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EP2172574A4 - Ferritic-austenitic stainless steel excellent in corrosion resistance and workability and process for manufacturing the same - Google Patents

Ferritic-austenitic stainless steel excellent in corrosion resistance and workability and process for manufacturing the same Download PDF

Info

Publication number
EP2172574A4
EP2172574A4 EP08792317.3A EP08792317A EP2172574A4 EP 2172574 A4 EP2172574 A4 EP 2172574A4 EP 08792317 A EP08792317 A EP 08792317A EP 2172574 A4 EP2172574 A4 EP 2172574A4
Authority
EP
European Patent Office
Prior art keywords
ferritic
workability
manufacturing
stainless steel
same
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
EP08792317.3A
Other languages
German (de)
French (fr)
Other versions
EP2172574B1 (en
EP2172574A1 (en
Inventor
Masaharu Hatano
Akihiko Takahashi
Eiichiro Ishimaru
Ken Kimura
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 Stainless Steel Corp
Original Assignee
Nippon Steel and Sumikin Stainless 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
Priority claimed from JP2007202016A external-priority patent/JP5156293B2/en
Priority claimed from JP2007222259A external-priority patent/JP5213386B2/en
Application filed by Nippon Steel and Sumikin Stainless Steel Corp filed Critical Nippon Steel and Sumikin Stainless Steel Corp
Priority to EP18188353.9A priority Critical patent/EP3434802B1/en
Publication of EP2172574A1 publication Critical patent/EP2172574A1/en
Publication of EP2172574A4 publication Critical patent/EP2172574A4/en
Application granted granted Critical
Publication of EP2172574B1 publication Critical patent/EP2172574B1/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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • 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
    • 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
    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • 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
    • C22C38/58—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
    • C21D2211/005—Ferrite

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 Sheet Steel (AREA)
EP08792317.3A 2007-08-02 2008-08-01 Ferritic-austenitic stainless steel excellent in corrosion resistance and workability and process for manufacturing the same Active EP2172574B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18188353.9A EP3434802B1 (en) 2007-08-02 2008-08-01 Ferritic-austenitic stainless steel excellent in corrosion resistance and workability

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2007202016A JP5156293B2 (en) 2007-08-02 2007-08-02 Ferritic / austenitic stainless steel with excellent corrosion resistance and workability and manufacturing method thereof
JP2007222259A JP5213386B2 (en) 2007-08-29 2007-08-29 Ferritic / austenitic stainless steel sheet with excellent formability and manufacturing method thereof
PCT/JP2008/064260 WO2009017258A1 (en) 2007-08-02 2008-08-01 Ferritic-austenitic stainless steel excellent in corrosion resistance and workability and process for manufacturing the same

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP18188353.9A Division EP3434802B1 (en) 2007-08-02 2008-08-01 Ferritic-austenitic stainless steel excellent in corrosion resistance and workability
EP18188353.9A Division-Into EP3434802B1 (en) 2007-08-02 2008-08-01 Ferritic-austenitic stainless steel excellent in corrosion resistance and workability

Publications (3)

Publication Number Publication Date
EP2172574A1 EP2172574A1 (en) 2010-04-07
EP2172574A4 true EP2172574A4 (en) 2017-06-07
EP2172574B1 EP2172574B1 (en) 2019-01-23

Family

ID=40304477

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08792317.3A Active EP2172574B1 (en) 2007-08-02 2008-08-01 Ferritic-austenitic stainless steel excellent in corrosion resistance and workability and process for manufacturing the same
EP18188353.9A Active EP3434802B1 (en) 2007-08-02 2008-08-01 Ferritic-austenitic stainless steel excellent in corrosion resistance and workability

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP18188353.9A Active EP3434802B1 (en) 2007-08-02 2008-08-01 Ferritic-austenitic stainless steel excellent in corrosion resistance and workability

Country Status (6)

