EP3556895A4 - Feuillard d'acier à haute teneur en carbone laminé à chaud offrant une excellente qualité de surface, et son procédé de fabrication - Google Patents

Feuillard d'acier à haute teneur en carbone laminé à chaud offrant une excellente qualité de surface, et son procédé de fabrication Download PDF

Info

Publication number: EP3556895A4
Authority: EP; European Patent Office
Prior art keywords: manufacturing; steel sheet; rolled steel; surface quality; method therefor
Prior art date: 2016-12-14
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP17880634.5A

Other languages

German (de)

English (en)

Other versions

EP3556895A1 (fr

Inventor

Deuk-Jung 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.)

2016-12-14

Filing date

2017-12-08

Publication date

2019-12-25

2017-12-08 Application filed by Posco Co Ltd filed Critical Posco Co Ltd

2019-10-23 Publication of EP3556895A1 publication Critical patent/EP3556895A1/fr

2019-12-25 Publication of EP3556895A4 publication Critical patent/EP3556895A4/fr

Status Withdrawn legal-status Critical Current

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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/02—Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
- 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
- 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
- C22C38/001—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
- C22C38/06—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
- 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
- C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium 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
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium 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
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium 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
- 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
- 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
- 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 Sheet Steel (AREA)

EP17880634.5A 2016-12-14 2017-12-08 Feuillard d'acier à haute teneur en carbone laminé à chaud offrant une excellente qualité de surface, et son procédé de fabrication Withdrawn EP3556895A4 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
KR1020160170370A KR101830551B1 (ko)	2016-12-14	2016-12-14	표면품질이 우수한 고탄소 열연강판 및 이의 제조방법
PCT/KR2017/014362 WO2018110906A1 (fr)	2016-12-14	2017-12-08	Feuillard d'acier à haute teneur en carbone laminé à chaud offrant une excellente qualité de surface, et son procédé de fabrication

Publications (2)

Publication Number	Publication Date
EP3556895A1 EP3556895A1 (fr)	2019-10-23
EP3556895A4 true EP3556895A4 (fr)	2019-12-25

Family

ID=61394694

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP17880634.5A Withdrawn EP3556895A4 (fr)	2016-12-14	2017-12-08	Feuillard d'acier à haute teneur en carbone laminé à chaud offrant une excellente qualité de surface, et son procédé de fabrication

Country Status (6)

Country	Link
US (1)	US20200071800A1 (fr)
EP (1)	EP3556895A4 (fr)
JP (1)	JP2020509173A (fr)
KR (1)	KR101830551B1 (fr)
CN (1)	CN110050085A (fr)
WO (1)	WO2018110906A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP7564876B2 (ja) *	2020-02-18	2024-10-09	ポスコホールディングスインコーポレーティッド	表面品質に優れた高炭素鋼板及びその製造方法
JP7532824B2 (ja) *	2020-03-16	2024-08-14	株式会社プロテリアル	熱間加工用金型用鋼、熱間加工用金型およびその製造方法
CN112126850B (zh) *	2020-08-24	2022-02-22	上海衍衡新材料科技有限公司	一种耐蚀针布钢及制备方法
JP7334700B2 (ja) *	2020-09-28	2023-08-29	Ｊｆｅスチール株式会社	厚鋼板およびその製造方法
CN115228942A (zh) *	2022-07-15	2022-10-25	武汉钢铁有限公司	一种薄板热轧板形控制的方法、记录媒体及系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH02194145A (ja) *	1989-01-20	1990-07-31	Sumitomo Metal Ind Ltd	高炭素薄鋼板
JPH0344422A (ja) *	1989-07-10	1991-02-26	Sumitomo Metal Ind Ltd	高炭素薄鋼板の製造方法
JPH08260098A (ja) *	1995-03-20	1996-10-08	Nisshin Steel Co Ltd	酸化スケール密着性が高い熱処理用鋼板
JP2009197256A (ja) *	2008-02-19	2009-09-03	Nisshin Steel Co Ltd	高炭素鋼板の製造方法
KR20120133895A (ko) *	2011-06-01	2012-12-11	주식회사 포스코	열연 강판 및 그 제조방법
WO2016152870A1 (fr) *	2015-03-23	2016-09-29	新日鐵住金株式会社	Tôle d'acier laminée à chaud et son procédé de fabrication, et procédé de fabrication d'une tôle d'acier laminée à froid

