (ko) 2015-12-15 2015-12-15 저온 변형시효 충격특성이 우수한 고강도 강재 및 이의 제조방법
PCT/KR2016/014734 WO2017105109A1 (fr) 2015-12-15 2016-12-15 Matériau en acier à haute résistance ayant d'excellentes propriétés au choc par vieillissement par contrainte à basse température et son procédé de fabrication

Publications (3)

Publication Number Publication Date
EP3392367A1 EP3392367A1 (fr) 2018-10-24
EP3392367A4 true EP3392367A4 (fr) 2019-02-27
EP3392367B1 EP3392367B1 (fr) 2021-10-27

Family

ID=59057097

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16876051.0A Active EP3392367B1 (fr) 2015-12-15 2016-12-15 Matériau en acier à haute résistance ayant d'excellentes propriétés au choc par vieillissement par contrainte à basse température et son procédé de fabrication

Country Status (6)

Country Link
US (2) US20180363111A1 (fr)
EP (1) EP3392367B1 (fr)
JP (1) JP6616002B2 (fr)
KR (1) KR101758483B1 (fr)
CN (1) CN108368593B (fr)
WO (1) WO2017105109A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101758484B1 (ko) 2015-12-15 2017-07-17 주식회사 포스코 저온 변형시효 충격특성 및 용접 열영향부 충격특성이 우수한 고강도 강재 및 이의 제조방법
JP7024063B2 (ja) * 2017-08-23 2022-02-22 宝山鋼鉄股▲分▼有限公司 低温圧力容器用鋼及びその製造方法
KR102020434B1 (ko) * 2017-12-01 2019-09-10 주식회사 포스코 수소 유기 균열 저항성 및 저온 충격인성이 우수한 고강도 강재 및 그 제조방법
KR102131536B1 (ko) * 2018-11-30 2020-07-08 주식회사 포스코 수소유기균열 저항성이 우수한 압력용기용 강재 및 그 제조방법
KR102218423B1 (ko) * 2019-08-23 2021-02-19 주식회사 포스코 저온인성 및 ctod 특성이 우수한 박물 강재 및 그 제조방법
WO2021256590A1 (fr) * 2020-06-19 2021-12-23 현대제철 주식회사 Barre d'armature et procédé de fabrication correspondant
KR20230089767A (ko) * 2021-12-14 2023-06-21 주식회사 포스코 고강도 및 충격인성이 우수한 강재 및 그 제조방법
KR20230090416A (ko) * 2021-12-14 2023-06-22 주식회사 포스코 수소유기균열 저항성 및 저온 충격인성이 우수한 강재 및 그 제조방법

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110060449A (ko) * 2009-11-30 2011-06-08 주식회사 포스코 저온인성 및 수소유기균열 저항성이 우수한 압력용기용 강판 및 그 제조방법
JP2012241266A (ja) * 2011-05-24 2012-12-10 Jfe Steel Corp 高圧縮強度耐サワーラインパイプ用鋼管及びその製造方法
KR20130076569A (ko) * 2011-12-28 2013-07-08 주식회사 포스코 황화물 응력균열 저항성 및 저온인성이 우수한 압력용기용 강재 및 그 제조방법
JP2014043627A (ja) * 2012-08-28 2014-03-13 Nippon Steel & Sumitomo Metal ポリオレフィン被覆ｕｏｅ鋼管及びその製造方法
EP2764946A1 (fr) * 2011-10-03 2014-08-13 JFE Steel Corporation Tube en acier soudé possédant une excellente ténacité dans la zone affectée par la chaleur du soudage, et procédé de production de ce tube
EP2832889A1 (fr) * 2012-03-29 2015-02-04 JFE Steel Corporation Plaque d'acier à haute résistance, à faible rapport d'élasticité, ayant une résistance supérieure au vieillissement après déformation, son procédé de fabrication et tuyau en acier soudé à haute résistance utilisant cette plaque
WO2015151468A1 (fr) * 2014-03-31 2015-10-08 Ｊｆｅスチール株式会社 Matériau en acier pour tuyaux de canalisation hautement déformables ayant des caractéristiques de vieillissement après déformation et caractéristiques anti-hic supérieures, procédé de fabrication de ce dernier et tuyau en acier soudé
KR20150124810A (ko) * 2014-04-29 2015-11-06 현대제철 주식회사 고강도 강판 및 그 제조 방법

