EP3556896A4 - HIGH STRENGTH COLD LAMINATED STEEL SHEET HAVING EXCELLENT ELASTICITY LIMIT, EXCELLENT DUCTILITY, AND EXCELLENT HOLE EXPANSION CAPACITY, HOT DIP GALVANIZED STEEL SHEET AND PRODUCTION METHOD THEREOF - Google Patents

HIGH STRENGTH COLD LAMINATED STEEL SHEET HAVING EXCELLENT ELASTICITY LIMIT, EXCELLENT DUCTILITY, AND EXCELLENT HOLE EXPANSION CAPACITY, HOT DIP GALVANIZED STEEL SHEET AND PRODUCTION METHOD THEREOF Download PDF

Info

Publication number: EP3556896A4
Authority: EP; European Patent Office
Prior art keywords: steel sheet; production method; high strength; dip galvanized; hot dip
Prior art date: 2016-12-16
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

EP17881067.7A

Other languages

German (de)

French (fr)

Other versions

EP3556896A1 (en

EP3556896B1 (en

Inventor

Jai-Hyun Kwak

Hang-Sik Cho

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.)

2016-12-16

Filing date

2017-11-29

Publication date

2019-10-23

2017-11-29 Application filed by Posco Co Ltd filed Critical Posco Co Ltd

2019-10-23 Publication of EP3556896A4 publication Critical patent/EP3556896A4/en

2019-10-23 Publication of EP3556896A1 publication Critical patent/EP3556896A1/en

2021-11-10 Application granted granted Critical

2021-11-10 Publication of EP3556896B1 publication Critical patent/EP3556896B1/en

Status Active legal-status Critical Current

2037-11-29 Anticipated expiration legal-status Critical

Classifications

- 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
- 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
- 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
- C21D8/0221—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
- 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
- C21D8/0236—Cold 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 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
- C21D8/0247—Modifying the physical properties 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 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
- C22C38/008—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
- C22C38/08—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
- 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
- C22C38/50—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
- 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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/40—Plates; 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
- 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)
Chemical Kinetics & Catalysis (AREA)
Heat Treatment Of Sheet Steel (AREA)
Coating With Molten Metal (AREA)

EP17881067.7A 2016-12-16 2017-11-29 High strength cold rolled steel plate having excellent yield strength, ductility and hole expandability, and hot dip galvanized steel plate Active EP3556896B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
KR1020160173006A KR101858852B1 (en)	2016-12-16	2016-12-16	Cold-rolled steel sheet and galvanized steel sheet having excelent elonggation, hole expansion ration and yield strength and method for manufacturing thereof
PCT/KR2017/013762 WO2018110867A1 (en)	2016-12-16	2017-11-29	High strength cold rolled steel plate having excellent yield strength, ductility, and hole expandability, hot dip galvanized steel plate, and method for producing same

Publications (3)

Publication Number	Publication Date
EP3556896A4 true EP3556896A4 (en)	2019-10-23
EP3556896A1 EP3556896A1 (en)	2019-10-23
EP3556896B1 EP3556896B1 (en)	2021-11-10

Family

ID=62558805

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP17881067.7A Active EP3556896B1 (en)	2016-12-16	2017-11-29	High strength cold rolled steel plate having excellent yield strength, ductility and hole expandability, and hot dip galvanized steel plate

Country Status (6)