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH08337843A (ja) *	1995-06-09	1996-12-24	Kobe Steel Ltd	打抜き加工性に優れた高炭素熱延鋼板及びその製造方法
JP5050433B2 (ja) *	2005-10-05	2012-10-17	Ｊｆｅスチール株式会社	極軟質高炭素熱延鋼板の製造方法
JP2008260023A (ja) *	2007-04-10	2008-10-30	Mitsui Mining & Smelting Co Ltd	金属複合材料の製造方法及び金属複合材料からなる部材
JP4903839B2 (ja)	2009-07-02	2012-03-28	新日本製鐵株式会社	打抜き性に優れた軟質高炭素鋼板及びその製造方法
JP5064525B2 (ja)	2010-02-18	2012-10-31	新日本製鐵株式会社	異方性が小さく焼入性に優れた高炭素鋼板及びその製造方法
KR101281794B1 (ko) *	2011-03-28	2013-07-05	한국기계연구원	알루미늄 기지 복합재료 제조방법 및 이에 의해 제조된 알루미늄 기지 복합재료
JP5812048B2 (ja)	2013-07-09	2015-11-11	Ｊｆｅスチール株式会社	焼入れ性および加工性に優れる高炭素熱延鋼板およびその製造方法
JP2015137422A (ja) *	2014-01-24	2015-07-30	Ｊｆｅスチール株式会社	熱延鋼板およびその製造方法
JP6578728B2 (ja) *	2015-04-28	2019-09-25	日本製鉄株式会社	高強度熱延鋼板及びその製造方法

2016
- 2016-12-14 KR KR1020160170370A patent/KR101830551B1/ko active Active
2017
- 2017-12-08 EP EP17880634.5A patent/EP3556895A4/fr not_active Withdrawn
- 2017-12-08 WO PCT/KR2017/014362 patent/WO2018110906A1/fr not_active Ceased
- 2017-12-08 JP JP2019531414A patent/JP2020509173A/ja active Pending
- 2017-12-08 CN CN201780075815.8A patent/CN110050085A/zh not_active Withdrawn
- 2017-12-08 US US16/468,114 patent/US20200071800A1/en not_active Abandoned

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH02194145A (ja) *	1989-01-20	1990-07-31	Sumitomo Metal Ind Ltd	高炭素薄鋼板
JPH0344422A (ja) *	1989-07-10	1991-02-26	Sumitomo Metal Ind Ltd	高炭素薄鋼板の製造方法
JPH08260098A (ja) *	1995-03-20	1996-10-08	Nisshin Steel Co Ltd	酸化スケール密着性が高い熱処理用鋼板
JP2009197256A (ja) *	2008-02-19	2009-09-03	Nisshin Steel Co Ltd	高炭素鋼板の製造方法
KR20120133895A (ko) *	2011-06-01	2012-12-11	주식회사 포스코	열연 강판 및 그 제조방법
WO2016152870A1 (fr) *	2015-03-23	2016-09-29	新日鐵住金株式会社	Tôle d'acier laminée à chaud et son procédé de fabrication, et procédé de fabrication d'une tôle d'acier laminée à froid
EP3276030A1 (fr) *	2015-03-23	2018-01-31	Nippon Steel & Sumitomo Metal Corporation	Tôle d'acier laminée à chaud et son procédé de fabrication, et procédé de fabrication d'une tôle d'acier laminée à froid

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2018110906A1 *

Also Published As

Publication number	Publication date
CN110050085A (zh)	2019-07-23
WO2018110906A1 (fr)	2018-06-21
EP3556895A1 (fr)	2019-10-23
US20200071800A1 (en)	2020-03-05
JP2020509173A (ja)	2020-03-26
KR101830551B1 (ko)	2018-02-20

