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MY192536A - High-mn steel and method for manufacturing same - Google Patents

High-mn steel and method for manufacturing same

Info

Publication number
MY192536A
MY192536A MYPI2020002748A MYPI2020002748A MY192536A MY 192536 A MY192536 A MY 192536A MY PI2020002748 A MYPI2020002748 A MY PI2020002748A MY PI2020002748 A MYPI2020002748 A MY PI2020002748A MY 192536 A MY192536 A MY 192536A
Authority
MY
Malaysia
Prior art keywords
less
steel
manufacturing same
austenite
microstructure
Prior art date
Application number
MYPI2020002748A
Inventor
Koichi Nakashima
Keiji Ueda
Shigeki Kitsuya
Ryo Arao
Daichi IZUMI
Satoshi Igi
Tomohiro Ono
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
Application filed by Jfe Steel Corp filed Critical Jfe Steel Corp
Publication of MY192536A publication Critical patent/MY192536A/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
    • 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
    • C21D8/0221—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
    • C21D8/0273—Final recrystallisation annealing
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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)
  • 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)

Abstract

Provided is a high-Mn steel which not only has high strength and excellent low-temperature toughness but also has excellent CTOD property at low temperatures. The high-Mn steel has a chemical composition containing, in mass %, C: 0.10 % or more and 0.70 % or less, Si: 0.05 % or more and 0.50 % or less, Mn: 20 % or more and 30 % or less, P: 0.030 % or less, S: 0.0070 % or less, Al: 0.01 % or more and 0.07 % or less, Cr: 0.5 % or more and 7.0 % or less, Ni: 0.01 % or more and less than 0.1 % , Ca: 0.0005 % or more and 0.0050 % or less, N: 0.0050 % or more and 0.0500 % or less, O: 0.0050 % or less, Ti: less than 0.0050 % , and Nb: less than 0.0050 %, the balance consisting of Fe and inevitable impurities, and a microstructure having austenite as a base phase, where the austenite has a grain size of 1 ?m or more and a standard deviation of 9 ?m or less.
MYPI2020002748A 2017-12-07 2018-12-06 High-mn steel and method for manufacturing same MY192536A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017235188 2017-12-07
PCT/JP2018/044941 WO2019112012A1 (en) 2017-12-07 2018-12-06 High-mn steel and method for manufacturing same

Publications (1)

Publication Number Publication Date
MY192536A true MY192536A (en) 2022-08-26

Family

ID=66750519

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2020002748A MY192536A (en) 2017-12-07 2018-12-06 High-mn steel and method for manufacturing same

Country Status (10)

Country Link
US (1) US20210164067A1 (en)
EP (1) EP3722448B1 (en)
JP (1) JP6590117B1 (en)
KR (1) KR102405388B1 (en)
CN (1) CN111433381B (en)
BR (1) BR112020011210B1 (en)
MY (1) MY192536A (en)
PH (1) PH12020550830A1 (en)
SG (1) SG11202005101PA (en)
WO (1) WO2019112012A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6947331B2 (en) * 2019-08-21 2021-10-13 Ｊｆｅスチール株式会社 Steel and its manufacturing method
JP6947330B2 (en) * 2019-08-21 2021-10-13 Ｊｆｅスチール株式会社 Steel and its manufacturing method
CN110983194B (en) * 2019-12-25 2020-09-22 燕山大学 A kind of super tough steel material and its manufacturing method
CN115261743A (en) * 2022-06-22 2022-11-01 河钢股份有限公司 Low-cost high-manganese steel plate and production method thereof
KR20240097540A (en) * 2022-12-20 2024-06-27 주식회사 포스코 Austenitic steel material and method of manufacturing the same
KR20240097539A (en) * 2022-12-20 2024-06-27 주식회사 포스코 Austenitic steel material and method of manufacturing the same

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56258A (en) * 1979-06-12 1981-01-06 Sumitomo Metal Ind Ltd No-nickel high-manganese-content steel for low temperature
JPH0619110B2 (en) * 1986-05-19 1994-03-16 株式会社神戸製鋼所 Method for producing high Mn austenitic stainless steel for cryogenic use
JPH0215148A (en) * 1988-07-02 1990-01-18 Sumitomo Metal Ind Ltd High mn nonmagnetic steel having excellent corrosion resistance
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
KR100776470B1 (en) * 2003-11-27 2007-11-16 수미도모 메탈 인더스트리즈, 리미티드 High tensile steel excellent in toughness of welded zone and offshore structure
JP4324072B2 (en) * 2004-10-21 2009-09-02 新日本製鐵株式会社 Lightweight high strength steel with excellent ductility and its manufacturing method
JP4529872B2 (en) * 2005-11-04 2010-08-25 住友金属工業株式会社 High Mn steel material and manufacturing method thereof
JP5003785B2 (en) * 2010-03-30 2012-08-15 Ｊｆｅスチール株式会社 High tensile steel plate with excellent ductility and method for producing the same
CN103667947B (en) * 2013-11-29 2016-03-30 江阴市恒润重工股份有限公司 Without the stainless manufacturing process of nickel Austriaization body
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
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
JP6728779B2 (en) * 2016-03-03 2020-07-22 日本製鉄株式会社 Low temperature thick steel plate and method of manufacturing the same
CN107177786B (en) * 2017-05-19 2018-12-21 东北大学 A kind of design and its manufacturing method of the high manganese cut deal of LNG storage tank

Also Published As

Publication number Publication date
JPWO2019112012A1 (en) 2019-12-12
KR20200088469A (en) 2020-07-22
WO2019112012A1 (en) 2019-06-13
CN111433381B (en) 2021-09-03
JP6590117B1 (en) 2019-10-16
KR102405388B1 (en) 2022-06-03
PH12020550830A1 (en) 2021-05-10
EP3722448A4 (en) 2020-10-14
CN111433381A (en) 2020-07-17
EP3722448A1 (en) 2020-10-14
BR112020011210A2 (en) 2020-11-17
EP3722448B1 (en) 2024-03-06
US20210164067A1 (en) 2021-06-03
SG11202005101PA (en) 2020-06-29
BR112020011210B1 (en) 2023-04-25

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