Country	Link
US (1)	US20200190612A1 (en)
EP (1)	EP3556896B1 (en)
JP (1)	JP6846522B2 (en)
KR (1)	KR101858852B1 (en)
CN (1)	CN110073026B (en)
WO (1)	WO2018110867A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2020067752A1 (en) *	2018-09-28	2020-04-02	주식회사 포스코	High-strength cold rolled steel sheet having high hole expansion ratio, high-strength hot-dip galvanized steel sheet, and manufacturing methods therefor
CN109576579A (en)	2018-11-29	2019-04-05	宝山钢铁股份有限公司	It is a kind of with high hole expansibility and compared with the 980MPa grade cold-rolled steel sheet and its manufacturing method of high-elongation
ES2911662T3 (en)	2019-06-17	2022-05-20	Tata Steel Ijmuiden Bv	Heat treatment method of a high-strength cold-rolled steel strip
EP3754035B1 (en)	2019-06-17	2022-03-02	Tata Steel IJmuiden B.V.	Method of heat treating a cold rolled steel strip
CN114269961B (en) *	2019-08-20	2022-10-28	杰富意钢铁株式会社	High-strength cold-rolled steel sheet and method for producing same
CN110964969B (en) *	2019-11-27	2021-09-21	本钢板材股份有限公司	High-strength hot-dip galvanized quenching distribution steel and production method thereof
WO2021123877A1 (en) *	2019-12-17	2021-06-24	Arcelormittal	Hot rolled steel sheet and method of manufacturing thereof
US20230243007A1 (en) *	2020-06-12	2023-08-03	Arcelormittal	Cold rolled and heat-treated steel sheet and method of manufacturing thereof
CN115161541B (en) *	2021-04-02	2023-08-11	宝山钢铁股份有限公司	780 MPa-level high-formability hot dip galvanized dual phase steel and rapid heat treatment hot dip galvanizing manufacturing method
CN115181895B (en) *	2021-04-02	2023-09-12	宝山钢铁股份有限公司	1180 MPa-level low-carbon low-alloy hot dip galvanized Q & P steel and rapid heat treatment hot dip galvanizing manufacturing method
CN113186459B (en) *	2021-04-08	2022-09-13	山东钢铁股份有限公司	Cold-rolled low-alloy steel strip with yield strength of 355MPa and preparation method thereof
KR20230073569A (en) *	2021-11-19	2023-05-26	주식회사 포스코	Cold rolled steel sheet having excellent strength and formability and method of manufacturing the same
CN115584378B (en) *	2022-09-07	2024-10-01	武汉科技大学	Low-carbon steel residual stress regulation and control method for enhancing Mn distribution plasticity

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR20100076409A (en) *	2008-12-26	2010-07-06	주식회사 포스코	A high strength steel sheet having high yield ratio and a method for producting the same
EP2831296A1 (en) *	2012-03-30	2015-02-04	Voestalpine Stahl GmbH	High strength cold rolled steel sheet and method of producing such steel sheet
WO2016001700A1 (en) *	2014-07-03	2016-01-07	Arcelormittal	Method for producing a high strength steel sheet having improved strength, ductility and formability
WO2016020899A1 (en) *	2014-08-07	2016-02-11	Arcelormittal	Method for producing a coated steel sheet having improved strength, ductility and formability
EP3101147A1 (en) *	2014-01-29	2016-12-07	JFE Steel Corporation	High-strength cold-rolled steel sheet and method for manufacturing same

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR940002370B1 (en)	1991-05-16	1994-03-23	주식회사 금성사	Cooking time control apparatus and method of microwave oven
KR940007374B1 (en)	1992-07-24	1994-08-16	포항종합제철 주식회사	Austenitic high manganese steel with excellent formability, strength and weldability, and its manufacturing method
JP3942799B2 (en)	2000-04-27	2007-07-11	カルソニックカンセイ株式会社	Method and apparatus for separating insert metal fittings of resin molded product
JP2002177278A (en)	2000-12-15	2002-06-25	Hitachi Medical Corp	Ultrasonic diagnostic device
US7090731B2 (en) *	2001-01-31	2006-08-15	Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)	High strength steel sheet having excellent formability and method for production thereof
US20060011274A1 (en)	2002-09-04	2006-01-19	Colorado School Of Mines	Method for producing steel with retained austenite
JP4729850B2 (en) *	2003-02-10	2011-07-20	Ｊｆｅスチール株式会社	Alloyed hot-dip galvanized steel sheet with excellent plating adhesion and method for producing the same
KR100928788B1 (en) *	2007-12-28	2009-11-25	주식회사 포스코	High strength steel sheet with excellent weldability and manufacturing method
JP5418047B2 (en) *	2008-09-10	2014-02-19	Ｊｆｅスチール株式会社	High strength steel plate and manufacturing method thereof
JP5446885B2 (en) *	2010-01-06	2014-03-19	新日鐵住金株式会社	Cold rolled steel sheet manufacturing method
JP5454745B2 (en) *	2011-10-04	2014-03-26	Ｊｆｅスチール株式会社	High strength steel plate and manufacturing method thereof
JP5954011B2 (en)	2012-07-18	2016-07-20	凸版印刷株式会社	Microneedle penetration control device
JP5857909B2 (en) *	2012-08-09	2016-02-10	新日鐵住金株式会社	Steel sheet and manufacturing method thereof
KR101299896B1 (en) *	2013-05-30	2013-08-23	주식회사 포스코	METHOD FOR MANUFACTURING TENSILE STRENGTH 1.5GPa CLASS STEEL SHEET
JP5728108B2 (en) *	2013-09-27	2015-06-03	株式会社神戸製鋼所	High-strength steel sheet with excellent workability and low-temperature toughness, and method for producing the same
WO2015088523A1 (en) *	2013-12-11	2015-06-18	ArcelorMittal Investigación y Desarrollo, S.L.	Cold rolled and annealed steel sheet
JP6306481B2 (en) *	2014-03-17	2018-04-04	株式会社神戸製鋼所	High-strength cold-rolled steel sheet and high-strength hot-dip galvanized steel sheet excellent in ductility and bendability, and methods for producing them
KR101594670B1 (en) *	2014-05-13	2016-02-17	주식회사 포스코	Cold-rolled steel sheet and galvanized steel sheet having excellent ductility and method for manufacturing thereof
WO2016103535A1 (en) *	2014-12-22	2016-06-30	Ｊｆｅスチール株式会社	High-strength hot-dip galvanized steel sheet and manufacturing method thereof
CN107109572B (en) *	2015-01-16	2019-09-10	杰富意钢铁株式会社	High-strength steel sheet and its manufacturing method
MX2017012194A (en) *	2015-03-25	2017-12-15	Jfe Steel Corp	Cold-rolled steel sheet and manufacturing method therefor.
JP6586776B2 (en) *	2015-05-26	2019-10-09	日本製鉄株式会社	High strength steel plate with excellent formability and method for producing the same
US10745775B2 (en) *	2015-06-11	2020-08-18	Nippon Steel Corporation	Galvannealed steel sheet and method for producing the same

