EP3395987A4 - Low-yield ratio and high-strength steel having excellent stress corrosion cracking resistance and low temperature toughness - Google Patents

Low-yield ratio and high-strength steel having excellent stress corrosion cracking resistance and low temperature toughness Download PDF

Info

Publication number: EP3395987A4
Authority: EP; European Patent Office
Prior art keywords: low; strength steel; cracking resistance; stress corrosion; corrosion cracking
Prior art date: 2015-12-23
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

EP16879393.3A

Other languages

German (de)

French (fr)

Other versions

EP3395987A1 (en

EP3395987B1 (en

Inventor

Sung-Ho Jang

Hak-Cheol 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.)

2015-12-23

Filing date

2016-12-23

Publication date

2018-11-07

2016-12-23 Application filed by Posco Co Ltd filed Critical Posco Co Ltd

2018-10-31 Publication of EP3395987A1 publication Critical patent/EP3395987A1/en

2018-11-07 Publication of EP3395987A4 publication Critical patent/EP3395987A4/en

2020-04-29 Application granted granted Critical

2020-04-29 Publication of EP3395987B1 publication Critical patent/EP3395987B1/en

Status Active legal-status Critical Current

2036-12-23 Anticipated expiration legal-status Critical

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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/001—Heat treatment of ferrous alloys containing 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 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
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous 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
- C22C38/02—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
- 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)
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)

EP16879393.3A 2015-12-23 2016-12-23 Low-yield ratio and high-strength steel having excellent stress corrosion cracking resistance and low temperature toughness Active EP3395987B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
KR1020150185496A KR101767778B1 (en)	2015-12-23	2015-12-23	Low yield ratio high strength steel having excellent resistance for stress corrosion cracking and low temperature toughness, and method for manufacturing the same
PCT/KR2016/015156 WO2017111526A1 (en)	2015-12-23	2016-12-23	Low-yield ratio and high-strength steel having excellent stress corrosion cracking resistance and low temperature toughness

Publications (3)

Publication Number	Publication Date
EP3395987A1 EP3395987A1 (en)	2018-10-31
EP3395987A4 true EP3395987A4 (en)	2018-11-07
EP3395987B1 EP3395987B1 (en)	2020-04-29

Family

ID=59089647

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP16879393.3A Active EP3395987B1 (en)	2015-12-23	2016-12-23	Low-yield ratio and high-strength steel having excellent stress corrosion cracking resistance and low temperature toughness

Country Status (7)

Country	Link
US (1)	US20180371588A1 (en)
EP (1)	EP3395987B1 (en)
JP (1)	JP6691217B2 (en)
KR (1)	KR101767778B1 (en)
CN (1)	CN108431274B (en)
CA (1)	CA3009137C (en)
WO (1)	WO2017111526A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR101999018B1 (en) *	2017-12-24	2019-07-10	주식회사 포스코	Thick steel plate with excellent low-temperature toughness and method for manufacturing the same
KR102164097B1 (en) *	2018-10-26	2020-10-12	주식회사 포스코	High-strength steel sheet having excellent resistance of sulfide stress crack, and method for manufacturing thereof
KR102307946B1 (en) *	2019-12-09	2021-09-30	주식회사 포스코	Steel plate for structure with a good seawater corrosion resistive property and method of manufacturing the same
KR102326109B1 (en) *	2019-12-16	2021-11-16	주식회사 포스코	Steel sheet having excellent resistance of sulfide stress cracking and method of manufacturing the same
KR102400036B1 (en) *	2020-04-13	2022-05-19	주식회사 포스코	Steel sheet having excellent low temperature toughness and low yield ratio and method of manufacturing the same
CN112342458B (en) *	2020-09-01	2022-01-11	南京钢铁股份有限公司	A kind of high-strength steel with low yield ratio and resistance to stress corrosion cracking and preparation method thereof
CN113832399B (en) *	2021-09-23	2022-10-11	马鞍山钢铁股份有限公司	Economical pipeline steel resistant to hydrogen sulfide corrosion and production method thereof
CN113913695B (en) *	2021-10-13	2022-10-18	鞍钢股份有限公司	Corrosion-resistant and fatigue-resistant pipeline steel for underwater oil and gas production and production method thereof
CN114005602A (en) *	2021-11-02	2022-02-01	兰州理工大学	Low-carbon high-strength low-resistivity cable core material, preparation method and application
AU2023255865A1 (en) *	2022-04-20	2024-08-15	Jfe Steel Corporation	Steel plate and method of producing same
WO2023203702A1 (en) *	2022-04-20	2023-10-26	Ｊｆｅスチール株式会社	Steel sheet and method for manufacturing same
JP7401839B1 (en) *	2023-05-18	2023-12-20	日本製鉄株式会社	Evaluation method for stress corrosion cracking characteristics in liquid ammonia
JP7401838B1 (en) *	2023-05-18	2023-12-20	日本製鉄株式会社	Evaluation method for stress corrosion cracking characteristics in liquid ammonia

