EP2677056A4 - Duplex stainless steel - Google Patents

Duplex stainless steel

Info

Publication number
EP2677056A4
EP2677056A4 EP12747362.7A EP12747362A EP2677056A4 EP 2677056 A4 EP2677056 A4 EP 2677056A4 EP 12747362 A EP12747362 A EP 12747362A EP 2677056 A4 EP2677056 A4 EP 2677056A4
Authority
EP
European Patent Office
Prior art keywords
stainless steel
duplex stainless
duplex
steel
stainless
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.)
Granted
Application number
EP12747362.7A
Other languages
German (de)
French (fr)
Other versions
EP2677056A1 (en
EP2677056B1 (en
Inventor
Kenta Yamada
Hiroyuki Nagayama
Masahiko Hamada
Daisuke Motoya
Hisashi Amaya
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 and Sumitomo Metal 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 and Sumitomo Metal Corp filed Critical Nippon Steel and Sumitomo Metal Corp
Publication of EP2677056A1 publication Critical patent/EP2677056A1/en
Publication of EP2677056A4 publication Critical patent/EP2677056A4/en
Application granted granted Critical
Publication of EP2677056B1 publication Critical patent/EP2677056B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C21D8/0221—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
    • 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
    • C22C38/04—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
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • 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
    • 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
    • C21D2211/004—Dispersions; Precipitations
    • 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
    • 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
    • C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working

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)
  • Heat Treatment Of Sheet Steel (AREA)
EP12747362.7A 2011-02-14 2012-02-10 Duplex stainless steel Active EP2677056B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011028334 2011-02-14
PCT/JP2012/053037 WO2012111537A1 (en) 2011-02-14 2012-02-10 Duplex stainless steel

Publications (3)

Publication Number Publication Date
EP2677056A1 EP2677056A1 (en) 2013-12-25
EP2677056A4 true EP2677056A4 (en) 2015-03-25
EP2677056B1 EP2677056B1 (en) 2016-05-18

Family

ID=46672462

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12747362.7A Active EP2677056B1 (en) 2011-02-14 2012-02-10 Duplex stainless steel

Country Status (9)

Country Link
US (1) US20130315776A1 (en)
EP (1) EP2677056B1 (en)
JP (1) JP5206904B2 (en)
CN (1) CN103370435B (en)
AU (1) AU2012218661B2 (en)
BR (1) BR112013017647B1 (en)
CA (1) CA2826893C (en)
MX (1) MX351782B (en)
WO (1) WO2012111537A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2770378C (en) * 2009-09-10 2014-02-18 Sumitomo Metal Industries, Ltd. Duplex stainless steel
EP2677054B1 (en) * 2011-02-14 2020-03-25 Nippon Steel Corporation Duplex stainless steel plate or pipe, and process for production thereof
CN103781931B (en) * 2011-09-06 2016-06-22 新日铁住金株式会社 Two phase stainless steel
CN103938115A (en) * 2014-03-03 2014-07-23 黄忠波 Double phase stainless steel alloy material
CN105986196A (en) * 2015-03-05 2016-10-05 中国科学院金属研究所 Microbiological corrosion resisting duplex stainless steel
US10793930B2 (en) 2016-02-17 2020-10-06 Nippon Steel & Sumikin Stainless Steel Corporation Ferritic-austenitic two-phase stainless steel material and method for manufacturing same
CN109072386A (en) * 2016-06-01 2018-12-21 新日铁住金株式会社 The manufacturing method of two phase stainless steel and two phase stainless steel
EP3508596B1 (en) 2016-09-02 2022-03-30 JFE Steel Corporation Dual-phase stainless seamless steel pipe and method of production thereof
JP6780426B2 (en) * 2016-10-06 2020-11-04 日本製鉄株式会社 Duplex stainless steel
JP6946737B2 (en) * 2017-05-18 2021-10-06 日本製鉄株式会社 Duplex stainless steel and its manufacturing method
CN109648064B (en) * 2019-01-25 2021-04-20 北京科技大学 Method for realizing sigma phase transformation of super austenitic stainless steel solidification structure
WO2020158111A1 (en) * 2019-01-30 2020-08-06 Ｊｆｅスチール株式会社 Duplex stainless steel, seamless steel pipe, and production method for duplex stainless steel
EP3960885B1 (en) * 2019-04-24 2024-04-10 Nippon Steel Corporation Duplex stainless seamless steel pipe and method for producing duplex stainless seamless steel pipe
BR112021022956A2 (en) * 2019-05-29 2022-01-18 Jfe Steel Corp Duplex stainless steel and method of making the same, and duplex stainless steel tube
EP4019651A4 (en) * 2019-08-19 2022-11-02 Nippon Steel Corporation Duplex stainless steel material
JP7518343B2 (en) 2020-04-10 2024-07-18 日本製鉄株式会社 Duplex Stainless Steel
CN115735016B (en) * 2020-06-30 2024-03-08 日本制铁株式会社 Double-phase stainless steel pipe and welded joint
CN113210420B (en) * 2021-04-21 2022-12-06 鞍钢联众(广州)不锈钢有限公司 Double-phase stainless steel coil and manufacturing method thereof