2016
- 2016-12-16 KR KR1020160173006A patent/KR101858852B1/en active Active
2017
- 2017-11-29 US US16/468,162 patent/US20200190612A1/en active Pending
- 2017-11-29 WO PCT/KR2017/013762 patent/WO2018110867A1/en unknown
- 2017-11-29 CN CN201780077454.0A patent/CN110073026B/en active Active
- 2017-11-29 EP EP17881067.7A patent/EP3556896B1/en active Active
- 2017-11-29 JP JP2019531765A patent/JP6846522B2/en active Active

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR20100076409A (en) *	2008-12-26	2010-07-06	주식회사 포스코	A high strength steel sheet having high yield ratio and a method for producting the same
EP2831296A1 (en) *	2012-03-30	2015-02-04	Voestalpine Stahl GmbH	High strength cold rolled steel sheet and method of producing such steel sheet
EP3101147A1 (en) *	2014-01-29	2016-12-07	JFE Steel Corporation	High-strength cold-rolled steel sheet and method for manufacturing same
WO2016001700A1 (en) *	2014-07-03	2016-01-07	Arcelormittal	Method for producing a high strength steel sheet having improved strength, ductility and formability
WO2016020899A1 (en) *	2014-08-07	2016-02-11	Arcelormittal	Method for producing a coated steel sheet having improved strength, ductility and formability

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2018110867A1 *

Also Published As

Publication number	Publication date
CN110073026A (en)	2019-07-30
CN110073026B (en)	2021-09-07
JP6846522B2 (en)	2021-03-24
WO2018110867A8 (en)	2019-01-31
JP2020509177A (en)	2020-03-26
KR101858852B1 (en)	2018-06-28
WO2018110867A1 (en)	2018-06-21
EP3556896A1 (en)	2019-10-23
EP3556896B1 (en)	2021-11-10
US20200190612A1 (en)	2020-06-18

