Nothing Special   »   [go: up one dir, main page]

WO2020111856A3 - 연성 및 저온 인성이 우수한 고강도 강재 및 이의 제조방법 - Google Patents

연성 및 저온 인성이 우수한 고강도 강재 및 이의 제조방법 Download PDF

Info

Publication number
WO2020111856A3
WO2020111856A3 PCT/KR2019/016692 KR2019016692W WO2020111856A3 WO 2020111856 A3 WO2020111856 A3 WO 2020111856A3 KR 2019016692 W KR2019016692 W KR 2019016692W WO 2020111856 A3 WO2020111856 A3 WO 2020111856A3
Authority
WO
WIPO (PCT)
Prior art keywords
steel sheet
low
temperature toughness
manufacturing
strength steel
Prior art date
Application number
PCT/KR2019/016692
Other languages
English (en)
French (fr)
Other versions
WO2020111856A2 (ko
Inventor
김상호
방기현
Original Assignee
주식회사 포스코
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.)
Filing date
Publication date
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to US17/297,740 priority Critical patent/US20220042132A1/en
Priority to EP19891370.9A priority patent/EP3889296B1/en
Priority to CN201980077747.8A priority patent/CN113166885B/zh
Priority to JP2021530170A priority patent/JP7221475B6/ja
Publication of WO2020111856A2 publication Critical patent/WO2020111856A2/ko
Publication of WO2020111856A3 publication Critical patent/WO2020111856A3/ko

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
    • 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
    • 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
    • C21D1/02—Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
    • 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
    • C21D8/0247—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
    • 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
    • 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
    • C21D2211/009—Pearlite

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)

Abstract

본 발명은 선박 또는 강 구조물 등에 적합한 구조용 강재에 관한 것으로서, 보다 상세하게는 연성 및 저온 인성이 우수한 고강도 강재 및 이의 제조방법에 관한 것이다.
PCT/KR2019/016692 2018-11-29 2019-11-29 연성 및 저온 인성이 우수한 고강도 강재 및 이의 제조방법 WO2020111856A2 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US17/297,740 US20220042132A1 (en) 2018-11-29 2019-11-29 High-strength steel sheet having excellent ductility and low-temperature toughness and method for manufacturing thereof
EP19891370.9A EP3889296B1 (en) 2018-11-29 2019-11-29 High-strength steel sheet having excellent ductility and low-temperature toughness and method for manufacturing thereof
CN201980077747.8A CN113166885B (zh) 2018-11-29 2019-11-29 延展性及低温韧性优秀的高强度钢材及其制造方法
JP2021530170A JP7221475B6 (ja) 2018-11-29 2019-11-29 延性及び低温靭性に優れた高強度鋼材及びその製造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2018-0150707 2018-11-29
KR1020180150707A KR102164112B1 (ko) 2018-11-29 2018-11-29 연성 및 저온 인성이 우수한 고강도 강재 및 이의 제조방법

Publications (2)

Publication Number Publication Date
WO2020111856A2 WO2020111856A2 (ko) 2020-06-04
WO2020111856A3 true WO2020111856A3 (ko) 2020-08-13

Family

ID=70852022

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2019/016692 WO2020111856A2 (ko) 2018-11-29 2019-11-29 연성 및 저온 인성이 우수한 고강도 강재 및 이의 제조방법

Country Status (6)

