KR101799202B1 - 저항복비 특성 및 저온인성이 우수한 고강도 강판 및 그 제조방법 - Google Patents

저항복비 특성 및 저온인성이 우수한 고강도 강판 및 그 제조방법 Download PDF

Info

Publication number
KR101799202B1
KR101799202B1 KR1020160083588A KR20160083588A KR101799202B1 KR 101799202 B1 KR101799202 B1 KR 101799202B1 KR 1020160083588 A KR1020160083588 A KR 1020160083588A KR 20160083588 A KR20160083588 A KR 20160083588A KR 101799202 B1 KR101799202 B1 KR 101799202B1
Authority
KR
South Korea
Prior art keywords
steel sheet
less
temperature
hot
ferrite
Prior art date
Application number
KR1020160083588A
Other languages
English (en)
Korean (ko)
Inventor
김우겸
방기현
엄경근
유승호
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 KR1020160083588A priority Critical patent/KR101799202B1/ko
Priority to JP2018566924A priority patent/JP6771047B2/ja
Priority to CN201780039727.2A priority patent/CN109328240B/zh
Priority to EP17820573.8A priority patent/EP3480332B1/fr
Priority to PCT/KR2017/006956 priority patent/WO2018004297A1/fr
Application granted granted Critical
Publication of KR101799202B1 publication Critical patent/KR101799202B1/ko

Links

Images

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
    • 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
    • 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
    • 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
    • C21D2211/001—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

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)
KR1020160083588A 2016-07-01 2016-07-01 저항복비 특성 및 저온인성이 우수한 고강도 강판 및 그 제조방법 KR101799202B1 (ko)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020160083588A KR101799202B1 (ko) 2016-07-01 2016-07-01 저항복비 특성 및 저온인성이 우수한 고강도 강판 및 그 제조방법
JP2018566924A JP6771047B2 (ja) 2016-07-01 2017-06-30 低降伏比特性及び低温靭性に優れた高強度鋼板及びその製造方法
CN201780039727.2A CN109328240B (zh) 2016-07-01 2017-06-30 低屈强比特性和低温韧性优异的高强度钢板及其制造方法
EP17820573.8A EP3480332B1 (fr) 2016-07-01 2017-06-30 Plaque d'acier à haute résistance présentant d'excellentes caractéristiques de faible coefficient d'élasticité et une ténacité à basse température et son procédé de fabrication
PCT/KR2017/006956 WO2018004297A1 (fr) 2016-07-01 2017-06-30 Plaque d'acier à haute résistance présentant d'excellentes caractéristiques de faible coefficient d'élasticité et une ténacité à basse température et son procédé de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160083588A KR101799202B1 (ko) 2016-07-01 2016-07-01 저항복비 특성 및 저온인성이 우수한 고강도 강판 및 그 제조방법

Publications (1)

Publication Number Publication Date
KR101799202B1 true KR101799202B1 (ko) 2017-11-20

Family

ID=60786060

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020160083588A KR101799202B1 (ko) 2016-07-01 2016-07-01 저항복비 특성 및 저온인성이 우수한 고강도 강판 및 그 제조방법

Country Status (5)

Country Link
EP (1) EP3480332B1 (fr)
JP (1) JP6771047B2 (fr)
KR (1) KR101799202B1 (fr)
CN (1) CN109328240B (fr)
WO (1) WO2018004297A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020111867A2 (fr) 2018-11-30 2020-06-04 주식회사 포스코 Acier structural ayant un excellent rapport à faible rendement et des propriétés de ténacité à basse température et son procédé de fabrication
KR20210053218A (ko) * 2019-11-01 2021-05-11 가부시키가이샤 고베 세이코쇼 모재와 이음매의 저온 인성이 우수한 고장력 강판 및 그의 제조 방법

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101917451B1 (ko) * 2016-12-21 2018-11-09 주식회사 포스코 저온인성이 우수한 저항복비 강판 및 그 제조방법
CN110373524B (zh) * 2019-07-16 2021-05-04 河钢股份有限公司承德分公司 一种90公斤级焊丝用钢热处理软化工艺
JP7338811B1 (ja) * 2022-04-20 2023-09-05 Ｊｆｅスチール株式会社 鋼板およびその製造方法
WO2023203815A1 (fr) * 2022-04-20 2023-10-26 Ｊｆｅスチール株式会社 Tôle en acier, et procédé de fabrication de celle-ci

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007031796A (ja) 2005-07-28 2007-02-08 Kobe Steel Ltd 低降伏比高張力鋼板