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2009127065A (en) *	2007-11-20	2009-06-11	Nippon Steel Corp	Low yield ratio high strength steel sheet excellent in base metal low temperature toughness and HAZ low temperature toughness and its manufacturing method
WO2009072753A1 (en) *	2007-12-04	2009-06-11	Posco	High-strength steel sheet with excellent low temperature toughness and manufacturing method thereof
JP2012107310A (en) *	2010-10-28	2012-06-07	Jfe Steel Corp	Non-tempered low-yield-ratio high-tensile-strength steel plate and method for manufacturing the same
KR20130110643A (en) *	2012-03-29	2013-10-10	현대제철 주식회사	Steel and method of manufacturing the same
EP2940172A1 (en) *	2012-12-27	2015-11-04	Posco	High strength steel sheet having excellent cryogenic temperature toughness and low yield ratio properties, and method for manufacturing same

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS58153730A (en)	1982-03-05	1983-09-12	Sumitomo Metal Ind Ltd	Method of manufacturing high-tensile strength steel plate for use at low temperature
JPS63290246A (en)	1987-05-22	1988-11-28	Kawasaki Steel Corp	Steel for low-temperature excellent in toughness in weld zone
JPH0417613A (en)	1990-05-12	1992-01-22	Nippon Steel Corp	Manufacture of high tension steel having superior resistance to stress corrosion cracking
JPH07188742A (en) *	1993-12-28	1995-07-25	Kawasaki Steel Corp	Production of steel for low temperature use
JPH08209239A (en) *	1995-02-01	1996-08-13	Kobe Steel Ltd	Production of thick steel for low temperature use having brittle fracture propagation stop characteristic at lower than-50×c
JPH0987802A (en) *	1995-09-21	1997-03-31	Kobe Steel Ltd	High tensile strength steel plate excellent in plating crack resistance and its production
JP2003003228A (en) *	2001-06-19	2003-01-08	Nippon Steel Corp	Steel material excellent in low temperature toughness and stress corrosion cracking characteristics of welded joint and method for producing the same
JP4119676B2 (en)	2002-05-01	2008-07-16	株式会社神戸製鋼所	Low yield ratio type high strength steel plate excellent in bending workability and manufacturing method thereof
KR100709600B1 (en) *	2003-06-19	2007-04-20	수미도모 메탈 인더스트리즈, 리미티드	Steel product excellent in characteristics of resistance to fatigue crack extension and method for production thereof
CN101289728B (en) *	2007-04-20	2010-05-19	宝山钢铁股份有限公司	Low-yield ratio, high heat input welding, high-strength and high ductility steel plate and method of manufacture
KR101304824B1 (en) *	2009-12-28	2013-09-05	주식회사 포스코	API Steel Plate for Line Pipe and Method for Manufacturing the API Steel Plate
KR101181247B1 (en) *	2010-04-20	2012-09-10	한국기계연구원	Giga-class ultra-high strength steel plates with excellent deformability and low-temperature toughness and the method for preparation of steel plates thereof
CN101906568B (en) *	2010-08-12	2011-12-07	中国石油天然气集团公司	High-grade large-strain pipeline steel and manufacturing method of steel pipe
KR101465088B1 (en) *	2012-08-17	2014-11-26	포항공과대학교 산학협력단	Low carbon high strength steel plates with good low temperature toughness and manufacturing method for the same

2015
- 2015-12-23 KR KR1020150185496A patent/KR101767778B1/en active Active
2016
- 2016-12-23 CA CA3009137A patent/CA3009137C/en active Active
- 2016-12-23 EP EP16879393.3A patent/EP3395987B1/en active Active
- 2016-12-23 JP JP2018532057A patent/JP6691217B2/en active Active
- 2016-12-23 US US16/063,886 patent/US20180371588A1/en not_active Abandoned
- 2016-12-23 CN CN201680075892.9A patent/CN108431274B/en active Active
- 2016-12-23 WO PCT/KR2016/015156 patent/WO2017111526A1/en active Application Filing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2009127065A (en) *	2007-11-20	2009-06-11	Nippon Steel Corp	Low yield ratio high strength steel sheet excellent in base metal low temperature toughness and HAZ low temperature toughness and its manufacturing method
WO2009072753A1 (en) *	2007-12-04	2009-06-11	Posco	High-strength steel sheet with excellent low temperature toughness and manufacturing method thereof
JP2012107310A (en) *	2010-10-28	2012-06-07	Jfe Steel Corp	Non-tempered low-yield-ratio high-tensile-strength steel plate and method for manufacturing the same
KR20130110643A (en) *	2012-03-29	2013-10-10	현대제철 주식회사	Steel and method of manufacturing the same
EP2940172A1 (en) *	2012-12-27	2015-11-04	Posco	High strength steel sheet having excellent cryogenic temperature toughness and low yield ratio properties, and method for manufacturing same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2017111526A1 *

