EP3705595A4 - Non-magnetic austenitic stainless steel having improved strength and surface conductivity - Google Patents

Non-magnetic austenitic stainless steel having improved strength and surface conductivity Download PDF

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Publication number
EP3705595A4
EP3705595A4 EP18890862.8A EP18890862A EP3705595A4 EP 3705595 A4 EP3705595 A4 EP 3705595A4 EP 18890862 A EP18890862 A EP 18890862A EP 3705595 A4 EP3705595 A4 EP 3705595A4
Authority
EP
European Patent Office
Prior art keywords
stainless steel
austenitic stainless
improved strength
surface conductivity
magnetic austenitic
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
EP18890862.8A
Other languages
German (de)
French (fr)
Other versions
EP3705595A1 (en
Inventor
Jong-Hee Kim
Kwang Min Kim
Bo-Sung Seo
Hak 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
Publication of EP3705595A4 publication Critical patent/EP3705595A4/en
Publication of EP3705595A1 publication Critical patent/EP3705595A1/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
    • C22C38/04—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
    • C22C38/18—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
    • 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • 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
    • C21D8/0221—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
    • 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
    • C22C38/001—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
    • C22C38/02—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
    • C22C38/18—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
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • 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
    • 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
    • C21D2211/005—Ferrite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
EP18890862.8A 2017-12-20 2018-10-05 Non-magnetic austenitic stainless steel having improved strength and surface conductivity Pending EP3705595A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020170176559A KR102020507B1 (en) 2017-12-20 2017-12-20 Non-magnetic austenitic stainless steel improved in strength and surface conductivity
PCT/KR2018/011762 WO2019124689A1 (en) 2017-12-20 2018-10-05 Non-magnetic austenitic stainless steel having improved strength and surface conductivity

Publications (2)

Publication Number Publication Date
EP3705595A4 true EP3705595A4 (en) 2020-09-09
EP3705595A1 EP3705595A1 (en) 2020-09-09

Family

ID=66993626

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18890862.8A Pending EP3705595A1 (en) 2017-12-20 2018-10-05 Non-magnetic austenitic stainless steel having improved strength and surface conductivity

Country Status (6)

Country Link
US (1) US20200370154A1 (en)
EP (1) EP3705595A1 (en)
JP (1) JP6983321B2 (en)
KR (1) KR102020507B1 (en)
CN (1) CN111492081B (en)
WO (1) WO2019124689A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3904401A (en) * 1974-03-21 1975-09-09 Carpenter Technology Corp Corrosion resistant austenitic stainless steel
US4822556A (en) * 1987-02-26 1989-04-18 Baltimore Specialty Steels Corporation Austenitic stainless steel combining strength and resistance to intergranular corrosion
US5094812A (en) * 1990-04-12 1992-03-10 Carpenter Technology Corporation Austenitic, non-magnetic, stainless steel alloy
JPH07157847A (en) * 1993-12-08 1995-06-20 Taiheiyo Kinzoku Kk Material for exterior ornamental parts of clock and exterior ornamental parts for clock
EP2924131A1 (en) * 2014-03-28 2015-09-30 Outokumpu Oyj Austenitic stainless steel

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5891160A (en) * 1981-11-24 1983-05-31 Sumitomo Metal Ind Ltd Nonmagnetic steel roll for continuous casting and its manufacture
JPS6313692A (en) * 1986-07-05 1988-01-20 Kobe Steel Ltd Wire for welding austenitic stainless steel
JPH09195007A (en) * 1996-01-19 1997-07-29 Kawasaki Steel Corp Chromium-manganese-nitrogen base austenitic stainless steel excellent in corrosion resistance
US5904812A (en) * 1997-06-16 1999-05-18 Kimberly-Clark Worldwide, Inc. Calendered and embossed tissue products
DE102006033973A1 (en) * 2006-07-20 2008-01-24 Technische Universität Bergakademie Freiberg Stainless austenitic cast steel and its use
CN100554480C (en) * 2007-10-10 2009-10-28 江苏省方通新型不锈钢制品股份有限公司 Chromium-manganese-copper-molybdenum series austenite corrosion-resistant wear-proof stainless steel
JP5444561B2 (en) * 2009-02-27 2014-03-19 日本冶金工業株式会社 High Mn austenitic stainless steel and metal parts for clothing
CN101503751B (en) * 2009-03-26 2010-06-16 张国宝 Power-on water-bath steel wire quenching heat treatment method
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
JP6560881B2 (en) * 2015-03-26 2019-08-14 日鉄ステンレス株式会社 Extremely low permeability stainless steel wire, as well as steel wire and deformed wire with excellent durability
EP3147378A1 (en) * 2015-09-25 2017-03-29 The Swatch Group Research and Development Ltd. Nickel-free austenitic stainless steel
CN105839022B (en) * 2016-03-31 2021-04-09 宝钢德盛不锈钢有限公司 High-hardness non-magnetic nickel-free stainless steel and manufacturing method thereof
CN106399854B (en) * 2016-06-23 2018-10-02 宝山钢铁股份有限公司 The excellent non magnetic steel plate of high manganese of stress corrosion dehiscence resistant and its manufacturing method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3904401A (en) * 1974-03-21 1975-09-09 Carpenter Technology Corp Corrosion resistant austenitic stainless steel
US4822556A (en) * 1987-02-26 1989-04-18 Baltimore Specialty Steels Corporation Austenitic stainless steel combining strength and resistance to intergranular corrosion
US5094812A (en) * 1990-04-12 1992-03-10 Carpenter Technology Corporation Austenitic, non-magnetic, stainless steel alloy
JPH07157847A (en) * 1993-12-08 1995-06-20 Taiheiyo Kinzoku Kk Material for exterior ornamental parts of clock and exterior ornamental parts for clock
EP2924131A1 (en) * 2014-03-28 2015-09-30 Outokumpu Oyj Austenitic stainless steel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2019124689A1 *

Also Published As

Publication number Publication date
JP2021507103A (en) 2021-02-22
EP3705595A1 (en) 2020-09-09
JP6983321B2 (en) 2021-12-17
CN111492081A (en) 2020-08-04
KR102020507B1 (en) 2019-09-10
WO2019124689A1 (en) 2019-06-27
CN111492081B (en) 2021-11-19
KR20190074873A (en) 2019-06-28
US20200370154A1 (en) 2020-11-26

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Owner name: POSCO HOLDINGS INC.

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Owner name: POSCO CO., LTD