Publication	Publication Date	Title
EP3556896A4 (en)	2019-10-23	HIGH STRENGTH COLD LAMINATED STEEL SHEET HAVING EXCELLENT ELASTICITY LIMIT, EXCELLENT DUCTILITY, AND EXCELLENT HOLE EXPANSION CAPACITY, HOT DIP GALVANIZED STEEL SHEET AND PRODUCTION METHOD THEREOF
EP3378965A4 (en)	2019-05-08	HIGH-STRENGTH STEEL SHEET, GALVANIZED BY HOT DIP, HAVING EXCELLENT RESISTANCE TO SHOCK AND CORROSION DETACHING OF AN OPEN SECTION
MA49449A (en)	2020-04-29	ZINC COATED STEEL SHEET WITH HIGH STRENGTH SPOT WELDABILITY
MA43659A (en)	2018-11-28	HIGH STRENGTH STEEL SHEET SHOWING EXCELLENT FORMATABILITY AND MANUFACTURING PROCESS
MA49159A (en)	2021-04-21	PROCESS FOR THE PRODUCTION OF A HIGH STRENGTH STEEL SHEET WITH IMPROVED STRENGTH AND FORMABILITY AND HIGH STRENGTH STEEL SHEET THUS OBTAINED
EP4012064C0 (en)	2024-03-27	STEEL SHEET FOR HOT-PRESSED ELEMENT HAVING EXCELLENT PAINT ADHESION AND EXCELLENT RESISTANCE TO POST-PAINTING CORROSION, AND METHOD FOR MANUFACTURING SAME
MA39954B1 (en)	2019-05-31	Cold rolled and hot dip coated steel sheet, method of manufacture and use
EP3434801A4 (en)	2019-10-09	HIGH-STRENGTH STEEL SHEET AND HIGH-STRENGTH GALVANIZED STEEL SHEET
EP3584337A4 (en)	2019-12-25	HIGH-STRENGTH HOT-ROLLED STEEL SHEET AND MANUFACTURING METHOD THEREOF
EP3561141A4 (en)	2019-12-18	HOT DIP ALUMINIZED STEEL MATERIAL HAVING EXCELLENT CORROSION RESISTANCE AND EXCELLENT SHAPING ABILITY, AND MANUFACTURING METHOD THEREOF
EP3561116C0 (en)	2024-08-21	ALUMINUM ALLOY PLATED STEEL MATERIAL HAVING EXCELLENT CORROSION RESISTANCE AND METHOD FOR MANUFACTURING SAME
EP3517636A4 (en)	2019-09-04	COLD ROLLED STEEL SHEET FOR HOT FORMING, HAVING EXCELLENT PROPERTIES OF CORROSION RESISTANCE AND STITCH WELDING, HOT-FORMED ELEMENT, AND METHOD FOR MANUFACTURING THE SAME
EP2762583A4 (en)	2015-12-02	HIGH-STRENGTH HOT-DIP GALVANIZED STEEL SHEET WITH EXCELLENT BREAKAGE RESISTANCE AND PRODUCTION METHOD THEREOF
MA50091A (en)	2021-03-31	SHEET STEEL SHOWING EXCELLENT TENACITY, DUCTILITY AND STRENGTH, AND ITS MANUFACTURING PROCESS
EP3040440A4 (en)	2016-08-17	HOT GALVANIZED STEEL SHEET WITH HIGH STRENGTH AND METHOD OF MANUFACTURING THE SAME
EP3054025A4 (en)	2016-11-30	HOT GALVANIZED STEEL SHEET WITH HIGH STRENGTH AND METHOD FOR MANUFACTURING THE SAME
EP3438307A4 (en)	2019-08-28	HOT GALVANIZED STEEL SHEET
EP2921569A4 (en)	2016-07-27	HOT GALVANIZED STEEL SHEET SUPER-RESISTANT AND HAVING HIGH DEFORMABILITY AND PROCESS FOR PRODUCING THE SAME
MA53357A (en)	2021-06-09	METHOD FOR PRODUCING A HIGH STRENGTH COATED STEEL SHEET HAVING IMPROVED STRENGTH, DUCTILITY AND FORMABILITY
EP3473742A4 (en)	2019-05-15	HIGH-DUTY, HIGH-STRENGTH DUCTILITY STEEL SHEET HAVING EXCELLENT ELASTIC LIMIT AND METHOD FOR MANUFACTURING SAME
EP2794950A4 (en)	2015-11-11	HOT DIP GALVANIZED STEEL SHEET HAVING EXCELLENT ULTRA-BASS TEMPERATURE HANDLING AND METHOD FOR MANUFACTURING THE SAME
MA49777A (en)	2020-06-10	PROCESS FOR THE PRODUCTION OF A HIGH STRENGTH STEEL SHEET WITH IMPROVED STRENGTH AND FORMABILITY AND SHEET THUS OBTAINED
EP3647444A4 (en)	2020-05-06	HOT COMPRESSION ELEMENT AND MANUFACTURING METHOD THEREOF, AND COLD-ROLLED STEEL SHEET FOR HOT COMPRESSION AND MANUFACTURING METHOD THEREOF
EP3561135A4 (en)	2019-12-25	HOT DIP GALVANIZED STEEL MATERIAL HAVING EXCELLENT WELDABILITY AND EXCELLENT PRESS-SHAPING SUITABILITY AND METHOD OF MANUFACTURING THE SAME
EP3556894A4 (en)	2019-10-23	ULTRA-HIGH RESISTANCE STEEL SHEET HAVING EXCELLENT PLIABILITY AND METHOD FOR MANUFACTURING THE SAME

