EP2476771A4 - Two-phase stainless steel - Google Patents

Two-phase stainless steel

Info

Publication number
EP2476771A4
EP2476771A4 EP10815306.5A EP10815306A EP2476771A4 EP 2476771 A4 EP2476771 A4 EP 2476771A4 EP 10815306 A EP10815306 A EP 10815306A EP 2476771 A4 EP2476771 A4 EP 2476771A4
Authority
EP
European Patent Office
Prior art keywords
stainless steel
phase stainless
phase
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
EP10815306.5A
Other languages
German (de)
French (fr)
Other versions
EP2476771B1 (en
EP2476771A1 (en
Inventor
Hisashi Amaya
Hideki Takabe
Kazuhiro Ogawa
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
Priority to EP15156371.5A priority Critical patent/EP2902525B1/en
Publication of EP2476771A1 publication Critical patent/EP2476771A1/en
Publication of EP2476771A4 publication Critical patent/EP2476771A4/en
Application granted granted Critical
Publication of EP2476771B1 publication Critical patent/EP2476771B1/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
    • C22C38/18—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
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • 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
    • C22C38/18—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
EP10815306.5A 2009-09-10 2010-09-01 Two-phase stainless steel Active EP2476771B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15156371.5A EP2902525B1 (en) 2009-09-10 2010-09-01 Duplex stainless steel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009209160 2009-09-10
PCT/JP2010/064953 WO2011030709A1 (en) 2009-09-10 2010-09-01 Two-phase stainless steel

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP15156371.5A Division EP2902525B1 (en) 2009-09-10 2010-09-01 Duplex stainless steel

Publications (3)

Publication Number Publication Date
EP2476771A1 EP2476771A1 (en) 2012-07-18
EP2476771A4 true EP2476771A4 (en) 2014-07-23
EP2476771B1 EP2476771B1 (en) 2015-03-04

Family

ID=43732382

Family Applications (2)

Application Number Title Priority Date Filing Date
EP15156371.5A Active EP2902525B1 (en) 2009-09-10 2010-09-01 Duplex stainless steel
EP10815306.5A Active EP2476771B1 (en) 2009-09-10 2010-09-01 Two-phase stainless steel

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP15156371.5A Active EP2902525B1 (en) 2009-09-10 2010-09-01 Duplex stainless steel

Country Status (10)

Country Link
US (1) US20120177529A1 (en)
EP (2) EP2902525B1 (en)
JP (1) JP4640536B1 (en)
CN (1) CN102482746B (en)
AU (1) AU2010293591B2 (en)
BR (1) BR112012005005B1 (en)
CA (1) CA2770378C (en)
IN (1) IN2012DN01250A (en)
MX (2) MX2012002870A (en)
WO (1) WO2011030709A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5229425B2 (en) * 2011-02-14 2013-07-03 新日鐵住金株式会社 Duplex stainless steel and manufacturing method thereof
CA2826893C (en) * 2011-02-14 2016-06-07 Nippon Steel & Sumitomo Metal Corporation Duplex stainless steel
MX362881B (en) * 2011-09-06 2019-02-20 Nippon Steel & Sumitomo Metal Corp Two-phase stainless steel.
EP2832487B1 (en) * 2012-03-30 2019-01-09 Nippon Steel & Sumitomo Metal Corporation Process for producing welded joint
CN103014549B (en) * 2012-12-26 2015-11-18 振石集团东方特钢股份有限公司 A kind of high-performance diphase stainless steel and working method thereof
CN103602915B (en) * 2013-11-22 2015-11-18 山东建筑大学 High carbon and chromium duplex 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
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
CN107829029B (en) * 2017-11-10 2020-02-07 洛阳双瑞特种装备有限公司 Smelting process method of ZG022Cr22Ni5Mo3N material duplex stainless steel
CN115584443A (en) * 2021-07-05 2023-01-10 中国石油天然气集团有限公司 Copper-containing antibacterial duplex stainless steel continuous tube and processing method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55158256A (en) * 1979-05-29 1980-12-09 Daido Steel Co Ltd Ferritic-austenitic two-phase stainless steel
GB2166159A (en) * 1983-01-05 1986-04-30 Carpenter Technology Corp Method of enhancing intergranular corrosion resistance of a weld of the stainless duplex ferritic austenitic steel
EP0261345A1 (en) * 1986-08-29 1988-03-30 SANDUSKY FOUNDRY & MACHINE Co. Pitting resistant duplex stainless steel alloy
US4816085A (en) * 1987-08-14 1989-03-28 Haynes International, Inc. Tough weldable duplex stainless steel wire
JP2000313940A (en) * 1999-04-27 2000-11-14 Sumitomo Metal Ind Ltd Duplex stainless steel material and its manufacture
WO2001000898A1 (en) * 1999-06-29 2001-01-04 Sandvik Ab; (Publ) Duplex stainless steel