Country Link
US (2) US20100126644A1 (en)
EP (2) EP2172574B1 (en)
KR (2) KR101253326B1 (en)
CN (1) CN101765671B (en)
ES (2) ES2717840T3 (en)
WO (1) WO2009017258A1 (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI394848B (en) * 2007-10-10 2013-05-01 Nippon Steel & Sumikin Sst Two-phase stainless steel wire rod, steel wire, bolt and manufacturing method thereof
JP5335503B2 (en) * 2009-03-19 2013-11-06 新日鐵住金ステンレス株式会社 Duplex stainless steel sheet with excellent press formability
JP5500960B2 (en) * 2009-12-01 2014-05-21 新日鐵住金ステンレス株式会社 Fine grain austenitic stainless steel sheet with excellent stress corrosion cracking resistance and workability
JP5610796B2 (en) * 2010-03-08 2014-10-22 新日鐵住金ステンレス株式会社 Ferritic stainless steel with excellent corrosion resistance in condensed water environment generated from hydrocarbon combustion exhaust gas
KR20120132691A (en) 2010-04-29 2012-12-07 오또꿈뿌 오와이제이 Method for manufacturing and utilizing ferritic-austenitic stainless steel with high formability
FI122657B (en) 2010-04-29 2012-05-15 Outokumpu Oy Process for producing and utilizing high formability ferrite-austenitic stainless steel
DE102012100908A1 (en) * 2012-02-03 2013-08-08 Klaus Kuhn Edelstahlgiesserei Gmbh Duplex steel with improved notched impact strength and machinability
JP5869922B2 (en) * 2012-03-09 2016-02-24 新日鐵住金ステンレス株式会社 Ferrite-austenitic duplex stainless steel sheet with small in-plane anisotropy and method for producing the same
SE536835C2 (en) * 2012-10-05 2014-09-30 Sandvik Intellectual Property An overhead line for electric power
FI125734B (en) 2013-06-13 2016-01-29 Outokumpu Oy Duplex ferritic austenitic stainless steel
TWI490343B (en) * 2013-07-04 2015-07-01 China Steel Corp Austenitic alloy plate and method of making the same
CN103667950A (en) * 2013-12-05 2014-03-26 宁波宝新不锈钢有限公司 430 stainless steel for cold stamping processing, and manufacturing method thereof
FI125466B (en) * 2014-02-03 2015-10-15 Outokumpu Oy DUPLEX STAINLESS STEEL
FI126577B (en) 2014-06-17 2017-02-28 Outokumpu Oy DOUBLE STAINLESS STEEL
KR101668532B1 (en) * 2014-12-26 2016-10-24 주식회사 포스코 Super duplex stainless steel with excellent yield strength and imfact toughness, and menufacturing method thereof
WO2016105145A1 (en) * 2014-12-26 2016-06-30 (주)포스코 Lean duplex stainless steel and method for producing same
KR101668535B1 (en) * 2014-12-26 2016-10-24 주식회사 포스코 Ferritic stainless steel
WO2017073422A1 (en) * 2015-10-30 2017-05-04 株式会社日立製作所 Dispersion strengthened austenitic stainless steel, method for manufacturing stainless steel and product made from stainless steel
WO2017141907A1 (en) 2016-02-17 2017-08-24 新日鐵住金ステンレス株式会社 Ferritic-austenitic two-phase stainless steel material and method for manufacturing same
US11142814B2 (en) 2017-01-23 2021-10-12 Jfe Steel Corporation Ferritic-austenitic duplex stainless steel sheet
JP6347864B1 (en) * 2017-03-24 2018-06-27 日新製鋼株式会社 Method for producing austenitic stainless steel slab
KR102326262B1 (en) * 2019-12-18 2021-11-15 주식회사 포스코 High yield ratio high strength austenitic stainless steel
JP7499621B2 (en) * 2020-06-23 2024-06-14 日鉄ステンレス株式会社 Duplex stainless steel sheet and method for producing the same
KR102537950B1 (en) * 2020-12-14 2023-05-31 주식회사 포스코 Austenitic stainless steel with improved high temperature softening resistance
CN114045384B (en) * 2021-11-10 2023-09-08 中国兵器科学研究院宁波分院 Method for improving low-temperature impact toughness of low-nickel ferrite-austenitic stainless steel
CN114164373B (en) * 2021-11-10 2022-11-11 中国兵器科学研究院宁波分院 Nb microalloying duplex stainless steel and preparation method thereof
KR20230166672A (en) * 2022-05-31 2023-12-07 주식회사 포스코 Austenite stainless steel and manufacturing method
CN115821153A (en) * 2022-06-27 2023-03-21 浙江吉森金属科技有限公司 Stainless steel for temperature sensor housing and manufacturing method thereof
CN114965248A (en) * 2022-06-28 2022-08-30 苏州热工研究院有限公司 Method for representing intergranular corrosion sensitivity of austenitic heat-resistant steel
KR20250025434A (en) * 2022-11-14 2025-02-21 닛테츠 스테인레스 가부시키가이샤 Ferritic-austenitic dual-phase stainless steel
JPWO2024172023A1 (en) * 2023-02-13 2024-08-22
WO2025109835A1 (en) * 2023-11-21 2025-05-30 日鉄ステンレス株式会社 Ferritic/austenitic duplex stainless steel sheet, method for manufacturing same, and brake disk rotor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02305940A (en) * 1989-05-22 1990-12-19 Nippon Steel Corp Two-phase stainless steel for building material
EP0889145A1 (en) * 1997-06-30 1999-01-07 Usinor Stainless austenoferritic steel with very low nickel content and showing high elongation under tensile load
JP2006200035A (en) * 2004-03-16 2006-08-03 Jfe Steel Kk Ferritic / austenitic stainless steel with excellent stretch formability and crevice corrosion resistance
JP2006233308A (en) * 2005-02-28 2006-09-07 Jfe Steel Kk Austenitic and ferritic stainless steel with excellent intergranular corrosion resistance
EP1715073A1 (en) * 2004-01-29 2006-10-25 JFE Steel Corporation Austenitic-ferritic stainless steel
JP2007154283A (en) * 2005-12-07 2007-06-21 Jfe Steel Kk High-strength steel sheet with excellent formability and shape freezeability