Country Link
US (1) US20220042132A1 (ko)
EP (1) EP3889296B1 (ko)
JP (1) JP7221475B6 (ko)
KR (1) KR102164112B1 (ko)
CN (1) CN113166885B (ko)
WO (1) WO2020111856A2 (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102484998B1 (ko) * 2020-12-11 2023-01-05 주식회사 포스코 연성이 우수한 고강도 강판 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
JPWO2023162190A1 (ko) * 2022-02-28 2023-08-31
KR20240098514A (ko) * 2022-12-21 2024-06-28 주식회사 포스코 강도와 인성이 우수한 강판 및 그 제조방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS569314B2 (ko) * 1978-12-26 1981-02-28
JP3849244B2 (ja) * 1997-09-16 2006-11-22 Ｊｆｅスチール株式会社 繰返し大変形下での延性き裂進展抵抗の優れた鋼材及びその製造方法
JP2008179878A (ja) * 2006-12-28 2008-08-07 Jfe Steel Kk 脆性亀裂伝播停止特性に優れた高張力厚鋼板およびその製造方法
KR20090069871A (ko) * 2007-12-26 2009-07-01 주식회사 포스코 용접열영향부의 저온인성과 인장강도가 우수한 고강도구조용 강재 및 그 제조방법
JP4728710B2 (ja) * 2005-07-01 2011-07-20 新日本製鐵株式会社 加工性に優れる熱延鋼板およびその製造方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62130216A (ja) * 1985-12-02 1987-06-12 Kobe Steel Ltd 加速冷却型厚肉高靭性高張力鋼板の製造方法
JP3434445B2 (ja) * 1997-12-26 2003-08-11 新日本製鐵株式会社 耐衝撃吸収能に優れた船体用鋼板
JP3848091B2 (ja) 2001-02-28 2006-11-22 株式会社神戸製鋼所 歪時効による靭性劣化の少ない鋼板
US20070193665A1 (en) * 2004-03-11 2007-08-23 Hitoshi Furuya Steel plate excellent in machineability and in toughness and weldability and method of production of the same
JP4626394B2 (ja) 2005-05-18 2011-02-09 Ｊｆｅスチール株式会社 低温靱性に優れた厚鋼板の製造方法
EP1731053B1 (fr) 2005-06-06 2007-07-04 The Swatch Group Management Services AG Bracelet articulé non extensible
JP4476923B2 (ja) * 2005-12-15 2010-06-09 株式会社神戸製鋼所 衝突吸収性と母材靭性に優れた鋼板
WO2009072753A1 (en) 2007-12-04 2009-06-11 Posco High-strength steel sheet with excellent low temperature toughness and manufacturing method thereof
CN103249854B (zh) * 2011-08-23 2014-11-05 新日铁住金株式会社 厚壁电阻焊钢管及其制造方法
JP5953952B2 (ja) 2011-11-30 2016-07-20 Ｊｆｅスチール株式会社 耐衝突性に優れた鋼材およびその製造方法
KR101344610B1 (ko) * 2012-02-28 2013-12-26 현대제철 주식회사 강판 및 그 제조 방법
JP5516659B2 (ja) * 2012-06-28 2014-06-11 Ｊｆｅスチール株式会社 中温域の長期耐軟化性に優れた高強度電縫鋼管及びその製造方法
KR101482359B1 (ko) * 2012-12-27 2015-01-13 주식회사 포스코 극저온 인성이 우수하고 저항복비 특성을 갖는 고강도 강판 및 그의 제조방법
KR101536387B1 (ko) * 2012-12-27 2015-07-13 주식회사 포스코 극저온 인성이 우수하고 저항복비 특성을 가지는 고강도 강판 및 그의 제조방법
JP5994819B2 (ja) 2014-05-30 2016-09-21 新日鐵住金株式会社 耐衝撃性に優れた鋼板及びその製造方法
JP6676973B2 (ja) * 2016-01-13 2020-04-08 日本製鉄株式会社 熱延鋼板およびその製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS569314B2 (ko) * 1978-12-26 1981-02-28
JP3849244B2 (ja) * 1997-09-16 2006-11-22 Ｊｆｅスチール株式会社 繰返し大変形下での延性き裂進展抵抗の優れた鋼材及びその製造方法
JP4728710B2 (ja) * 2005-07-01 2011-07-20 新日本製鐵株式会社 加工性に優れる熱延鋼板およびその製造方法
JP2008179878A (ja) * 2006-12-28 2008-08-07 Jfe Steel Kk 脆性亀裂伝播停止特性に優れた高張力厚鋼板およびその製造方法
KR20090069871A (ko) * 2007-12-26 2009-07-01 주식회사 포스코 용접열영향부의 저온인성과 인장강도가 우수한 고강도구조용 강재 및 그 제조방법

Also Published As

Publication number Publication date
EP3889296A4 (en) 2021-11-03
EP3889296B1 (en) 2023-10-18
KR102164112B1 (ko) 2020-10-12
CN113166885B (zh) 2022-10-14
CN113166885A (zh) 2021-07-23
EP3889296A2 (en) 2021-10-06
US20220042132A1 (en) 2022-02-10
JP2022510212A (ja) 2022-01-26
EP3889296C0 (en) 2023-10-18
WO2020111856A2 (ko) 2020-06-04
KR20200064511A (ko) 2020-06-08
JP7221475B2 (ja) 2023-02-14
JP7221475B6 (ja) 2023-02-28

