KR102255828B1 - 구조용 강재 및 그 제조방법 - Google Patents

구조용 강재 및 그 제조방법 Download PDF

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Publication number
KR102255828B1
KR102255828B1 KR1020190167594A KR20190167594A KR102255828B1 KR 102255828 B1 KR102255828 B1 KR 102255828B1 KR 1020190167594 A KR1020190167594 A KR 1020190167594A KR 20190167594 A KR20190167594 A KR 20190167594A KR 102255828 B1 KR102255828 B1 KR 102255828B1
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KR
South Korea
Prior art keywords
less
ferrite
present
slab
content
Prior art date
Application number
KR1020190167594A
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English (en)
Korean (ko)
Inventor
엄경근
문해순
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.)
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Publication date
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to KR1020190167594A priority Critical patent/KR102255828B1/ko
Priority to PCT/KR2020/018361 priority patent/WO2021125748A1/fr
Priority to CN202080083391.1A priority patent/CN114729434A/zh
Priority to JP2022536892A priority patent/JP7395750B2/ja
Priority to EP20904167.2A priority patent/EP4079906A1/fr
Application granted granted Critical
Publication of KR102255828B1 publication Critical patent/KR102255828B1/ko

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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
    • 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
    • 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
    • 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
    • C21D8/0273—Final recrystallisation annealing
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/12—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
    • C21D2211/005—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)
KR1020190167594A 2019-12-16 2019-12-16 구조용 강재 및 그 제조방법 KR102255828B1 (ko)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020190167594A KR102255828B1 (ko) 2019-12-16 2019-12-16 구조용 강재 및 그 제조방법
PCT/KR2020/018361 WO2021125748A1 (fr) 2019-12-16 2020-12-15 Matériau d'acier structural et procédé de fabrication d'un tel matériau
CN202080083391.1A CN114729434A (zh) 2019-12-16 2020-12-15 结构用钢材及其制造方法
JP2022536892A JP7395750B2 (ja) 2019-12-16 2020-12-15 構造用鋼材及びその製造方法
EP20904167.2A EP4079906A1 (fr) 2019-12-16 2020-12-15 Matériau d'acier structural et procédé de fabrication d'un tel matériau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020190167594A KR102255828B1 (ko) 2019-12-16 2019-12-16 구조용 강재 및 그 제조방법

Publications (1)

Publication Number Publication Date
KR102255828B1 true KR102255828B1 (ko) 2021-05-25

Family

ID=76145203

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020190167594A KR102255828B1 (ko) 2019-12-16 2019-12-16 구조용 강재 및 그 제조방법

Country Status (5)

Country Link
EP (1) EP4079906A1 (fr)
JP (1) JP7395750B2 (fr)
KR (1) KR102255828B1 (fr)
CN (1) CN114729434A (fr)
WO (1) WO2021125748A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100833069B1 (ko) * 2006-12-13 2008-05-27 주식회사 포스코 내ｈｉｃ특성 및 ｈａｚ 인성이 우수한 인장강도 500㎫급압력용기용 강판 및 그 제조 방법
KR20120087686A (ko) 2011-01-28 2012-08-07 현대제철 주식회사 저온 충격 특성이 우수한 구조용 강재 및 제조 방법
KR20140099945A (ko) * 2012-01-26 2014-08-13 신닛테츠스미킨 카부시키카이샤 열처리 변형이 작은 표면 경화 강재
KR20180073007A (ko) * 2016-12-22 2018-07-02 주식회사 포스코 강도 및 저온 충격인성이 우수한 강재 및 그 제조방법
JP2019504210A (ja) * 2015-12-23 2019-02-14 ポスコＰｏｓｃｏ 耐水素誘起割れ（ｈｉｃ）性に優れた圧力容器用鋼材及びその製造方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4267367B2 (ja) * 2002-06-19 2009-05-27 新日本製鐵株式会社 原油油槽用鋼およびその製造方法、原油油槽およびその防食方法
JP5522084B2 (ja) * 2011-02-24 2014-06-18 新日鐵住金株式会社 厚鋼板の製造方法
JP5304924B2 (ja) * 2011-12-27 2013-10-02 Ｊｆｅスチール株式会社 脆性亀裂伝播停止特性に優れた構造用高強度厚鋼板およびその製造方法
JP6007968B2 (ja) * 2014-12-26 2016-10-19 新日鐵住金株式会社 高強度高延性厚板鋼板とその製造方法
JP6447426B2 (ja) * 2015-09-04 2019-01-09 Ｊｆｅスチール株式会社 極厚鋼板及びその製造方法
CN109628712A (zh) * 2019-01-17 2019-04-16 河北敬业中厚板有限公司 一种压力容器钢板的热处理工艺

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100833069B1 (ko) * 2006-12-13 2008-05-27 주식회사 포스코 내ｈｉｃ특성 및 ｈａｚ 인성이 우수한 인장강도 500㎫급압력용기용 강판 및 그 제조 방법
KR20120087686A (ko) 2011-01-28 2012-08-07 현대제철 주식회사 저온 충격 특성이 우수한 구조용 강재 및 제조 방법
KR20140099945A (ko) * 2012-01-26 2014-08-13 신닛테츠스미킨 카부시키카이샤 열처리 변형이 작은 표면 경화 강재
JP2019504210A (ja) * 2015-12-23 2019-02-14 ポスコＰｏｓｃｏ 耐水素誘起割れ（ｈｉｃ）性に優れた圧力容器用鋼材及びその製造方法
KR20180073007A (ko) * 2016-12-22 2018-07-02 주식회사 포스코 강도 및 저온 충격인성이 우수한 강재 및 그 제조방법

Also Published As

Publication number Publication date
EP4079906A1 (fr) 2022-10-26
JP2023507946A (ja) 2023-02-28
WO2021125748A1 (fr) 2021-06-24
JP7395750B2 (ja) 2023-12-11
CN114729434A (zh) 2022-07-08

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