PH12020550830A1 - High-mn steel and method for manufacturing same - Google Patents

High-mn steel and method for manufacturing same

Info

Publication number
PH12020550830A1
PH12020550830A1 PH12020550830A PH12020550830A PH12020550830A1 PH 12020550830 A1 PH12020550830 A1 PH 12020550830A1 PH 12020550830 A PH12020550830 A PH 12020550830A PH 12020550830 A PH12020550830 A PH 12020550830A PH 12020550830 A1 PH12020550830 A1 PH 12020550830A1
Authority
PH
Philippines
Prior art keywords
pcnt
less
steel
manufacturing same
austenite
Prior art date
Application number
PH12020550830A
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 PH12020550830A1 publication Critical patent/PH12020550830A1/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
    • C21D8/0205—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
    • C21D8/0273—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

Abstract

Provided is a high-Mn steel having exceptional high strength and low-temperature toughness, and furthermore having exceptional low-temperature CTOD characteristics. The high-Mn steel has: a component composition comprising, in percent by mass, 0.10-0.70 pcnt of C, 0.05-0.50 pcnt of Si, 20-30 pcnt of Mn, 0.030 pcnt or less of P, 0.0070 pcnt or less of S, 0.01-0.07 pcnt of Al, 0.5-7.0 pcnt of Cr, at least 0.01 pcnt and less than 0.1 pcnt of Ni, 0.0005-0.0050 pcnt of Ca, 0.0050-0.0500 pcnt of N, 0.0050 pcnt or less of O, less than 0.0050 pcnt of Ti, and less than 0.0050 pcnt of Nb, the balance being Fe and unavoidable impurities; and a structure having austenite as a matrix phase; the austenite having a grain size of 1 æm or greater and a standard deviation of 9 æm or less.
PH12020550830A 2017-12-07 2020-06-05 High-mn steel and method for manufacturing same PH12020550830A1 (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
PH12020550830A1 true PH12020550830A1 (en) 2021-05-10

Family

ID=66750519

Family Applications (1)

Application Number Title Priority Date Filing Date
PH12020550830A PH12020550830A1 (en) 2017-12-07 2020-06-05 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 (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021033694A1 (en) * 2019-08-21 2021-02-25 Ｊｆｅスチール株式会社 Steel and method for manufacturing same
US20220275489A1 (en) * 2019-08-21 2022-09-01 Jfe Steel Corporation Steel and method of producing same
CN110983194B (en) * 2019-12-25 2020-09-22 燕山大学 Super-toughness steel material and manufacturing method thereof
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

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
JP4432905B2 (en) * 2003-11-27 2010-03-17 住友金属工業株式会社 High-strength steel and offshore structures with excellent weld toughness
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
SG11202005101PA (en) 2020-06-29
JPWO2019112012A1 (en) 2019-12-12
KR102405388B1 (en) 2022-06-03
MY192536A (en) 2022-08-26
BR112020011210B1 (en) 2023-04-25
CN111433381A (en) 2020-07-17
BR112020011210A2 (en) 2020-11-17
EP3722448A1 (en) 2020-10-14
EP3722448A4 (en) 2020-10-14
CN111433381B (en) 2021-09-03
EP3722448B1 (en) 2024-03-06
US20210164067A1 (en) 2021-06-03
JP6590117B1 (en) 2019-10-16
WO2019112012A1 (en) 2019-06-13
KR20200088469A (en) 2020-07-22

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