Legal Events

Date	Code	Title	Description
2018-06-23	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
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
2019-09-20	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2019-10-23	17P	Request for examination filed	Effective date: 20190701
2019-10-23	A4	Supplementary search report drawn up and despatched	Effective date: 20190916
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
2020-03-25	DAV	Request for validation of the european patent (deleted)
2020-03-25	DAX	Request for extension of the european patent (deleted)
2020-11-20	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: EXAMINATION IS IN PROGRESS
2020-12-23	17Q	First examination report despatched	Effective date: 20201120
2021-06-01	GRAP	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOSNIGR1
2021-06-01	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: GRANT OF PATENT IS INTENDED
2021-06-30	INTG	Intention to grant announced	Effective date: 20210602
2021-10-01	GRAS	Grant fee paid	Free format text: ORIGINAL CODE: EPIDOSNIGR3
2021-10-08	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
2021-10-08	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE PATENT HAS BEEN GRANTED
2021-11-10	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
2021-11-10	REG	Reference to a national code	Ref country code: GB Ref legal event code: FG4D
2021-11-15	REG	Reference to a national code	Ref country code: AT Ref legal event code: REF Ref document number: 1446161 Country of ref document: AT Kind code of ref document: T Effective date: 20211115 Ref country code: CH Ref legal event code: EP
2021-11-25	REG	Reference to a national code	Ref country code: DE Ref legal event code: R096 Ref document number: 602017049273 Country of ref document: DE
2021-12-08	REG	Reference to a national code	Ref country code: IE Ref legal event code: FG4D
2022-03-10	REG	Reference to a national code	Ref country code: LT Ref legal event code: MG9D
2022-03-16	REG	Reference to a national code	Ref country code: NL Ref legal event code: MP Effective date: 20211110
2022-04-15	REG	Reference to a national code	Ref country code: AT Ref legal event code: MK05 Ref document number: 1446161 Country of ref document: AT Kind code of ref document: T Effective date: 20211110
2022-04-29	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: 20211110 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: 20211110 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: 20211110 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: 20220210 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: 20211110
2022-06-01	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: 20220310 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: 20211110 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: 20220310 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: 20211110 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: 20220210 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: 20211110 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: 20211110 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: 20211110 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: 20220211 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: 20211110
2022-06-30	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL
2022-07-29	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: 20211110 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: 20211110 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: 20211110 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20211129 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: 20211110 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: 20211110 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: 20211110 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20211130
2022-08-01	REG	Reference to a national code	Ref country code: BE Ref legal event code: MM Effective date: 20211130
2022-08-11	REG	Reference to a national code	Ref country code: DE Ref legal event code: R097 Ref document number: 602017049273 Country of ref document: DE
2022-08-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	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: 20211110 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20211130 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20211130
2022-09-16	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
2022-09-16	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
2022-09-21	REG	Reference to a national code	Ref country code: DE Ref legal event code: R081 Ref document number: 602017049273 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: 602017049273 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: 602017049273 Country of ref document: DE Owner name: POSCO HOLDINGS INC., KR Free format text: FORMER OWNER: POSCO, POHANG-SI, GYEONGSANGBUK-DO, KR
2022-10-19	26N	No opposition filed	Effective date: 20220811
2022-10-26	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 20220210
2022-10-31	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: 20211129 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: 20211110
2022-11-30	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: 20211110
2023-01-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20220210
2023-04-18	REG	Reference to a national code	Ref country code: DE Ref legal event code: R081 Ref document number: 602017049273 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: 602017049273 Country of ref document: DE Owner name: POSCO CO., LTD, POHANG- SI, KR Free format text: FORMER OWNER: POSCO HOLDINGS INC., SEOUL, KR
2023-06-30	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: 20211110
2023-07-31	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: 20171129
2024-04-30	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: 20211110
2024-09-30	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: 20211110
2025-01-10	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 20241121 Year of fee payment: 8
2025-01-20	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 20241121 Year of fee payment: 8
2025-01-28	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: IT Payment date: 20241125 Year of fee payment: 8