Legal Events

Date	Code	Title	Description
2019-09-20	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
2019-10-23	17P	Request for examination filed	Effective date: 20190628
2019-10-23	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
2019-10-23	AX	Request for extension of the european patent	Extension state: BA ME
2019-12-25	A4	Supplementary search report drawn up and despatched	Effective date: 20191121
2019-12-25	RIC1	Information provided on ipc code assigned before grant	Ipc: C22C 38/60 20060101AFI20191115BHEP Ipc: C21D 9/46 20060101ALI20191115BHEP Ipc: C22C 38/44 20060101ALI20191115BHEP Ipc: C22C 38/46 20060101ALI20191115BHEP Ipc: C21D 8/02 20060101ALI20191115BHEP Ipc: C22C 38/42 20060101ALI20191115BHEP
2020-03-25	DAV	Request for validation of the european patent (deleted)
2020-03-25	DAX	Request for extension of the european patent (deleted)
2020-06-05	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN
2020-07-08	18W	Application withdrawn	Effective date: 20200603

Publication	Publication Date	Title
EP3276022A4 (fr)	2018-04-25	Tôle d'acier laminée à froid et son procédé de fabrication
EP3284841A4 (fr)	2018-12-19	Tôle d'acier laminée à chaud et son procédé de fabrication
EP3263733A4 (fr)	2018-11-14	Tôle d'acier laminée à froid et son procédé de fabrication
EP3415656A4 (fr)	2018-12-19	Tôle d'acier à haute résistance et procédé de fabrication de cette dernière
EP3415655A4 (fr)	2018-12-19	Tôle d'acier à haute résistance et procédé de fabrication de cette dernière
EP3276030A4 (fr)	2018-10-10	Tôle d'acier laminée à chaud et son procédé de fabrication, et procédé de fabrication d'une tôle d'acier laminée à froid
EP3279353A4 (fr)	2018-02-07	Tôle d'acier laminée à chaud et son procédé de production
EP3406748A4 (fr)	2018-11-28	Tôle d'acier à haute résistance et son procédé de fabrication
EP3115475A4 (fr)	2017-09-13	Tôle d'acier à teneur en carbone moyenne/élevée et son procédé de fabrication
EP3228722A4 (fr)	2017-11-08	Tôle d'acier mince de haute résistance laminée à froid et son procédé de fabrication
EP3112488A4 (fr)	2017-03-22	Tôle d'acier laminée à chaud à haute résistance et son procédé de fabrication
EP3266900A4 (fr)	2018-01-17	TÔLE D'ACIER PLAQUÉE D'Al-Zn-Mg-Si EN FUSION ET PROCÉDÉ DE FABRICATION S'Y RAPPORTANT
EP3309273A4 (fr)	2018-12-26	Tôle d'acier recuite par galvanisation et procédé permettant de fabriquer cette dernière
EP3216889A4 (fr)	2017-10-25	Tôle d'acier à haute teneur en carbone laminée à froid et son procédé de fabrication
EP3354360A4 (fr)	2018-08-01	Procédé de fabrication d'une tôle d'acier plaqué ayant d'excellentes qualité de surface et aptitude au formage à la presse et tôle d'acier plaqué ainsi fabriquée
EP3101147A4 (fr)	2017-03-01	Tôle d'acier laminée à froid à haute résistance, et son procédé de fabrication
EP3272892A4 (fr)	2018-01-24	Tôle d'acier laminée à froid à haute résistance et son procédé de fabrication
EP3312299A4 (fr)	2018-12-05	Tôle d'acier et procédé de fabrication
EP3556482A4 (fr)	2019-12-18	Rouleau de laminage et tôle d'acier plaquée produite au moyen de celui-ci
EP3305931A4 (fr)	2018-12-12	Tôle d'acier et son procédé de fabrication
EP3346019A4 (fr)	2018-09-12	Tôle d'acier mince à haute résistance et procédé pour la fabrication de cette dernière
EP3091098A4 (fr)	2017-04-05	Tôle d'acier laminée à chaud à haute teneur en carbone et son procédé de production
EP3543367A4 (fr)	2019-10-23	Tôle d'acier haute résistance laminée à froid et son procédé de fabrication
EP3412787A4 (fr)	2018-12-12	Tôle d'acier mince à résistance élevée et son procédé de fabrication
EP3255167A4 (fr)	2018-07-04	Tôle d'acier à haute résistance, et procédé de fabrication de celle-ci