WO2016105002A8 - 표면 가공 품질이 우수한 저온용 강판 및 그 제조방법 - Google Patents

표면 가공 품질이 우수한 저온용 강판 및 그 제조방법 Download PDF

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Publication number
WO2016105002A8
WO2016105002A8 PCT/KR2015/013554 KR2015013554W WO2016105002A8 WO 2016105002 A8 WO2016105002 A8 WO 2016105002A8 KR 2015013554 W KR2015013554 W KR 2015013554W WO 2016105002 A8 WO2016105002 A8 WO 2016105002A8
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WO
WIPO (PCT)
Prior art keywords
low
steel sheet
temperature service
temperature
excellent surface
Prior art date
Application number
PCT/KR2015/013554
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English (en)
French (fr)
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WO2016105002A1 (ko
Inventor
이순기
서인식
김용진
강상덕
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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Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to JP2017531487A priority Critical patent/JP6810691B2/ja
Priority to US15/535,595 priority patent/US20170362675A1/en
Priority to CA2970151A priority patent/CA2970151C/en
Priority to EP15873529.0A priority patent/EP3239328B1/en
Priority to CN201580070966.5A priority patent/CN107109602B/zh
Publication of WO2016105002A1 publication Critical patent/WO2016105002A1/ko
Publication of WO2016105002A8 publication Critical patent/WO2016105002A8/ko

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    • 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
    • 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
    • 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 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
    • 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
    • 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
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
    • 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
    • C21D2211/004—Dispersions; Precipitations

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  • 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)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

본 발명은 액화가스 저장 탱크 및 수송설비 등의 저온에서부터 실온까지 광범위한 온도에 사용할 수 있는 저온용 강판에 관한 것으로서, 인장 등의 가공 공정 후에도 표면 가공 품질이 우수한 저온용 강판 및 그 제조 방법을 제공한다. 본 발명의 일 측면은 망간(Mn): 15~35중량%, 탄소(C): 23.6C+Mn≥28 및 33.5C-Mn≤23을 만족하는 범위, 구리(Cu): 5중량% 이하 (0중량% 제외), 크롬(Cr): 28.5C+4.4Cr≤57 (0중량% 제외)의 조건을 만족하는 범위, Ti(티타늄): 0.01~0.5중량%, N(질소): 0.003~0.2중량%, 나머지 철(Fe) 및 기타 불가피한 불순물을 포함하고, 상기 Ti와 상기 N이 하기 관계식 1을 만족하는 표면가공 품질이 우수한 저온용 강판에 관한 것이다. [관계식 1] 1.0 ≤ Ti/N ≤ 4.5 (단, 각 수식의 Mn, C, Cr, Ti 및 N은 각 성분함량의 중량%를 의미함)
PCT/KR2015/013554 2014-12-24 2015-12-11 표면 가공 품질이 우수한 저온용 강판 및 그 제조방법 WO2016105002A1 (ko)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2017531487A JP6810691B2 (ja) 2014-12-24 2015-12-11 表面加工品質に優れた低温用鋼板、及びその製造方法
US15/535,595 US20170362675A1 (en) 2014-12-24 2015-12-11 Steel for low-temperature service having excellent surface processing quality and method for manufacturing same
CA2970151A CA2970151C (en) 2014-12-24 2015-12-11 Steel sheet for low-temperature service having excellent surface processing quality and method for manufacturing same
EP15873529.0A EP3239328B1 (en) 2014-12-24 2015-12-11 Steel sheet for low-temperature service having excellent surface processing quality and method for manufacturing same
CN201580070966.5A CN107109602B (zh) 2014-12-24 2015-12-11 表面加工质量优异的低温用钢板及其制造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2014-0189137 2014-12-24
KR1020140189137A KR101665821B1 (ko) 2014-12-24 2014-12-24 표면 가공 품질이 우수한 저온용 강판 및 그 제조방법

Publications (2)

Publication Number Publication Date
WO2016105002A1 WO2016105002A1 (ko) 2016-06-30
WO2016105002A8 true WO2016105002A8 (ko) 2016-12-15

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PCT/KR2015/013554 WO2016105002A1 (ko) 2014-12-24 2015-12-11 표면 가공 품질이 우수한 저온용 강판 및 그 제조방법

Country Status (7)

Country Link
US (1) US20170362675A1 (ko)
EP (1) EP3239328B1 (ko)
JP (2) JP6810691B2 (ko)
KR (1) KR101665821B1 (ko)
CN (1) CN107109602B (ko)
CA (1) CA2970151C (ko)
WO (1) WO2016105002A1 (ko)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101940874B1 (ko) * 2016-12-22 2019-01-21 주식회사 포스코 저온인성 및 항복강도가 우수한 고 망간 강 및 제조 방법
KR102331032B1 (ko) * 2017-04-26 2021-11-24 제이에프이 스틸 가부시키가이샤 고Mn강 및 그의 제조 방법
CN107190201B (zh) * 2017-07-17 2019-03-26 武汉钢铁有限公司 液化石油气运输船用钢及制造方法
EP3679594A4 (en) 2017-09-07 2021-06-02 Monash University CAPACITIVE ENERGY STORAGE DEVICE AND ITS PRODUCTION PROCESS
KR102109270B1 (ko) * 2017-10-18 2020-05-12 주식회사 포스코 표면품질이 우수한 저온용 고 망간강재 및 제조방법
KR102031455B1 (ko) * 2017-12-26 2019-10-11 주식회사 포스코 저온인성이 우수한 열연강판, 강관 및 그 제조방법
US11326237B2 (en) 2018-03-29 2022-05-10 Nippon Steel Corporation Austenitic wear-resistant steel plate
KR102255827B1 (ko) * 2018-10-25 2021-05-26 주식회사 포스코 표면품질이 우수한 극저온용 오스테나이트계 고망간 강재 및 그 제조방법

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Also Published As

Publication number Publication date
JP2020002465A (ja) 2020-01-09
US20170362675A1 (en) 2017-12-21
JP6764510B2 (ja) 2020-09-30
CN107109602A (zh) 2017-08-29
EP3239328B1 (en) 2021-11-17
KR101665821B1 (ko) 2016-10-13
EP3239328A1 (en) 2017-11-01
EP3239328A4 (en) 2017-12-13
JP6810691B2 (ja) 2021-01-06
KR20160078853A (ko) 2016-07-05
CN107109602B (zh) 2022-02-25
CA2970151C (en) 2021-01-19
CA2970151A1 (en) 2016-06-30
WO2016105002A1 (ko) 2016-06-30
JP2018503742A (ja) 2018-02-08

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