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS505972B1 (en) * 1970-05-11 1975-03-10
GB1433857A (en) * 1973-05-04 1976-04-28 Nippon Steel Corp Stainless steels
JPS5340656A (en) * 1973-02-07 1978-04-13 Nippon Yakin Kogyo Co Ltd Electrode core wire provided for stainless steel welding
JPS55158256A (en) * 1979-05-29 1980-12-09 Daido Steel Co Ltd Ferritic-austenitic two-phase stainless steel
JPH05302118A (en) * 1992-03-27 1993-11-16 Kubota Corp Production of duplex stainless steel excellent in drillability and bitability
JPH06184699A (en) * 1992-12-17 1994-07-05 Kubota Corp Stainless steel with high corrosion fatigue strength
JPH06184698A (en) * 1992-12-17 1994-07-05 Kubota Corp Stainless steel with high corrosion fatigue strength
JPH08120413A (en) * 1994-10-26 1996-05-14 Yasuki Seisakusho:Kk Casting member of two-phase stainless steel and its production
JPH1060526A (en) * 1996-08-19 1998-03-03 Nkk Corp Production of seawater resistant precipitation strengthening type duplex stainless steel
JP2000313940A (en) * 1999-04-27 2000-11-14 Sumitomo Metal Ind Ltd Duplex stainless steel material and its manufacture
US20090162238A1 (en) * 2007-12-20 2009-06-25 Ati Properties, Inc. Corrosion resistant lean austenitic stainless steel

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51117916A (en) * 1975-04-10 1976-10-16 Daido Steel Co Ltd Ferrite-austenite type two phase stainless steel
EP0750053B1 (en) 1994-12-16 2001-10-10 Sumitomo Metal Industries, Ltd. Duplex stainless steel excellent in corrosion resistance
JP3534032B2 (en) * 2000-02-03 2004-06-07 住友金属工業株式会社 Method for producing duplex stainless steel pipe
JP2003171743A (en) 2001-12-06 2003-06-20 Aichi Steel Works Ltd Duplex stainless steel having excellent strength, toughness and seawater resistance, and production method therefor
JP4502131B2 (en) * 2005-09-20 2010-07-14 住友金属工業株式会社 Duplex stainless steel with excellent hot workability
CA2770378C (en) * 2009-09-10 2014-02-18 Sumitomo Metal Industries, Ltd. Duplex stainless steel

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS505972B1 (en) * 1970-05-11 1975-03-10
JPS5340656A (en) * 1973-02-07 1978-04-13 Nippon Yakin Kogyo Co Ltd Electrode core wire provided for stainless steel welding
GB1433857A (en) * 1973-05-04 1976-04-28 Nippon Steel Corp Stainless steels
JPS55158256A (en) * 1979-05-29 1980-12-09 Daido Steel Co Ltd Ferritic-austenitic two-phase stainless steel
JPH05302118A (en) * 1992-03-27 1993-11-16 Kubota Corp Production of duplex stainless steel excellent in drillability and bitability
JPH06184699A (en) * 1992-12-17 1994-07-05 Kubota Corp Stainless steel with high corrosion fatigue strength
JPH06184698A (en) * 1992-12-17 1994-07-05 Kubota Corp Stainless steel with high corrosion fatigue strength
JPH08120413A (en) * 1994-10-26 1996-05-14 Yasuki Seisakusho:Kk Casting member of two-phase stainless steel and its production
JPH1060526A (en) * 1996-08-19 1998-03-03 Nkk Corp Production of seawater resistant precipitation strengthening type duplex stainless steel
JP2000313940A (en) * 1999-04-27 2000-11-14 Sumitomo Metal Ind Ltd Duplex stainless steel material and its manufacture
US20090162238A1 (en) * 2007-12-20 2009-06-25 Ati Properties, Inc. Corrosion resistant lean austenitic stainless steel

Also Published As

Publication number Publication date
EP2677056A1 (en) 2013-12-25
BR112013017647A2 (en) 2016-12-20
EP2677056B1 (en) 2016-05-18
AU2012218661A1 (en) 2013-09-05
CN103370435B (en) 2016-04-20
JP5206904B2 (en) 2013-06-12
MX2013008518A (en) 2013-08-12
CN103370435A (en) 2013-10-23
BR112013017647B1 (en) 2019-03-26
JPWO2012111537A1 (en) 2014-07-07
WO2012111537A1 (en) 2012-08-23
CA2826893A1 (en) 2012-08-23
CA2826893C (en) 2016-06-07
MX351782B (en) 2017-10-30
US20130315776A1 (en) 2013-11-28
AU2012218661B2 (en) 2015-04-30

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