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04193907A (ja) * 1990-11-27 1992-07-14 Kobe Steel Ltd 建築用５０ｋｇｆ／ｍｍ↑２級耐火鋼板の製造方法
JP5141073B2 (ja) * 2007-03-30 2013-02-13 Ｊｆｅスチール株式会社 Ｘ７０グレード以下の低降伏比高強度高靱性鋼管およびその製造方法
KR101253890B1 (ko) * 2010-12-28 2013-04-16 주식회사 포스코 중심부 물성 및 수소유기균열 저항성이 우수한 압력용기용 극후물 강판 및 그 제조방법
KR101455458B1 (ko) * 2012-08-30 2014-10-28 현대제철 주식회사 강재 및 그 제조 방법
KR101758484B1 (ko) * 2015-12-15 2017-07-17 주식회사 포스코 저온 변형시효 충격특성 및 용접 열영향부 충격특성이 우수한 고강도 강재 및 이의 제조방법

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110060449A (ko) * 2009-11-30 2011-06-08 주식회사 포스코 저온인성 및 수소유기균열 저항성이 우수한 압력용기용 강판 및 그 제조방법
JP2012241266A (ja) * 2011-05-24 2012-12-10 Jfe Steel Corp 高圧縮強度耐サワーラインパイプ用鋼管及びその製造方法
EP2764946A1 (fr) * 2011-10-03 2014-08-13 JFE Steel Corporation Tube en acier soudé possédant une excellente ténacité dans la zone affectée par la chaleur du soudage, et procédé de production de ce tube
KR20130076569A (ko) * 2011-12-28 2013-07-08 주식회사 포스코 황화물 응력균열 저항성 및 저온인성이 우수한 압력용기용 강재 및 그 제조방법
EP2832889A1 (fr) * 2012-03-29 2015-02-04 JFE Steel Corporation Plaque d'acier à haute résistance, à faible rapport d'élasticité, ayant une résistance supérieure au vieillissement après déformation, son procédé de fabrication et tuyau en acier soudé à haute résistance utilisant cette plaque
JP2014043627A (ja) * 2012-08-28 2014-03-13 Nippon Steel & Sumitomo Metal ポリオレフィン被覆ｕｏｅ鋼管及びその製造方法
WO2015151468A1 (fr) * 2014-03-31 2015-10-08 Ｊｆｅスチール株式会社 Matériau en acier pour tuyaux de canalisation hautement déformables ayant des caractéristiques de vieillissement après déformation et caractéristiques anti-hic supérieures, procédé de fabrication de ce dernier et tuyau en acier soudé
KR20150124810A (ko) * 2014-04-29 2015-11-06 현대제철 주식회사 고강도 강판 및 그 제조 방법

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2017105109A1 *

Also Published As

Publication number Publication date
US20180363111A1 (en) 2018-12-20
KR101758483B1 (ko) 2017-07-17
JP6616002B2 (ja) 2019-12-04
CN108368593A (zh) 2018-08-03
EP3392367B1 (fr) 2021-10-27
EP3392367A1 (fr) 2018-10-24
US20240110267A1 (en) 2024-04-04
JP2019504187A (ja) 2019-02-14
CN108368593B (zh) 2020-10-02
WO2017105109A1 (fr) 2017-06-22
KR20170071639A (ko) 2017-06-26

