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

Links

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 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
- C21D8/0221—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
- C21D8/0236—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 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
- C22C38/008—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

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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)

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JP7410936B2 (en) *	2018-09-28	2024-01-10	ポスコカンパニーリミテッド	High-strength cold-rolled steel sheet with high hole expandability, high-strength hot-dip galvanized steel sheet, and manufacturing method thereof
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
US12286682B2 (en)	2019-04-30	2025-04-29	Tata Steel Nederland Technology B.V.	High strength steel product and a process to produce a high strength steel product
EP3754035B2 (en) *	2019-06-17	2025-04-30	Tata Steel IJmuiden B.V.	Method of heat treating a cold rolled steel strip
EP3754034B1 (en)	2019-06-17	2022-03-02	Tata Steel IJmuiden B.V.	Heat treatment of cold rolled steel strip
PT3754036T (en)	2019-06-17	2022-04-20	Tata Steel Ijmuiden Bv	HEAT TREATMENT OF HIGH STRENGTH COLD LAMINATED STEEL STRIP
ES2911662T5 (en)	2019-06-17	2025-06-05	Tata Steel Ijmuiden Bv	Method of heat treating a high strength cold rolled steel strip
JP6879441B1 (en) *	2019-08-20	2021-06-02	Ｊｆｅスチール株式会社	High-strength cold-rolled steel sheet and its manufacturing method
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
WO2021123889A1 (en) *	2019-12-19	2021-06-24	Arcelormittal	Hot rolled and heat-treated steel sheet and method of manufacturing the same
MX2022015543A (en) *	2020-06-12	2023-01-18	Arcelormittal	COLD LAMINATED AND HEAT TREATED STEEL SHEET AND A METHOD OF MANUFACTURING THE SAME.
KR102490312B1 (en) *	2020-12-09	2023-01-19	주식회사 포스코	High-strength hot-dip galvanized steel sheet with high ductility and excellent formability
KR102485009B1 (en) *	2020-12-17	2023-01-04	주식회사 포스코	High strength steel sheet having excellent workability and method for manufacturing the same
KR102485012B1 (en) *	2020-12-17	2023-01-04	주식회사 포스코	High strength steel sheet having excellent workability and method for manufacturing the same
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
CN115161541B (en) *	2021-04-02	2023-08-11	宝山钢铁股份有限公司	780MPa level high formability hot-dip galvanized dual-phase 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
WO2023285867A1 (en) *	2021-07-16	2023-01-19	Arcelormittal	Method of manufacturing of a steel part
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
CN116397158B (en) *	2022-11-22	2025-05-13	首钢集团有限公司	Hot dip galvanized DH steel, preparation method thereof and automobile structural member
CN118639110B (en) *	2024-06-28	2026-02-24	鞍钢股份有限公司	Hot-dip aluminized silicon 1180MPa grade Q&P steel cold-formed steel sheet and its preparation method
CN118581398A (en) *	2024-06-28	2024-09-03	鞍钢股份有限公司	A hot-dip aluminum-silicon 800MPa grade DH steel cold-formed steel plate and its preparation method

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2017
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- 2017-11-29 JP JP2019531765A patent/JP6846522B2/en active Active
- 2017-11-29 WO PCT/KR2017/013762 patent/WO2018110867A1/en not_active Ceased
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Also Published As

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

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