EP3872217A4 - Cryogenic austenitic high manganese steel having excellent surface quality and manufacturing method therefor - Google Patents

Cryogenic austenitic high manganese steel having excellent surface quality and manufacturing method therefor Download PDF

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Publication number
EP3872217A4
EP3872217A4 EP19877327.7A EP19877327A EP3872217A4 EP 3872217 A4 EP3872217 A4 EP 3872217A4 EP 19877327 A EP19877327 A EP 19877327A EP 3872217 A4 EP3872217 A4 EP 3872217A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing
surface quality
method therefor
excellent surface
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
EP19877327.7A
Other languages
German (de)
French (fr)
Other versions
EP3872217A1 (en
Inventor
Sung-Kyu Kim
Yu-Mi Ha
Dong-Ho Lee
Un-Hae LEE
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/KR2019/014170 external-priority patent/WO2020085851A1/en
Publication of EP3872217A1 publication Critical patent/EP3872217A1/en
Publication of EP3872217A4 publication Critical patent/EP3872217A4/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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous 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
    • 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
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold 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
    • 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
    • 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
    • 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)
EP19877327.7A 2018-10-25 2019-10-25 Cryogenic austenitic high manganese steel having excellent surface quality and manufacturing method therefor Pending EP3872217A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR20180128501 2018-10-25
KR1020190118927A KR102255827B1 (en) 2018-10-25 2019-09-26 Low-temperature austenitic high manganese steel having excellent surface quality and manufacturing method for the same
PCT/KR2019/014170 WO2020085851A1 (en) 2018-10-25 2019-10-25 Cryogenic austenitic high manganese steel having excellent surface quality and manufacturing method therefor

Publications (2)

Publication Number Publication Date
EP3872217A1 EP3872217A1 (en) 2021-09-01
EP3872217A4 true EP3872217A4 (en) 2021-09-01

Family

ID=70733248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19877327.7A Pending EP3872217A4 (en) 2018-10-25 2019-10-25 Cryogenic austenitic high manganese steel having excellent surface quality and manufacturing method therefor

Country Status (3)

Country Link
EP (1) EP3872217A4 (en)
KR (1) KR102255827B1 (en)
CN (1) CN112888804A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114888075B (en) * 2022-04-13 2024-06-07 大冶特殊钢有限公司 Rolling method of 80Mn14Ti drill core for drill tool

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113637908B (en) * 2021-07-30 2023-05-12 河钢股份有限公司 High manganese steel plate for large-thickness low-temperature environment and production method thereof

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
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 (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2978427B2 (en) * 1995-05-22 1999-11-15 株式会社神戸製鋼所 High Mn nonmagnetic steel for cryogenic use and manufacturing method
KR20000041265A (en) * 1998-12-22 2000-07-15 이구택 Method for producing high manganese hot rolled metal strip by mini mill process and for preventing surface scab defect and crack defect
FR2857980B1 (en) 2003-07-22 2006-01-13 Usinor PROCESS FOR MANUFACTURING HIGH-STRENGTH FERRO-CARBON-MANGANESE AUSTENITIC STEEL SHEET, EXCELLENT TENACITY AND COLD SHAPINGABILITY, AND SHEETS THUS PRODUCED
WO2013095005A1 (en) * 2011-12-23 2013-06-27 주식회사 포스코 Non-magnetic high manganese steel sheet with high strength and manufacturing method thereof
KR101543916B1 (en) * 2013-12-25 2015-08-11 주식회사 포스코 Steels for low temperature services having superior deformed surface quality and method for production thereof
KR20150075275A (en) 2013-12-25 2015-07-03 주식회사 포스코 A high manganese steel having superior toughness at low temperature, and manufacturing method
KR101665821B1 (en) * 2014-12-24 2016-10-13 주식회사 포스코 Low temperature steels having superior surface quality and method for production thereof
JP6703608B2 (en) * 2015-12-22 2020-06-03 ポスコＰｏｓｃｏ Austenitic steel with excellent hydrogen embrittlement resistance
KR101889187B1 (en) * 2015-12-23 2018-08-16 주식회사 포스코 Nonmagnetic steel having superior hot workability and method for manufacturing the same

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
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 WO2020085851A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114888075B (en) * 2022-04-13 2024-06-07 大冶特殊钢有限公司 Rolling method of 80Mn14Ti drill core for drill tool

Also Published As

Publication number Publication date
EP3872217A1 (en) 2021-09-01
KR20200047320A (en) 2020-05-07
KR102255827B1 (en) 2021-05-26
CN112888804A (en) 2021-06-01

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Owner name: POSCO HOLDINGS INC.

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Owner name: POSCO CO., LTD