Similar Documents

Publication Publication Date Title
WO2020111856A3 (ko) 연성 및 저온 인성이 우수한 고강도 강재 및 이의 제조방법
EP3611287A4 (en) WIDE AND HEAVY S355G10 + M STEEL SHEET WITH LOW TEMPERATURE TOUGH FOR OCEAN ENGINEERING AND METHOD FOR THE PRODUCTION THEREOF
ZA202003349B (en) Steel sheet having excellent toughness, ductility and strength, and manufacturing method thereof
CA3025617C (en) Method for producing a twip steel sheet having an austenitic microstructure
EP3279363A4 (en) HIGH-STRENGTH COLD-ROLLED STEEL SHEET HAVING EXCELLENT WORKABILITY AND COLLISION CHARACTERISTICS AND HAVING TENSILE STRENGTH OF 980 MPa OR MORE, AND METHOD FOR PRODUCING SAME
EP3279362A4 (en) HIGH-STRENGTH COLD-ROLLED STEEL SHEET HAVING EXCELLENT WORKABILITY AND COLLISION CHARACTERISTICS AND HAVING TENSILE STRENGTH OF 980 MPa OR MORE, AND METHOD FOR PRODUCING SAME
MX2017015333A (es) Lamina de acero rolada en frio de alta resistencia, lamina de acero recubierta de alta resistencia, metodo para fabricar lamina de acero rolada en frio de alta resistencia, y metodo para fabricar lamina de acero recubierta de alta resistencia.
EP3533894A4 (en) COLD-ROLLED HIGH-STRENGTH STEEL SHEET HAVING A STRENGTH OF 1500 MPA OR MORE AND EXCELLENT FORMABILITY, AND MANUFACTURING METHOD THEREOF
EP3754043A4 (en) HIGH STRENGTH GALVANIZED STEEL SHEET, HIGH STRENGTH ELEMENT AND MANUFACTURING PROCESS FOR IT
MX2020006445A (es) Lamina de acero de alta resistencia que tiene excelentes propiedades de impacto y formabilidad y metodo para manufacturarla.
MX2017001105A (es) Lamina de acero galvanizada de alta resistencia y metodo de produccion de la misma.
MX2019001147A (es) Lamina de acerro de alta resistencia y metodo para producir la misma.
EP3712291A4 (en) LOW TEMPERATURE STEEL PLATE WITH EXCELLENT IMPACT RESISTANCE AND METHOD OF MANUFACTURING ITEM
EP3730656A4 (en) WEAR RESISTANT STEEL WITH EXCELLENT HARDNESS AND IMPACT RESISTANCE AND PROCESS FOR MANUFACTURING THEREOF
MX2018011688A (es) Lamina de acero y lamina de acero enchapada, metodo para producir lamina de acero laminada en caliente, metodo para producir lamina de acero de dureza completa laminada en frio, metodo para producir lamina termicamente tratada, metodo para producir lamina de acero, y metodo para producir lamina de acero enchapada.
EP3705592A4 (en) HIGH STRENGTH COLD ROLLED SHEET, HIGH STRENGTH PLATED STEEL SHEET, AND THEIR PRODUCTION PROCESSES
MX2015013765A (es) Hoja de acero inoxidalbe ferritico, laminada en caliente, proceso para la produccion de la misma y fleje de acero.
EP3896184A4 (en) HIGH STRENGTH STEEL SHEET HAVING EXCELLENT MOLDABILITY AND IMPACT RESISTANCE, AND METHOD FOR MANUFACTURING HIGH STRENGTH STEEL SHEET HAVING EXCELLENT MOLDABILITY AND IMPACT RESISTANCE
MX2019003292A (es) Método para producir un acero de alta resistencia laminado en caliente con conformabilidad del reborde elástico y rendimiento de fatiga del borde excelentes.
EP4006180A4 (en) HIGH STRENGTH STEEL SHEET FOR ACID RESISTANT PIPE, METHOD OF MANUFACTURING THEREOF, AND HIGH STRENGTH STEEL PIPE USING HIGH STRENGTH STEEL SHEET FOR ACID RESISTANT PIPE
WO2020111874A3 (ko) 용접열영향부 인성이 우수한 강재 및 이의 제조방법
EP3889304C0 (en) HIGH STRENGTH THICK STEEL PLATE FOR LINE PIPE WITH EXCELLENT LOW TEMPERATURE TOUGHNESS AND DUCTILITY AS WELL AS LOW YIELD RATIO AND PROCESS THEREOF
EP3828299A4 (en) HIGHLY RESISTANT AND HIGH BENDABLE ELECTROZINGED STEEL SHEET, AND METHOD FOR MANUFACTURING THE SAME
MX2019001148A (es) Lamina de acero de alta resistencia y metodo para su fabricacion.
EP3409808A4 (en) High-yield ratio high-strength galvanized steel sheet, and method for producing same

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19891370

Country of ref document: EP

Kind code of ref document: A2

ENP Entry into the national phase

Ref document number: 2021530170

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2019891370

Country of ref document: EP

Effective date: 20210629