EP3561107A4 - Tôle d'acier à faible rapport d'élasticité présentant une excellente ténacité à basse température et son procédé de fabrication - Google Patents

Tôle d'acier à faible rapport d'élasticité présentant une excellente ténacité à basse température et son procédé de fabrication Download PDF

Info

Publication number: EP3561107A4
Authority: EP; European Patent Office
Prior art keywords: manufacturing; steel sheet; low temperature; elasticity steel; temperature tenacity
Prior art date: 2016-12-21
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.): Pending

Application number

EP17882705.1A

Other languages

German (de)

English (en)

Other versions

EP3561107A1 (fr

Inventor

Woo-Gyeom KIM

Kyung-Keun Um

Ki-Hyun Bang

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.)

2016-12-21

Filing date

2017-12-08

Publication date

2020-01-01

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

2019-10-30 Publication of EP3561107A1 publication Critical patent/EP3561107A1/fr

2020-01-01 Publication of EP3561107A4 publication Critical patent/EP3561107A4/fr

Status Pending legal-status Critical Current

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
- C21D1/26—Methods of annealing
- C21D1/28—Normalising
- 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
- 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
- C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0263—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—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
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
- 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

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)

EP17882705.1A 2016-12-21 2017-12-08 Tôle d'acier à faible rapport d'élasticité présentant une excellente ténacité à basse température et son procédé de fabrication Pending EP3561107A4 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
KR1020160176126A KR101917451B1 (ko)	2016-12-21	2016-12-21	저온인성이 우수한 저항복비 강판 및 그 제조방법
PCT/KR2017/014411 WO2018117507A1 (fr)	2016-12-21	2017-12-08	Tôle d'acier à faible rapport d'élasticité présentant une excellente ténacité à basse température et son procédé de fabrication

Publications (2)

Publication Number	Publication Date
EP3561107A1 EP3561107A1 (fr)	2019-10-30
EP3561107A4 true EP3561107A4 (fr)	2020-01-01

Family

ID=62626734

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP17882705.1A Pending EP3561107A4 (fr)	2016-12-21	2017-12-08	Tôle d'acier à faible rapport d'élasticité présentant une excellente ténacité à basse température et son procédé de fabrication

Country Status (5)

Country	Link
EP (1)	EP3561107A4 (fr)
JP (1)	JP6847225B2 (fr)
KR (1)	KR101917451B1 (fr)
CN (1)	CN110100027B (fr)
WO (1)	WO2018117507A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR102200225B1 (ko) *	2019-09-03	2021-01-07	주식회사 포스코	극저온 횡팽창이 우수한 압력용기용 강판 및 그 제조 방법
WO2021149849A1 (fr)	2020-01-22	2021-07-29	주식회사 포스코	Fil-machine pour traitement thermique de graphitisation, acier graphitique et procédé de fabrication associé
KR102391651B1 (ko) *	2020-09-22	2022-04-29	주식회사 포스코	충돌성능이 우수한 열연강판 및 그 제조방법
KR102480707B1 (ko)	2020-11-12	2022-12-23	현대제철 주식회사	고인성 니켈 강재 및 그 제조방법
CN113061811A (zh) *	2021-03-17	2021-07-02	攀钢集团江油长城特殊钢有限公司	一种lng船用结构钢及其制备方法
CN119303966B (zh) *	2024-10-17	2026-04-24	山西太钢不锈钢股份有限公司	一种降低经济型双相不锈钢热卷边裂的双机架炉卷轧机控制工艺

Citations (5)

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KR100833075B1 (ko) *	2006-12-22	2008-05-27	주식회사 포스코	저온인성과 취성균열전파정지특성이 우수한 고강도저항복비 구조용 강재 및 그 제조방법
US7520943B2 (en) *	2003-06-12	2009-04-21	Jfe Steel Corporation	Steel plate and welded steel tube exhibiting low yield ratio, high strength and high toughness
JP2012031509A (ja) *	2010-06-29	2012-02-16	Jfe Steel Corp	高一様伸び特性を備えた高強度低降伏比鋼、その製造方法、および高強度低降伏比溶接鋼管
JP2013049895A (ja) *	2011-08-31	2013-03-14	Jfe Steel Corp	高一様伸び特性を備え、かつ溶接部低温靱性に優れた高強度溶接鋼管、およびその製造方法
EP2940172A1 (fr) *	2012-12-27	2015-11-04	Posco	Feuille d'acier très robuste dotée d'une excellente résistance aux températures cryogéniques et de propriétés de rapport de limite d'élasticité peu élevé, et procédé de fabrication de ladite feuille

