EP3872216A4 - Cryogenic austenitic high-manganese steel having excellent shape, and manufacturing method therefor - Google Patents

Cryogenic austenitic high-manganese steel having excellent shape, and manufacturing method therefor Download PDF

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Publication number
EP3872216A4
EP3872216A4 EP19876795.6A EP19876795A EP3872216A4 EP 3872216 A4 EP3872216 A4 EP 3872216A4 EP 19876795 A EP19876795 A EP 19876795A EP 3872216 A4 EP3872216 A4 EP 3872216A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing
method therefor
manganese steel
excellent shape
austenitic high
Prior art date
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
EP19876795.6A
Other languages
German (de)
French (fr)
Other versions
EP3872216A1 (en
Inventor
Un-Hae LEE
Bo-Sung Kim
Jeong-Hun SEOK
Dong-Ho Lee
Sung-Kyu Kim
Sang-Deok Kang
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.)
Filing date
Publication date
Application filed by Posco Co Ltd filed Critical Posco Co Ltd
Priority claimed from PCT/KR2019/014193 external-priority patent/WO2020085861A1/en
Publication of EP3872216A1 publication Critical patent/EP3872216A1/en
Publication of EP3872216A4 publication Critical patent/EP3872216A4/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • C21D6/00—Heat treatment 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • 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
    • 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
    • C21D8/0231—Warm 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
    • C22C38/02—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
    • C22C38/06—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
    • C22C38/18—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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
EP19876795.6A 2018-10-25 2019-10-25 Cryogenic austenitic high-manganese steel having excellent shape, and manufacturing method therefor Pending EP3872216A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR20180128504 2018-10-25
KR1020190118925A KR102255826B1 (en) 2018-10-25 2019-09-26 Ultra-low temperature austenitic high manganese steel having excellent shape and manufacturing method for the same
PCT/KR2019/014193 WO2020085861A1 (en) 2018-10-25 2019-10-25 Cryogenic austenitic high-manganese steel having excellent shape, and manufacturing method therefor

Publications (2)

Publication Number Publication Date
EP3872216A1 EP3872216A1 (en) 2021-09-01
EP3872216A4 true EP3872216A4 (en) 2021-09-01

Family

ID=70733247

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19876795.6A Pending EP3872216A4 (en) 2018-10-25 2019-10-25 Cryogenic austenitic high-manganese steel having excellent shape, and manufacturing method therefor
EP19875536.5A Pending EP3872210A1 (en) 2018-10-25 2019-10-25 Cryogenic austenitic high-manganese steel having excellent shape, and manufacturing method therefor

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP19875536.5A Pending EP3872210A1 (en) 2018-10-25 2019-10-25 Cryogenic austenitic high-manganese steel having excellent shape, and manufacturing method therefor

Country Status (3)

Country Link
EP (2) EP3872216A4 (en)
KR (2) KR102255826B1 (en)
CN (2) CN112912529A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022168686A1 (en) * 2021-02-08 2022-08-11 Ｊｆｅスチール株式会社 Steel material and method for producing same, and tank and method for producing same
CA3236520A1 (en) * 2021-12-21 2023-06-29 Soon-Gi Lee Austenitic steel having excellent ultra-low temperature toughness in weld heat-affected zone, and manufacturing method therefor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007126715A (en) * 2005-11-04 2007-05-24 Sumitomo Metal Ind Ltd HIGH-Mn STEEL MATERIAL AND MANUFACTURING METHOD THEREFOR
CN106222554A (en) * 2016-08-23 2016-12-14 南京钢铁股份有限公司 A kind of economical steel used at ultra-low temperature and preparation method thereof
WO2017111510A1 (en) * 2015-12-23 2017-06-29 주식회사 포스코 Non-magnetic steel material having excellent hot workability and manufacturing method therefor
CN107177786A (en) * 2017-05-19 2017-09-19 东北大学 The design and its manufacture method of a kind of high manganese cut deal of LNG storage tank
WO2018117712A1 (en) * 2016-12-22 2018-06-28 주식회사 포스코 High manganese steel having superior low-temperature toughness and yield strength and manufacturing method
KR20180074450A (en) * 2016-12-23 2018-07-03 주식회사 포스코 Low temperature austenitic high manganese steel and method for manufacturing the same
CN108570541A (en) * 2018-05-14 2018-09-25 东北大学 A kind of high-temperature heat treatment method of the high manganese cut deal of LNG storage tank

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940007374B1 (en) 1992-07-24 1994-08-16 포항종합제철 주식회사 Method of manufacturing austenite stainless steel
US10655196B2 (en) * 2011-12-27 2020-05-19 Posco Austenitic steel having excellent machinability and ultra-low temperature toughness in weld heat-affected zone, and method of manufacturing the same
KR101344640B1 (en) * 2012-01-31 2013-12-26 현대제철 주식회사 High strength steel plate and method for manufacturing the same
CN107881432A (en) * 2017-10-13 2018-04-06 舞阳钢铁有限责任公司 Inexpensive ultralow temperature steel heavy plate for pressure vessels and its production method
CN107620010A (en) * 2017-10-18 2018-01-23 舞阳钢铁有限责任公司 A kind of low yield strength ratio high tenacity high manganese steel sheet and its production method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007126715A (en) * 2005-11-04 2007-05-24 Sumitomo Metal Ind Ltd HIGH-Mn STEEL MATERIAL AND MANUFACTURING METHOD THEREFOR
WO2017111510A1 (en) * 2015-12-23 2017-06-29 주식회사 포스코 Non-magnetic steel material having excellent hot workability and manufacturing method therefor
CN106222554A (en) * 2016-08-23 2016-12-14 南京钢铁股份有限公司 A kind of economical steel used at ultra-low temperature and preparation method thereof
WO2018117712A1 (en) * 2016-12-22 2018-06-28 주식회사 포스코 High manganese steel having superior low-temperature toughness and yield strength and manufacturing method
KR20180074450A (en) * 2016-12-23 2018-07-03 주식회사 포스코 Low temperature austenitic high manganese steel and method for manufacturing the same
CN107177786A (en) * 2017-05-19 2017-09-19 东北大学 The design and its manufacture method of a kind of high manganese cut deal of LNG storage tank
CN108570541A (en) * 2018-05-14 2018-09-25 东北大学 A kind of high-temperature heat treatment method of the high manganese cut deal of LNG storage tank

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020085861A1 *

Also Published As

Publication number Publication date
EP3872216A1 (en) 2021-09-01
KR102255825B1 (en) 2021-05-26
CN112912529A (en) 2021-06-04
KR20200047318A (en) 2020-05-07
CN112930415A (en) 2021-06-08
KR102255826B1 (en) 2021-05-26
EP3872210A4 (en) 2021-09-01
EP3872210A1 (en) 2021-09-01
KR20200047317A (en) 2020-05-07

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Owner name: POSCO HOLDINGS INC.

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