EP4019651A4 - Duplex stainless steel material - Google Patents

Duplex stainless steel material Download PDF

Info

Publication number
EP4019651A4
EP4019651A4 EP20853663.1A EP20853663A EP4019651A4 EP 4019651 A4 EP4019651 A4 EP 4019651A4 EP 20853663 A EP20853663 A EP 20853663A EP 4019651 A4 EP4019651 A4 EP 4019651A4
Authority
EP
European Patent Office
Prior art keywords
stainless steel
steel material
duplex stainless
duplex
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
EP20853663.1A
Other languages
German (de)
French (fr)
Other versions
EP4019651A1 (en
Inventor
Mikiko NOGUCHI
Yusaku TOMIO
Toshio Mochizuki
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.)
Nippon Steel Corp
Original Assignee
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of EP4019651A1 publication Critical patent/EP4019651A1/en
Publication of EP4019651A4 publication Critical patent/EP4019651A4/en
Pending legal-status Critical Current

Links

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
    • C22C38/18—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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • 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
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • 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
    • 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
    • C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • 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
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • 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
    • C22C38/002—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
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron

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)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
EP20853663.1A 2019-08-19 2020-08-18 Duplex stainless steel material Pending EP4019651A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019149844 2019-08-19
PCT/JP2020/031050 WO2021033672A1 (en) 2019-08-19 2020-08-18 Duplex stainless steel material

Publications (2)

Publication Number Publication Date
EP4019651A1 EP4019651A1 (en) 2022-06-29
EP4019651A4 true EP4019651A4 (en) 2022-11-02

Family

ID=74661141

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20853663.1A Pending EP4019651A4 (en) 2019-08-19 2020-08-18 Duplex stainless steel material

Country Status (5)

Country Link
US (1) US20220145438A1 (en)
EP (1) EP4019651A4 (en)
JP (1) JP7173359B2 (en)
CA (1) CA3148069C (en)
WO (1) WO2021033672A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023054343A1 (en) * 2021-09-29 2023-04-06 日本製鉄株式会社 Duplex stainless steel material
AR127221A1 (en) * 2021-10-04 2023-12-27 Nippon Steel Corp DUPLEX STAINLESS STEEL MATERIAL
JP7239084B1 (en) * 2021-10-04 2023-03-14 日本製鉄株式会社 duplex stainless steel
JP7323858B1 (en) * 2022-02-25 2023-08-09 日本製鉄株式会社 duplex stainless steel
WO2023162817A1 (en) * 2022-02-25 2023-08-31 日本製鉄株式会社 Duplex stainless steel material
JP7364955B1 (en) 2022-07-04 2023-10-19 日本製鉄株式会社 Duplex stainless steel material

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130315776A1 (en) * 2011-02-14 2013-11-28 Nippon Steel & Sumitomo Metal Corporation Duplex stainless steel
US20130312880A1 (en) * 2011-02-14 2013-11-28 Nippon Steel & Sumitomo Metal Cororation Duplex stainless steel and production method therefor
EP2684973A1 (en) * 2011-03-09 2014-01-15 Nippon Steel & Sumikin Stainless Steel Corporation Two-phase stainless steel exhibiting excellent corrosion resistance in weld
EP2754726A1 (en) * 2011-09-06 2014-07-16 Nippon Steel & Sumitomo Metal Corporation Two-phase stainless steel
WO2017208946A1 (en) * 2016-06-01 2017-12-07 新日鐵住金株式会社 Duplex stainless steel and duplex stainless steel manufacturing method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2500162B2 (en) 1991-11-11 1996-05-29 住友金属工業株式会社 High strength duplex stainless steel with excellent corrosion resistance
JPH09195003A (en) 1996-01-08 1997-07-29 Sumitomo Metal Mining Co Ltd Duplex stainless steel
JP5842769B2 (en) 2012-08-27 2016-01-13 新日鐵住金株式会社 Duplex stainless steel and manufacturing method thereof
JP6303851B2 (en) 2014-06-18 2018-04-04 新日鐵住金株式会社 Duplex stainless steel pipe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130315776A1 (en) * 2011-02-14 2013-11-28 Nippon Steel & Sumitomo Metal Corporation Duplex stainless steel
US20130312880A1 (en) * 2011-02-14 2013-11-28 Nippon Steel & Sumitomo Metal Cororation Duplex stainless steel and production method therefor
EP2684973A1 (en) * 2011-03-09 2014-01-15 Nippon Steel & Sumikin Stainless Steel Corporation Two-phase stainless steel exhibiting excellent corrosion resistance in weld
EP2754726A1 (en) * 2011-09-06 2014-07-16 Nippon Steel & Sumitomo Metal Corporation Two-phase stainless steel
WO2017208946A1 (en) * 2016-06-01 2017-12-07 新日鐵住金株式会社 Duplex stainless steel and duplex stainless steel manufacturing method

Also Published As

Publication number Publication date
EP4019651A1 (en) 2022-06-29
JP7173359B2 (en) 2022-11-16
CA3148069A1 (en) 2021-02-25
JPWO2021033672A1 (en) 2021-02-25
US20220145438A1 (en) 2022-05-12
WO2021033672A1 (en) 2021-02-25
CA3148069C (en) 2023-10-24

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RIC1 Information provided on ipc code assigned before grant

Ipc: C21D 8/10 20060101ALI20220928BHEP

Ipc: C21D 8/02 20060101ALI20220928BHEP

Ipc: C21D 6/00 20060101ALI20220928BHEP

Ipc: C21D 1/18 20060101ALI20220928BHEP

Ipc: C21D 9/46 20060101ALI20220928BHEP

Ipc: C21D 9/08 20060101ALI20220928BHEP

Ipc: C22C 38/50 20060101ALI20220928BHEP

Ipc: C22C 38/48 20060101ALI20220928BHEP

Ipc: C22C 38/54 20060101ALI20220928BHEP

Ipc: C22C 38/00 20060101ALI20220928BHEP

Ipc: C22C 38/06 20060101ALI20220928BHEP

Ipc: C22C 38/04 20060101ALI20220928BHEP

Ipc: C22C 38/02 20060101ALI20220928BHEP

Ipc: C22C 38/46 20060101ALI20220928BHEP

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Ipc: C22C 38/58 20060101ALI20220928BHEP

Ipc: C22C 38/42 20060101AFI20220928BHEP

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