Family Cites Families (8)

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JPS6052523A (en) * 1983-09-01 1985-03-25 Nippon Stainless Steel Co Ltd Production of ferrite-austenite two-phase stainless steel
JP2789918B2 (en) 1992-03-03 1998-08-27 住友金属工業株式会社 Duplex stainless steel with excellent weather resistance
JP3463500B2 (en) 1997-02-07 2003-11-05 Ｊｆｅスチール株式会社 Ferritic stainless steel excellent in ductility and method for producing the same
US6033497A (en) * 1997-09-05 2000-03-07 Sandusky International, Inc. Pitting resistant duplex stainless steel alloy with improved machinability and method of making thereof
SE517449C2 (en) 2000-09-27 2002-06-04 Avesta Polarit Ab Publ Ferrite-austenitic stainless steel
KR100460346B1 (en) * 2002-03-25 2004-12-08 이인성 Super duplex stainless steel with a suppressed formation of intermetallic phases and having an excellent corrosion resistance, embrittlement resistance, castability and hot workability
JP4760031B2 (en) 2004-01-29 2011-08-31 Ｊｆｅスチール株式会社 Austenitic ferritic stainless steel with excellent formability
JP4760032B2 (en) 2004-01-29 2011-08-31 Ｊｆｅスチール株式会社 Austenitic ferritic stainless steel with excellent formability

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02305940A (en) * 1989-05-22 1990-12-19 Nippon Steel Corp Two-phase stainless steel for building material
EP0889145A1 (en) * 1997-06-30 1999-01-07 Usinor Stainless austenoferritic steel with very low nickel content and showing high elongation under tensile load
EP1715073A1 (en) * 2004-01-29 2006-10-25 JFE Steel Corporation Austenitic-ferritic stainless steel
JP2006200035A (en) * 2004-03-16 2006-08-03 Jfe Steel Kk Ferritic / austenitic stainless steel with excellent stretch formability and crevice corrosion resistance
JP2006233308A (en) * 2005-02-28 2006-09-07 Jfe Steel Kk Austenitic and ferritic stainless steel with excellent intergranular corrosion resistance
JP2007154283A (en) * 2005-12-07 2007-06-21 Jfe Steel Kk High-strength steel sheet with excellent formability and shape freezeability

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2009017258A1 *

Also Published As

Publication number Publication date
ES2817436T3 (en) 2021-04-07
US20130118650A1 (en) 2013-05-16
US20100126644A1 (en) 2010-05-27
KR101185978B1 (en) 2012-09-26
KR101253326B1 (en) 2013-04-11
EP3434802A1 (en) 2019-01-30
CN101765671B (en) 2012-01-11
EP2172574B1 (en) 2019-01-23
WO2009017258A1 (en) 2009-02-05
KR20120011098A (en) 2012-02-06
ES2717840T3 (en) 2019-06-25
EP2172574A1 (en) 2010-04-07
CN101765671A (en) 2010-06-30
EP3434802B1 (en) 2020-07-01
KR20100011989A (en) 2010-02-03

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