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PH12019501270A1 - HIGH-Mn STEEL PLATE AND MANUFACTURING METHOD THEREFOR - Google Patents

HIGH-Mn STEEL PLATE AND MANUFACTURING METHOD THEREFOR

Info

Publication number
PH12019501270A1
PH12019501270A1 PH12019501270A PH12019501270A PH12019501270A1 PH 12019501270 A1 PH12019501270 A1 PH 12019501270A1 PH 12019501270 A PH12019501270 A PH 12019501270A PH 12019501270 A PH12019501270 A PH 12019501270A PH 12019501270 A1 PH12019501270 A1 PH 12019501270A1
Authority
PH
Philippines
Prior art keywords
pcnt
steel sheet
manufacturing
steel plate
method therefor
Prior art date
Application number
PH12019501270A
Inventor
Keiji Ueda
Kazukuni Hase
Original Assignee
Jfe Steel Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=62490939&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=PH12019501270(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Jfe Steel Corp filed Critical Jfe Steel Corp
Publication of PH12019501270A1 publication Critical patent/PH12019501270A1/en

Links

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
    • 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
    • C21D8/0221—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
    • 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
    • C22C38/02—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
    • C22C38/06—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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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

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)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

Provided are a high Mn steel sheet and a method for producing this high Mn steel sheet. This high Mn steel sheet has a component composition which contains, in mass pcnt , 0.20-0.70 pcnt of C, 0.05-1.0 pcnt of Si, 15-30 pcnt of Mn, 0.028 pcnt or less of P, 0.02 pcnt or less of S, 0.01-0.1 pcnt of Al, 0.5-7.0 pcnt of Cr, 0.03-0.30 pcnt of Ni and 0.0010-0.0200 pcnt of N, while containing one or more of 0.003-0.030 pcnt of Nb, 0.03-0.10 pcnt V and 0.003-0.040 pcnt of Ti, with the balance made up of Fe and unavoidable impurities. With respect to this high Mn steel sheet, the microstructure at 0.5 mm below the steel sheet surface has a matrix phase of austenite; and 25 pcnt or more of the austenite in terms of area ratio has a circle-equivalent diameter of 10 æm or more, while having an aspect ratio of the length to the breadth of 3 or more.
PH12019501270A 2016-12-08 2019-06-06 HIGH-Mn STEEL PLATE AND MANUFACTURING METHOD THEREFOR PH12019501270A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/JP2016/005080 WO2018104984A1 (en) 2016-12-08 2016-12-08 HIGH Mn STEEL SHEET AND PRODUCTION METHOD THEREFOR
PCT/JP2017/043245 WO2018105510A1 (en) 2016-12-08 2017-12-01 High mn steel sheet and method for producing same

Publications (1)

Publication Number Publication Date
PH12019501270A1 true PH12019501270A1 (en) 2019-12-16

Family

ID=62490939

Family Applications (1)

Application Number Title Priority Date Filing Date
PH12019501270A PH12019501270A1 (en) 2016-12-08 2019-06-06 HIGH-Mn STEEL PLATE AND MANUFACTURING METHOD THEREFOR

Country Status (8)

Country Link
EP (1) EP3553195B1 (en)
JP (1) JP6418358B1 (en)
KR (2) KR20190077470A (en)
CN (1) CN110050082B (en)
BR (1) BR112019010870B1 (en)
PH (1) PH12019501270A1 (en)
TW (1) TWI653343B (en)
WO (2) WO2018104984A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101889185B1 (en) 2016-12-21 2018-08-16 주식회사 포스코 Hot-rolled steel sheet having superior formability and fatigue property, and method for manufacturing the same
SG11202101056RA (en) * 2018-08-03 2021-03-30 Jfe Steel Corp HIGH-Mn STEEL AND METHOD OF PRODUCING SAME
WO2020035917A1 (en) * 2018-08-15 2020-02-20 Ｊｆｅスチール株式会社 Steel sheet and method for manufacturing same
WO2020044421A1 (en) * 2018-08-28 2020-03-05 Ｊｆｅスチール株式会社 Steel sheet and method for producing same
KR102507276B1 (en) * 2018-09-12 2023-03-07 제이에프이 스틸 가부시키가이샤 Steel and its manufacturing method
BR112021015919A2 (en) * 2019-02-12 2021-10-05 Jfe Steel Corporation STEEL WITH HIGH MN CONTENT AND MANUFACTURING METHOD FOR THE SAME
CN113366138A (en) * 2019-03-19 2021-09-07 杰富意钢铁株式会社 Method for manufacturing high manganese steel cast sheet, high manganese steel sheet, and method for manufacturing high manganese steel sheet
CN114302977B (en) 2019-08-21 2022-12-06 杰富意钢铁株式会社 Steel and its manufacturing method
KR102876862B1 (en) * 2020-02-27 2025-10-28 닛테츠 스테인레스 가부시키가이샤 Stainless steel for metal foil, stainless steel foil and method for manufacturing the same
CN112853194B (en) * 2021-01-06 2022-05-13 鞍钢股份有限公司 Nitrogen-controllable vanadium alloying method for high manganese steel
JP7338792B2 (en) * 2021-02-08 2023-09-05 Ｊｆｅスチール株式会社 Steel material and manufacturing method thereof, tank and manufacturing method thereof
CN116626023A (en) * 2022-02-10 2023-08-22 上汽通用汽车有限公司 Heat-treated steel color metallographic staining agent and method for quantitative inspection of metallographic structure
CN116926443B (en) * 2022-04-07 2025-12-16 南京钢铁股份有限公司 Ultralow-temperature steel and heat treatment process and application thereof
CN119824317A (en) * 2025-01-16 2025-04-15 马鞍山钢铁股份有限公司 Ultra-high manganese 500MPa low-temperature anti-seismic steel bar and production method thereof

Family Cites Families (8)

* 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
JPS57164970A (en) * 1981-04-03 1982-10-09 Kobe Steel Ltd Nonmagnetic high mn-cr steel
JPS5896853A (en) * 1981-11-17 1983-06-09 Sumitomo Metal Ind Ltd High mn steel for extra-low temperature use with superior corrosion resistance and machinability
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
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
CN106795603B (en) * 2014-10-01 2019-07-23 日本制铁株式会社 High-strength oil well steel and oil well pipe
JP6645103B2 (en) * 2014-10-22 2020-02-12 日本製鉄株式会社 High Mn steel material and method for producing the same
JP6693217B2 (en) * 2015-04-02 2020-05-13 日本製鉄株式会社 High Mn steel for cryogenic temperatures

Also Published As

Publication number Publication date
CN110050082A (en) 2019-07-23
CN110050082B (en) 2021-06-22
EP3553195B1 (en) 2021-05-19
JPWO2018105510A1 (en) 2018-12-06
TW201825694A (en) 2018-07-16
KR102309644B1 (en) 2021-10-06
JP6418358B1 (en) 2018-11-07
KR20190077470A (en) 2019-07-03
WO2018104984A1 (en) 2018-06-14
KR20210072140A (en) 2021-06-16
EP3553195A1 (en) 2019-10-16
TWI653343B (en) 2019-03-11
WO2018105510A1 (en) 2018-06-14
EP3553195A4 (en) 2019-10-16
BR112019010870A2 (en) 2019-10-01
BR112019010870B1 (en) 2023-04-11

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