Also Published As

Publication number	Publication date
EP3395987A1 (en)	2018-10-31
EP3395987B1 (en)	2020-04-29
US20180371588A1 (en)	2018-12-27
KR20170075933A (en)	2017-07-04
CN108431274B (en)	2021-12-07
JP6691217B2 (en)	2020-04-28
CA3009137C (en)	2021-04-13
KR101767778B1 (en)	2017-08-14
CA3009137A1 (en)	2017-06-29
JP2019504200A (en)	2019-02-14
WO2017111526A1 (en)	2017-06-29
CN108431274A (en)	2018-08-21

Publication	Publication Date	Title
EP3395987A4 (en)	2018-11-07	Low-yield ratio and high-strength steel having excellent stress corrosion cracking resistance and low temperature toughness
SI3102710T1 (en)	2018-12-31	Nickel-chromium-cobalt-titanium-aluminum alloy having good wear resistance, creep resistance, corrosion resistance and processability
EP3508603A4 (en)	2020-06-03	Steel and oil well steel pipe
EP3272899A4 (en)	2018-10-17	Low-yield-ratio high-strength-toughness thick steel plate with excellent low-temperature impact toughness and manufacturing method therefor
SI3102712T1 (en)	2018-10-30	Hardened nickel-chromium-titanium-aluminum alloy with good wear resistance, creep resistance, corrosion resistance and workability
EP3266898A4 (en)	2018-12-26	High-strength austenitic stainless steel having excellent hydrogen embrittlement resistance characteristics and method for producing same
EP3420115C0 (en)	2024-11-20	Weathering steel
EP3239333A4 (en)	2018-06-27	Steel plate having excellent toughness and resistance to hydrogen-induced cracking, and steel pipe for line pipe
EP3202938A4 (en)	2018-04-25	High-strength steel material for oil wells, and oil well pipe
EP3385401A4 (en)	2018-10-10	High-strength steel having excellent brittle crack arrestability and welding part brittle crack initiation resistance, and production method therefor
EP3276028A4 (en)	2018-08-08	Ferrite-austenite stainless steel sheet with excellent sheared end face corrosion resistance
EP3276029A4 (en)	2018-09-12	Stainless steel having excellent brazeability
EP3395989A4 (en)	2018-11-14	Austenitic steel material having excellent hydrogen-embrittlement resistance
PL3314032T3 (en)	2021-05-04	Corrosion resistant steel tube, method for producing said steel tube and its use thereof
EP3385402A4 (en)	2018-10-10	High-strength steel having excellent brittle crack arrestability and welding part brittle crack initiation resistance, and production method therefor
EP3198047A4 (en)	2018-03-07	High ductility steel alloys with mixed microconstituent structure
EP3239320A4 (en)	2018-06-27	Steel plate having excellent hydrogen-induced cracking resistance and steel pipe for line pipe
EP3282028A4 (en)	2018-11-07	Steel sheet for high strength line pipe with excellent low temperature toughness and steel pipe for high strength line pipe
EP3112484A4 (en)	2017-03-22	Ni-base alloy with excellent hot forgeability and corrosion resistance, and large structural member
HUE051934T2 (en)	2021-04-28	Stabilizer steel having high strength and excellent corrosion resistance, vehicle stabilizer employing same, and method for manufacturing same
EP3249067A4 (en)	2018-07-04	Ferritic stainless steel for exhaust system member having excellent corrosion resistance after heating
EP3561107A4 (en)	2020-01-01	Low-yield ratio steel sheet having excellent low-temperature toughness and method for manufacturing same
EP3556892A4 (en)	2019-10-23	Low alloy steel sheet having excellent strength and ductility
EP3392364A4 (en)	2018-10-24	High hardness abrasion resistant steel with excellent toughness and cutting crack resistance, and method for manufacturing same
ZA201700943B (en)	2018-12-19	Cold rolled high strength low alloy steel

