EP1561834A4 - Duplex stainless steel and method for production thereof - Google Patents

Duplex stainless steel and method for production thereof

Info

Publication number
EP1561834A4
EP1561834A4 EP04748203A EP04748203A EP1561834A4 EP 1561834 A4 EP1561834 A4 EP 1561834A4 EP 04748203 A EP04748203 A EP 04748203A EP 04748203 A EP04748203 A EP 04748203A EP 1561834 A4 EP1561834 A4 EP 1561834A4
Authority
EP
European Patent Office
Prior art keywords
production
stainless steel
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.)
Granted
Application number
EP04748203A
Other languages
German (de)
French (fr)
Other versions
EP1561834B1 (en
EP1561834A1 (en
Inventor
Tomohiko Omura
Satoshi Matsumoto
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
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Publication of EP1561834A1 publication Critical patent/EP1561834A1/en
Publication of EP1561834A4 publication Critical patent/EP1561834A4/en
Application granted granted Critical
Publication of EP1561834B1 publication Critical patent/EP1561834B1/en
Expired - Fee Related 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
    • C22C38/18—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
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/064—Dephosphorising; Desulfurising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0087—Treatment of slags covering the steel bath, e.g. for separating slag from the molten metal
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/06—Deoxidising, e.g. killing
    • 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
    • C22C38/02—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
    • C22C38/18—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
EP04748203A 2003-08-07 2004-08-03 Duplex stainless steel and method for production thereof Expired - Fee Related EP1561834B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2003289418 2003-08-07
JP2003289418 2003-08-07
PCT/JP2004/011070 WO2005014872A1 (en) 2003-08-07 2004-08-03 Duplex stainless steel and method for production thereof

Publications (3)

Publication Number Publication Date
EP1561834A1 EP1561834A1 (en) 2005-08-10
EP1561834A4 true EP1561834A4 (en) 2007-07-11
EP1561834B1 EP1561834B1 (en) 2011-04-20

Family

ID=34131558

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04748203A Expired - Fee Related EP1561834B1 (en) 2003-08-07 2004-08-03 Duplex stainless steel and method for production thereof

Country Status (8)

Country Link
EP (1) EP1561834B1 (en)
JP (1) JP4155300B2 (en)
KR (1) KR100661328B1 (en)
CN (1) CN100427627C (en)
AU (1) AU2004262702B2 (en)
BR (1) BRPI0406423B1 (en)
NO (1) NO336117B1 (en)
WO (1) WO2005014872A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7662885B2 (en) 2002-08-12 2010-02-16 Exxonmobil Chemical Patents Inc. Method to make an article comprising polymer concentrate
US8192813B2 (en) 2003-08-12 2012-06-05 Exxonmobil Chemical Patents, Inc. Crosslinked polyethylene articles and processes to produce same
CN102031461A (en) * 2010-10-22 2011-04-27 重庆仪表材料研究所 Heat-resisting alloy with high yield ratio, high toughness and long-run elasticity stability
WO2012102330A1 (en) * 2011-01-27 2012-08-02 新日鐵住金ステンレス株式会社 Alloying element-saving hot rolled duplex stainless steel material, clad steel sheet having duplex stainless steel as mating material therefor, and production method for same
ES2632008T3 (en) 2011-03-10 2017-09-07 Nippon Steel & Sumitomo Metal Corporation Duplex stainless steel
FI126574B (en) 2011-09-07 2017-02-28 Outokumpu Oy Duplex stainless steel
CN104919072B (en) 2013-01-15 2017-07-14 株式会社神户制钢所 Two phase stainless steel steel and two phase stainless steel steel pipe
JP6302793B2 (en) * 2013-09-11 2018-03-28 株式会社神戸製鋼所 Duplex stainless steel and duplex stainless steel pipe
JP6200851B2 (en) * 2013-11-05 2017-09-20 株式会社神戸製鋼所 Duplex stainless steel and duplex stainless steel pipe
FI125466B (en) * 2014-02-03 2015-10-15 Outokumpu Oy DOUBLE STAINLESS STEEL
FI126577B (en) 2014-06-17 2017-02-28 Outokumpu Oy DOUBLE STAINLESS STEEL
JP6303851B2 (en) * 2014-06-18 2018-04-04 新日鐵住金株式会社 Duplex stainless steel pipe
KR101668534B1 (en) * 2014-12-26 2016-10-24 주식회사 포스코 Super duplex stainless steel and manufacturing method thereof
PL3333275T3 (en) * 2016-12-07 2021-05-17 Höganäs Ab (Publ) Stainless steel powder for producing sintered duplex stainless steel
CN111349847B (en) * 2018-12-24 2022-03-18 宝山钢铁股份有限公司 Seawater corrosion resistant steel and manufacturing method thereof
WO2021172376A1 (en) * 2020-02-27 2021-09-02 日鉄ステンレス株式会社 Stainless steel exhibiting superior mirror polishability, and production method therefor
CN115244199B (en) * 2020-02-27 2023-10-20 日铁不锈钢株式会社 Stainless steel, stainless steel material, and method for producing stainless steel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545753A1 (en) * 1991-11-11 1993-06-09 Sumitomo Metal Industries, Ltd. Duplex stainless steel having improved strength and corrosion resistance
EP0757112A1 (en) * 1994-04-05 1997-02-05 Sumitomo Metal Industries, Ltd. Two-phase stainless steel
JPH11293412A (en) * 1998-04-08 1999-10-26 Pacific Metals Co Ltd Austenitic stainless steel excellent in hot workability
US6048413A (en) * 1994-05-21 2000-04-11 Park; Yong Soo Duplex stainless steel with high corrosion resistance
WO2003044237A1 (en) * 2001-11-22 2003-05-30 Nippon Yakin Kogyo Co., Ltd. Stainless steel for use under circumstance where organic acid and saline are present