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JPH07278656A (ja) *	1994-04-04	1995-10-24	Nippon Steel Corp	低降伏比高張力鋼の製造方法
JP2000063946A (ja) *	1998-08-21	2000-02-29	Kawasaki Steel Corp	耐震部材用低降伏点厚鋼板の製造方法
JP2002105589A (ja) *	2000-09-26	2002-04-10	National Institute For Materials Science	低降伏比高張力鋼とその製造方法
JP4445161B2 (ja) *	2001-06-19	2010-04-07	新日本製鐵株式会社	疲労強度に優れた厚鋼板の製造方法
CN101775536A (zh) *	2009-01-13	2010-07-14	宝山钢铁股份有限公司	225MPa级抗震用低屈服强度钢及其制造方法
KR101403224B1 (ko)	2011-12-28	2014-06-02	주식회사 포스코	저항복비 특성 및 저온인성이 우수한 후 강판 및 그 제조방법
CN102586680A (zh) *	2012-03-22	2012-07-18	内蒙古包钢钢联股份有限公司	一种低屈强比的高层建筑结构用钢板及其正火工艺
KR101412267B1 (ko)	2012-04-25	2014-07-02	현대제철 주식회사	강판 및 그 제조 방법
KR20150065275A (ko) *	2013-12-05	2015-06-15	두산중공업 주식회사	저온 내충격성이 향상된 주강 및 그 제조방법
CN103667909B (zh) *	2013-12-13	2016-02-03	武汉钢铁(集团)公司	一种屈强比≤0.65的移动式海洋平台用钢及生产方法
KR101799202B1 (ko) *	2016-07-01	2017-11-20	주식회사 포스코	저항복비 특성 및 저온인성이 우수한 고강도 강판 및 그 제조방법

2016
- 2016-12-21 KR KR1020160176126A patent/KR101917451B1/ko active Active
2017
- 2017-12-08 WO PCT/KR2017/014411 patent/WO2018117507A1/fr not_active Ceased
- 2017-12-08 CN CN201780079094.8A patent/CN110100027B/zh active Active
- 2017-12-08 EP EP17882705.1A patent/EP3561107A4/fr active Pending
- 2017-12-08 JP JP2019532672A patent/JP6847225B2/ja active Active

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US7520943B2 (en) *	2003-06-12	2009-04-21	Jfe Steel Corporation	Steel plate and welded steel tube exhibiting low yield ratio, high strength and high toughness
KR100833075B1 (ko) *	2006-12-22	2008-05-27	주식회사 포스코	저온인성과 취성균열전파정지특성이 우수한 고강도저항복비 구조용 강재 및 그 제조방법
JP2012031509A (ja) *	2010-06-29	2012-02-16	Jfe Steel Corp	高一様伸び特性を備えた高強度低降伏比鋼、その製造方法、および高強度低降伏比溶接鋼管
JP2013049895A (ja) *	2011-08-31	2013-03-14	Jfe Steel Corp	高一様伸び特性を備え、かつ溶接部低温靱性に優れた高強度溶接鋼管、およびその製造方法
EP2940172A1 (fr) *	2012-12-27	2015-11-04	Posco	Feuille d'acier très robuste dotée d'une excellente résistance aux températures cryogéniques et de propriétés de rapport de limite d'élasticité peu élevé, et procédé de fabrication de ladite feuille

Non-Patent Citations (1)

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Title
See also references of WO2018117507A1 *

Also Published As

Publication number	Publication date
WO2018117507A1 (fr)	2018-06-28
EP3561107A1 (fr)	2019-10-30
CN110100027A (zh)	2019-08-06
KR101917451B1 (ko)	2018-11-09
CN110100027B (zh)	2021-10-15
JP6847225B2 (ja)	2021-03-24
JP2020503435A (ja)	2020-01-30
KR20180072496A (ko)	2018-06-29

Legal Events

Date	Code	Title	Description
2018-06-30	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2019-09-27	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
2019-09-27	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2019-10-30	17P	Request for examination filed	Effective date: 20190625
2019-10-30	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
2019-10-30	AX	Request for extension of the european patent	Extension state: BA ME
2020-01-01	A4	Supplementary search report drawn up and despatched	Effective date: 20191129
2020-01-01	RIC1	Information provided on ipc code assigned before grant	Ipc: C22C 38/16 20060101ALI20191125BHEP Ipc: C21D 6/00 20060101ALI20191125BHEP Ipc: C21D 8/02 20060101ALI20191125BHEP Ipc: C22C 38/12 20060101ALI20191125BHEP Ipc: C22C 38/14 20060101ALI20191125BHEP Ipc: C22C 38/06 20060101ALI20191125BHEP Ipc: C22C 38/04 20060101AFI20191125BHEP Ipc: C21D 1/28 20060101ALI20191125BHEP Ipc: C22C 38/00 20060101ALI20191125BHEP Ipc: C22C 38/08 20060101ALI20191125BHEP Ipc: C21D 9/46 20060101ALI20191125BHEP Ipc: C22C 38/02 20060101ALI20191125BHEP
2020-04-01	DAV	Request for validation of the european patent (deleted)
2020-04-01	DAX	Request for extension of the european patent (deleted)
2021-03-25	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: EXAMINATION IS IN PROGRESS
2021-04-28	17Q	First examination report despatched	Effective date: 20210324
2022-11-23	RAP3	Party data changed (applicant data changed or rights of an application transferred)	Owner name: POSCO HOLDINGS INC.
2023-02-22	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: POSCO CO., LTD

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