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4604887A (en) * 1984-11-30 1986-08-12 Kawasaki Steel Corporation Duplex stainless steel seamless pipe and a method for producing the same
JP3155431B2 (en) * 1994-10-26 2001-04-09 株式会社安来製作所 Duplex stainless cast member and method of manufacturing the same
KR100216683B1 (en) * 1994-12-16 1999-09-01 고지마 마타오 Duplex stainless steel excellent in corrosion resistance
JPH1060598A (en) * 1996-08-19 1998-03-03 Nkk Corp Seawater resistant precipitation strengthening type duplex stainless steel
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
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
JP2004277767A (en) * 2003-03-13 2004-10-07 Nisshin Steel Co Ltd Austenitic stainless steel for automotive oil filler pipe and fuel tank, and automotive oil filler pipe and fuel tank
JP4915121B2 (en) * 2006-03-31 2012-04-11 住友金属工業株式会社 Manufacturing method of duplex stainless steel seamless pipe
JP5072285B2 (en) * 2006-08-08 2012-11-14 新日鐵住金ステンレス株式会社 Duplex stainless steel
JP5171197B2 (en) * 2007-10-10 2013-03-27 新日鐵住金ステンレス株式会社 Duplex stainless steel wire for high strength and high corrosion resistance bolts excellent in cold forgeability, steel wire and bolt, and method for producing the same
CA2826893C (en) * 2011-02-14 2016-06-07 Nippon Steel & Sumitomo Metal Corporation Duplex stainless steel
JP5229425B2 (en) * 2011-02-14 2013-07-03 新日鐵住金株式会社 Duplex stainless steel and manufacturing method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55158256A (en) * 1979-05-29 1980-12-09 Daido Steel Co Ltd Ferritic-austenitic two-phase stainless steel
GB2166159A (en) * 1983-01-05 1986-04-30 Carpenter Technology Corp Method of enhancing intergranular corrosion resistance of a weld of the stainless duplex ferritic austenitic steel
EP0261345A1 (en) * 1986-08-29 1988-03-30 SANDUSKY FOUNDRY & MACHINE Co. Pitting resistant duplex stainless steel alloy
US4816085A (en) * 1987-08-14 1989-03-28 Haynes International, Inc. Tough weldable duplex stainless steel wire
JP2000313940A (en) * 1999-04-27 2000-11-14 Sumitomo Metal Ind Ltd Duplex stainless steel material and its manufacture
WO2001000898A1 (en) * 1999-06-29 2001-01-04 Sandvik Ab; (Publ) Duplex stainless steel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2011030709A1 *

Also Published As

Publication number Publication date
IN2012DN01250A (en) 2015-05-15
JP4640536B1 (en) 2011-03-02
CN102482746A (en) 2012-05-30
EP2902525B1 (en) 2016-05-11
JPWO2011030709A1 (en) 2013-02-07
EP2476771B1 (en) 2015-03-04
CN102482746B (en) 2016-06-22
BR112012005005B1 (en) 2023-01-24
MX352395B (en) 2017-11-22
WO2011030709A1 (en) 2011-03-17
AU2010293591A1 (en) 2012-03-01
MX2012002870A (en) 2012-04-20
EP2476771A1 (en) 2012-07-18
CA2770378A1 (en) 2011-03-17
BR112012005005A2 (en) 2016-05-03
EP2902525A1 (en) 2015-08-05
US20120177529A1 (en) 2012-07-12
AU2010293591B2 (en) 2013-01-17
CA2770378C (en) 2014-02-18

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