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

EP3395987B1 (en

EP3395987A1 (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

Links

229910000831 Steel Inorganic materials 0.000 title 1
230000007797 corrosion Effects 0.000 title 1
238000005260 corrosion Methods 0.000 title 1
238000005336 cracking Methods 0.000 title 1
239000010959 steel Substances 0.000 title 1

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)
Materials Engineering (AREA)
Mechanical 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	Low-yield-ratio stress corrosion cracking resistant high-strength steel 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
WO2023203702A1 (en) *	2022-04-20	2023-10-26	Ｊｆｅスチール株式会社	Steel sheet and method for manufacturing same
JP7364137B1 (en)	2022-04-20	2023-10-18	Ｊｆｅスチール株式会社	Steel plate and its manufacturing method
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
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

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-tensile steel plate excellent in low-temperature toughness of base metal and low-temperature toughness of haz, and method for manufacturing the same
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

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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 having excellent low temperature toughness in welded joint and stress corrosion cracking property and production method therefor
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 IP Right Grant
2016
- 2016-12-23 WO PCT/KR2016/015156 patent/WO2017111526A1/en active Application Filing
- 2016-12-23 CA CA3009137A patent/CA3009137C/en active Active
- 2016-12-23 JP JP2018532057A patent/JP6691217B2/en active Active
- 2016-12-23 EP EP16879393.3A patent/EP3395987B1/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

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-tensile steel plate excellent in low-temperature toughness of base metal and low-temperature toughness of haz, and method for manufacturing the same
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)

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Title
See also references of WO2017111526A1 *

Also Published As

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

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