Legal Events

Date	Code	Title	Description
2017-07-05	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2018-09-28	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
2018-09-28	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2018-10-31	17P	Request for examination filed	Effective date: 20180719
2018-10-31	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
2018-10-31	AX	Request for extension of the european patent	Extension state: BA ME
2018-11-07	A4	Supplementary search report drawn up and despatched	Effective date: 20181005
2018-11-07	RIC1	Information provided on ipc code assigned before grant	Ipc: C22C 38/08 20060101ALI20180929BHEP Ipc: C22C 38/04 20060101ALI20180929BHEP Ipc: C22C 38/02 20060101ALI20180929BHEP Ipc: C21D 8/02 20060101ALI20180929BHEP Ipc: C22C 38/14 20060101AFI20180929BHEP Ipc: C22C 38/06 20060101ALI20180929BHEP Ipc: C21D 6/00 20060101ALI20180929BHEP Ipc: C22C 38/12 20060101ALI20180929BHEP
2019-04-03	DAV	Request for validation of the european patent (deleted)
2019-04-03	DAX	Request for extension of the european patent (deleted)
2019-11-19	GRAP	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOSNIGR1
2019-11-19	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: GRANT OF PATENT IS INTENDED
2019-12-18	INTG	Intention to grant announced	Effective date: 20191120
2020-03-18	GRAS	Grant fee paid	Free format text: ORIGINAL CODE: EPIDOSNIGR3
2020-03-27	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
2020-03-27	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE PATENT HAS BEEN GRANTED
2020-04-29	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
2020-04-29	REG	Reference to a national code	Ref country code: GB Ref legal event code: FG4D
2020-04-30	REG	Reference to a national code	Ref country code: CH Ref legal event code: EP
2020-05-14	REG	Reference to a national code	Ref country code: DE Ref legal event code: R096 Ref document number: 602016035413 Country of ref document: DE
2020-05-15	REG	Reference to a national code	Ref country code: AT Ref legal event code: REF Ref document number: 1263397 Country of ref document: AT Kind code of ref document: T Effective date: 20200515
2020-05-27	REG	Reference to a national code	Ref country code: IE Ref legal event code: FG4D
2020-08-05	REG	Reference to a national code	Ref country code: NL Ref legal event code: FP
2020-10-12	REG	Reference to a national code	Ref country code: LT Ref legal event code: MG4D
2020-10-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	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: 20200429 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: 20200729 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: 20200831 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: 20200829 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: 20200429 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: 20200730 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: 20200429
2020-11-15	REG	Reference to a national code	Ref country code: AT Ref legal event code: MK05 Ref document number: 1263397 Country of ref document: AT Kind code of ref document: T Effective date: 20200429
2020-11-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	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: 20200429 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: 20200729 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: 20200429 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: 20200429
2020-12-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	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: 20200429
2021-01-29	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	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: 20200429 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: 20200429 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: 20200429 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: 20200429 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: 20200429 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: 20200429 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: 20200429 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: 20200429
2021-02-01	REG	Reference to a national code	Ref country code: DE Ref legal event code: R097 Ref document number: 602016035413 Country of ref document: DE
2021-02-26	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	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: 20200429 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: 20200429
2021-03-05	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
2021-03-05	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
2021-04-07	26N	No opposition filed	Effective date: 20210201
2021-05-31	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: 20200429
2021-07-30	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL
2021-08-31	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: 20200429
2021-09-03	REG	Reference to a national code	Ref country code: BE Ref legal event code: MM Effective date: 20201231
2021-10-29	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: 20201223 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201223
2021-11-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201231 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201231
2022-06-01	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: 20200429 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: 20200429 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: 20200429
2022-06-30	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: 20200429
2022-07-29	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201231
2022-09-21	REG	Reference to a national code	Ref country code: DE Ref legal event code: R081 Ref document number: 602016035413 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: 602016035413 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: 602016035413 Country of ref document: DE Owner name: POSCO HOLDINGS INC., KR Free format text: FORMER OWNER: POSCO, POHANG-SI, GYEONGSANGBUK-DO, KR
2022-11-09	REG	Reference to a national code	Ref country code: NL Ref legal event code: PD Owner name: POSCO HOLDINGS INC.; KR Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), CHANGE OF LEGAL ENTITY; FORMER OWNER NAME: POSCO Effective date: 20221026
2022-11-23	REG	Reference to a national code	Ref country code: GB Ref legal event code: 732E Free format text: REGISTERED BETWEEN 20221027 AND 20221102
2022-11-30	REG	Reference to a national code	Ref country code: NL Ref legal event code: PD Owner name: POSCO CO., LTD; KO Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), ASSIGNMENT; FORMER OWNER NAME: POSCO Effective date: 20221109
2023-04-18	REG	Reference to a national code	Ref country code: DE Ref legal event code: R081 Ref document number: 602016035413 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: 602016035413 Country of ref document: DE Owner name: POSCO CO., LTD, POHANG- SI, KR Free format text: FORMER OWNER: POSCO HOLDINGS INC., SEOUL, KR
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: 20241223 Year of fee payment: 9
2025-01-16	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 20241223 Year of fee payment: 9
2025-01-17	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 20241223 Year of fee payment: 9
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: 20241224 Year of fee payment: 9