EP3872212A4 - Cryogenic austenitic high-manganese steel having excellent corrosion resistance, and manufacturing method therefor - Google Patents

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

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Publication number
EP3872212A4
EP3872212A4 EP19875923.5A EP19875923A EP3872212A4 EP 3872212 A4 EP3872212 A4 EP 3872212A4 EP 19875923 A EP19875923 A EP 19875923A EP 3872212 A4 EP3872212 A4 EP 3872212A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing
corrosion resistance
method therefor
excellent corrosion
manganese steel
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
EP19875923.5A
Other languages
German (de)
French (fr)
Other versions
EP3872212A1 (en
Inventor
Un-Hae LEE
Dong-Ho Lee
Sang-Deok Kang
Sung-Kyu Kim
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/KR2019/014197 external-priority patent/WO2020085864A1/en
Publication of EP3872212A1 publication Critical patent/EP3872212A1/en
Publication of EP3872212A4 publication Critical patent/EP3872212A4/en
Pending legal-status Critical Current

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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
    • 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
    • C22C38/18—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
    • 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
    • C21D8/0247—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)
EP19875923.5A 2018-10-25 2019-10-25 Cryogenic austenitic high-manganese steel having excellent corrosion resistance, and manufacturing method therefor Pending EP3872212A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20180128505 2018-10-25
PCT/KR2019/014197 WO2020085864A1 (en) 2018-10-25 2019-10-25 Cryogenic austenitic high-manganese steel having excellent corrosion resistance, and manufacturing method therefor

Publications (2)

Publication Number Publication Date
EP3872212A1 EP3872212A1 (en) 2021-09-01
EP3872212A4 true EP3872212A4 (en) 2021-09-01

Family

ID=70733240

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19875923.5A Pending EP3872212A4 (en) 2018-10-25 2019-10-25 Cryogenic austenitic high-manganese steel having excellent corrosion resistance, and manufacturing method therefor

Country Status (3)

Country Link
EP (1) EP3872212A4 (en)
KR (1) KR102290109B1 (en)
CN (1) CN112912531A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20240041763A (en) 2022-09-23 2024-04-01 두산에너빌리티 주식회사 Economical Austenitic stainless steel with excellent cryogenic impact absorption energy and manufacturing method thereof
KR20240097539A (en) * 2022-12-20 2024-06-27 주식회사 포스코 Austenitic steel material and method of manufacturing the same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5623259A (en) * 1979-08-03 1981-03-05 Sumitomo Metal Ind Ltd Nickel-free high manganese cast steel for low temperature use
JP2007126715A (en) * 2005-11-04 2007-05-24 Sumitomo Metal Ind Ltd HIGH-Mn STEEL MATERIAL AND MANUFACTURING METHOD THEREFOR
KR20160078664A (en) * 2014-12-24 2016-07-05 주식회사 포스코 Low temperature steels having superior surface quality and method for production thereof
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
KR20180074450A (en) * 2016-12-23 2018-07-03 주식회사 포스코 Low temperature austenitic high manganese steel and method for manufacturing the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6176040B2 (en) * 2012-10-05 2017-08-09 新日鐵住金株式会社 Cr-added high corrosion resistance steel sheet and method for producing the same
KR20150075324A (en) 2013-12-25 2015-07-03 주식회사 포스코 High manganese austenitic steel sheet having superior yield strength and method for manufacturing the same
KR101889187B1 (en) * 2015-12-23 2018-08-16 주식회사 포스코 Nonmagnetic steel having superior hot workability and method for manufacturing the same
JP6791192B2 (en) 2018-04-04 2020-11-25 Ｊｆｅスチール株式会社 High Mn steel and its manufacturing method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5623259A (en) * 1979-08-03 1981-03-05 Sumitomo Metal Ind Ltd Nickel-free high manganese cast steel for low temperature use
JP2007126715A (en) * 2005-11-04 2007-05-24 Sumitomo Metal Ind Ltd HIGH-Mn STEEL MATERIAL AND MANUFACTURING METHOD THEREFOR
KR20160078664A (en) * 2014-12-24 2016-07-05 주식회사 포스코 Low temperature steels having superior surface quality and method for production thereof
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
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020085864A1 *

Also Published As

Publication number Publication date
EP3872212A1 (en) 2021-09-01
KR20200047427A (en) 2020-05-07
KR102290109B1 (en) 2021-08-19
CN112912531A (en) 2021-06-04

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Owner name: POSCO HOLDINGS INC.

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Owner name: POSCO CO., LTD