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6057490B2 (ja) * 1979-02-28 1985-12-16 新日本製鐵株式会社 低降伏比の高張力鋼板の製造方法
JPH07278656A (ja) * 1994-04-04 1995-10-24 Nippon Steel Corp 低降伏比高張力鋼の製造方法
JPH09256037A (ja) * 1996-03-22 1997-09-30 Nippon Steel Corp 応力除去焼鈍処理用の厚肉高張力鋼板の製造方法
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
JP5768603B2 (ja) * 2011-08-31 2015-08-26 Ｊｆｅスチール株式会社 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
KR101403224B1 (ko) 2011-12-28 2014-06-02 주식회사 포스코 저항복비 특성 및 저온인성이 우수한 후 강판 및 그 제조방법
JP5761080B2 (ja) * 2012-03-01 2015-08-12 新日鐵住金株式会社 伸びと穴拡げ性と疲労特性に優れた高強度熱延鋼板及びその製造方法
KR101482359B1 (ko) * 2012-12-27 2015-01-13 주식회사 포스코 극저온 인성이 우수하고 저항복비 특성을 갖는 고강도 강판 및 그의 제조방법
KR20140118313A (ko) * 2013-03-28 2014-10-08 현대제철 주식회사 열연강판 및 그 제조 방법
CN103320692B (zh) * 2013-06-19 2016-07-06 宝山钢铁股份有限公司 超高韧性、优良焊接性ht550钢板及其制造方法
JP5728115B1 (ja) * 2013-09-27 2015-06-03 株式会社神戸製鋼所 延性および低温靭性に優れた高強度鋼板、並びにその製造方法
CN105420605A (zh) * 2015-11-30 2016-03-23 钢铁研究总院 一种超低屈强比冷轧双相钢及其制造方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007031796A (ja) 2005-07-28 2007-02-08 Kobe Steel Ltd 低降伏比高張力鋼板

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020111867A2 (fr) 2018-11-30 2020-06-04 주식회사 포스코 Acier structural ayant un excellent rapport à faible rendement et des propriétés de ténacité à basse température et son procédé de fabrication
KR20200065480A (ko) 2018-11-30 2020-06-09 주식회사 포스코 우수한 저항복비 및 저온인성 특성을 가지는 구조용강 및 그 제조방법
KR20210053218A (ko) * 2019-11-01 2021-05-11 가부시키가이샤 고베 세이코쇼 모재와 이음매의 저온 인성이 우수한 고장력 강판 및 그의 제조 방법
KR102467116B1 (ko) 2019-11-01 2022-11-14 가부시키가이샤 고베 세이코쇼 모재와 이음매의 저온 인성이 우수한 고장력 강판 및 그의 제조 방법

Also Published As

Publication number Publication date
JP2019524987A (ja) 2019-09-05
EP3480332B1 (fr) 2021-10-13
EP3480332A4 (fr) 2019-06-26
JP6771047B2 (ja) 2020-10-21
WO2018004297A1 (fr) 2018-01-04
CN109328240B (zh) 2022-05-17
CN109328240A (zh) 2019-02-12
EP3480332A1 (fr) 2019-05-08

Similar Documents

Publication Publication Date Title
KR101799202B1 (ko) 저항복비 특성 및 저온인성이 우수한 고강도 강판 및 그 제조방법
KR100851189B1 (ko) 저온인성이 우수한 초고강도 라인파이프용 강판 및 그제조방법
KR100957970B1 (ko) 후물 고강도 고인성 강판 및 그 제조방법
KR101205144B1 (ko) 건축구조용 ｈ형강 및 그 제조방법
KR101917453B1 (ko) 극저온 충격인성이 우수한 후강판 및 이의 제조방법
KR101439685B1 (ko) 균일연신율 및 저온파괴인성이 우수한 라인파이프용 강판 및 그의 제조방법
KR101736611B1 (ko) 취성균열전파 저항성 및 용접부 취성균열개시 저항성이 우수한 고강도 강재 및 그 제조방법
KR100951296B1 (ko) 저온인성이 우수한 고강도 라인파이프용 강판 및 그제조방법
JP7221475B6 (ja) 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
KR101917451B1 (ko) 저온인성이 우수한 저항복비 강판 및 그 제조방법
KR101585724B1 (ko) 중심부 저온 파괴전파 저항성 및 항복비 특성이 동시에 우수한 후물 라인파이프 강재 및 그 제조방법
KR100797326B1 (ko) Ｐｗｈｔ 물성 보증용 심해 라이저 파이프 강재 및 그제조방법
KR100711371B1 (ko) 극저온 인성이 우수한 라인파이프용 후강판 및 그 제조방법
KR101465088B1 (ko) 저온 인성이 우수한 저탄소 고강도 강판 및 그 제조방법
KR20200065480A (ko) 우수한 저항복비 및 저온인성 특성을 가지는 구조용강 및 그 제조방법
KR101518600B1 (ko) 충격특성이 우수한 초고강도 열연강판 및 그 제조방법
KR101257161B1 (ko) 열연강판, 그 제조 방법 및 이를 이용한 고강도 강관 제조 방법
KR101143029B1 (ko) 고강도, 고인성 및 고변형능 라인파이프용 강판 및 그 제조방법
KR101568504B1 (ko) Ｐｗｈｔ 후 강도 및 인성이 우수한 압력용기용 강판 및 그 제조방법
KR101406527B1 (ko) 대입열 용접열영향부 인성이 우수한 고강도 극후물 강판 및 이의 제조방법
KR102484998B1 (ko) 연성이 우수한 고강도 강판 및 그 제조방법
KR101505290B1 (ko) 라인파이프용 강판 및 그 제조 방법
KR101507943B1 (ko) 라인파이프 강재 및 그 제조방법
KR102200225B1 (ko) 극저온 횡팽창이 우수한 압력용기용 강판 및 그 제조 방법
KR101069995B1 (ko) 고강도 라인파이프용 강판 및 그 제조방법

Legal Events

Date Code Title Description
E701 Decision to grant or registration of patent right
GRNT Written decision to grant