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07197205A (en) * 1993-12-29 1995-08-01 Nkk Corp Austenitic stainless steel sheet and its production
JPH08170153A (en) * 1994-12-19 1996-07-02 Sumitomo Metal Ind Ltd Highly corrosion resistant two phase stainless steel
JP3127822B2 (en) * 1996-04-10 2001-01-29 住友金属工業株式会社 Manufacturing method of seamless stainless steel pipe made of duplex stainless steel
JPH1060526A (en) * 1996-08-19 1998-03-03 Nkk Corp Production of seawater resistant precipitation strengthening type duplex stainless steel
JPH1060598A (en) * 1996-08-19 1998-03-03 Nkk Corp Seawater resistant precipitation strengthening type duplex stainless steel
JP3624732B2 (en) * 1998-01-30 2005-03-02 住友金属工業株式会社 Ferritic stainless steel and ferritic stainless steel casts with excellent formability
JP3446667B2 (en) * 1999-07-07 2003-09-16 住友金属工業株式会社 Ferritic stainless steel, ferritic stainless steel ingot excellent in workability and toughness, and method for producing the same
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
JP2002194505A (en) * 2000-12-22 2002-07-10 Sumitomo Metal Ind Ltd Ferrite stainless steel and its production method of the same
JP3758508B2 (en) * 2001-02-13 2006-03-22 住友金属工業株式会社 Manufacturing method of duplex stainless steel pipe
JP3939534B2 (en) * 2001-11-08 2007-07-04 新日鐵住金ステンレス株式会社 Duplex stainless steel sheet and manufacturing method thereof
JP4080729B2 (en) * 2001-11-22 2008-04-23 日本冶金工業株式会社 Stainless steel for food plant

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545753A1 (en) * 1991-11-11 1993-06-09 Sumitomo Metal Industries, Ltd. Duplex stainless steel having improved strength and corrosion resistance
EP0757112A1 (en) * 1994-04-05 1997-02-05 Sumitomo Metal Industries, Ltd. Two-phase stainless steel
US6048413A (en) * 1994-05-21 2000-04-11 Park; Yong Soo Duplex stainless steel with high corrosion resistance
JPH11293412A (en) * 1998-04-08 1999-10-26 Pacific Metals Co Ltd Austenitic stainless steel excellent in hot workability
WO2003044237A1 (en) * 2001-11-22 2003-05-30 Nippon Yakin Kogyo Co., Ltd. Stainless steel for use under circumstance where organic acid and saline are present
US20050016636A1 (en) * 2001-11-22 2005-01-27 Yutaka Kobayashi Stainless steel for use under circumstance where organic acid and saline are present

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2005014872A1 *

Also Published As

Publication number Publication date
CN100427627C (en) 2008-10-22
CN1701126A (en) 2005-11-23
BRPI0406423A (en) 2005-10-04
BRPI0406423B1 (en) 2012-12-11
NO336117B1 (en) 2015-05-18
AU2004262702A1 (en) 2005-02-17
EP1561834B1 (en) 2011-04-20
NO20052266L (en) 2005-07-06
EP1561834A1 (en) 2005-08-10
KR100661328B1 (en) 2006-12-27
JP4155300B2 (en) 2008-09-24
NO20052266D0 (en) 2005-05-10
KR20060024316A (en) 2006-03-16
AU2004262702B2 (en) 2007-05-03
JPWO2005014872A1 (en) 2006-10-05
WO2005014872A1 (en) 2005-02-17

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