Similar Documents

Publication Publication Date Title
EP3392367A4 (fr) Matériau en acier à haute résistance ayant d'excellentes propriétés au choc par vieillissement par contrainte à basse température et son procédé de fabrication
EP3584342A4 (fr) Tôle d'acier haute résistance et son procédé de fabrication
EP3828297A4 (fr) Tôle en acier haute résistance et son procédé de production
EP3875623A4 (fr) Tôle d'acier à haute résistance et son procédé de fabrication
EP3581670A4 (fr) Plaque d'acier à haute résistance et son procédé de fabrication
EP3778974A4 (fr) Tôle d'acier à haute résistance et son procédé de fabrication
EP3467134A4 (fr) Tôle d'acier mince à haute résistance et son procédé de fabrication
EP3444372A4 (fr) Feuille d'acier à haute résistance et son procédé de fabrication
MA42495A (fr) Acier à haute résistance et procédé de fabrication
EP3392366A4 (fr) Matériau d'acier à haute résistance ayant d'excellentes propriétés d'impact de vieillissement sous contrainte à basse température et propriétés d'impact de zone affectée par la chaleur de soudage et procédé de fabrication de celui-ci
MA51296A (fr) Tôle d'acier à haute résistance et formabilité élevée et procédé de fabrication
EP3339460A4 (fr) MATÉRIAU D'ACIER INOXYDABLE À BASE DE FERRITE À TENEUR ÉLEVÉE EN Al DOTÉ DE PROPRIÉTÉS D'AMORTISSEMENT, ET PROCÉDÉ DE FABRICATION DE CELUI-CI
EP3495523A4 (fr) Plaque d'acier à haute résistance et son procédé de fabrication
EP3564400A4 (fr) Tôle d'acier galvanisée à résistance élevée et son procédé de fabrication
EP3584337A4 (fr) Tôle d'acier laminée à chaud de haute résistance et son procédé de fabrication
EP3412786A4 (fr) Tôle en acier à haute résistance et son procédé de fabrication
EP3828296A4 (fr) Tôle d'acier à haute résistance et son procédé de production
EP3730659A4 (fr) Matériau en acier à haute résistance pour environnement de région polaire ayant d'excellentes caractéristiques anti-rupture à basses températures et son procédé de fabrication
EP2980256A4 (fr) Tôle d'acier haute performance, résistant à l'usure et faiblement allié et procédé de fabrication de cette dernière
EP3438312A4 (fr) Matériau d'acier de haute résistance et son procédé de fabrication
EP3561110A4 (fr) Acier à teneur élevée en manganèse ayant une ténacité à basse température et une limite d'élasticité supérieures et procédé de fabrication
EP3778975A4 (fr) Tôle d'acier à haute résistance et son procédé de production
EP3508599A4 (fr) Tôle d'acier à haute résistance et son procédé de fabrication
EP3495522A4 (fr) Plaque d'acier à haute résistance et son procédé de fabrication
EP3825433A4 (fr) Tôle d'acier à haute résistance et son procédé de production

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180606

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602016065579

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: C22C0038580000

Ipc: C22C0038020000

A4 Supplementary search report drawn up and despatched

Effective date: 20190129

RIC1 Information provided on ipc code assigned before grant

Ipc: C22C 38/42 20060101ALI20190123BHEP

Ipc: C22C 38/06 20060101ALI20190123BHEP

Ipc: C22C 38/58 20060101ALI20190123BHEP

Ipc: C22C 38/02 20060101AFI20190123BHEP

Ipc: C22C 38/04 20060101ALI20190123BHEP

Ipc: C21D 6/00 20060101ALI20190123BHEP

Ipc: C22C 38/50 20060101ALI20190123BHEP

Ipc: C21D 9/46 20060101ALI20190123BHEP

Ipc: C22C 38/46 20060101ALI20190123BHEP

Ipc: C22C 38/00 20060101ALI20190123BHEP

Ipc: C21D 8/02 20060101ALI20190123BHEP

Ipc: C22C 38/44 20060101ALI20190123BHEP

Ipc: C22C 38/48 20060101ALI20190123BHEP

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20210518

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: POSCO

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1441861

Country of ref document: AT

Kind code of ref document: T

Effective date: 20211115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602016065579

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20211027

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1441861

Country of ref document: AT

Kind code of ref document: T

Effective date: 20211027

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220127

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220227

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220228

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220127

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220128

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602016065579

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602016065579

Country of ref document: DE

Owner name: POSCO CO., LTD, POHANG-SI, KR

Free format text: FORMER OWNER: POSCO, POHANG-SI, GYEONGSANGBUK-DO, KR

Ref country code: DE

Ref legal event code: R081

Ref document number: 602016065579

Country of ref document: DE

Owner name: POSCO CO., LTD, POHANG- SI, KR

Free format text: FORMER OWNER: POSCO, POHANG-SI, GYEONGSANGBUK-DO, KR

Ref country code: DE

Ref legal event code: R081

Ref document number: 602016065579

Country of ref document: DE

Owner name: POSCO HOLDINGS INC., KR

Free format text: FORMER OWNER: POSCO, POHANG-SI, GYEONGSANGBUK-DO, KR

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20211231

26N No opposition filed

Effective date: 20220728

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211215

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211215

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20221027 AND 20221102

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211231

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602016065579

Country of ref document: DE

Owner name: POSCO CO., LTD, POHANG-SI, KR

Free format text: FORMER OWNER: POSCO HOLDINGS INC., SEOUL, KR

Ref country code: DE

Ref legal event code: R081

Ref document number: 602016065579

Country of ref document: DE

Owner name: POSCO CO., LTD, POHANG- SI, KR

Free format text: FORMER OWNER: POSCO HOLDINGS INC., SEOUL, KR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20161215

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20250925

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211027

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20250922

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20251001

Year of fee payment: 10