FI125854B - Dupleksi ruostumaton teräs - Google Patents

Dupleksi ruostumaton teräs Download PDF

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Publication number
FI125854B
FI125854B FI20110384A FI20110384A FI125854B FI 125854 B FI125854 B FI 125854B FI 20110384 A FI20110384 A FI 20110384A FI 20110384 A FI20110384 A FI 20110384A FI 125854 B FI125854 B FI 125854B
Authority
FI
Finland
Prior art keywords
weight
less
tilavuus
stainless steel
duplex stainless
Prior art date
Application number
FI20110384A
Other languages
English (en)
Swedish (sv)
Other versions
FI20110384A (fi
Inventor
Mats Liljas
Jan-Olof Andersson
Jan Y Jonsson
Alexander Thulin
Rachel Pettersson
Staffan Hertzman
Original Assignee
Outokumpu Oy
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 Outokumpu Oy filed Critical Outokumpu Oy
Priority to FI20110384A priority Critical patent/FI125854B/fi
Priority to US14/355,866 priority patent/US9637813B2/en
Priority to JP2014539373A priority patent/JP5870201B2/ja
Priority to IN821MUN2014 priority patent/IN2014MN00821A/en
Priority to CN201280060094.0A priority patent/CN103975088B/zh
Priority to PCT/FI2012/051065 priority patent/WO2013064746A1/en
Priority to EP12846399.9A priority patent/EP2773785B1/en
Priority to TW101140703A priority patent/TWI546391B/zh
Publication of FI20110384A publication Critical patent/FI20110384A/fi
Application granted granted Critical
Publication of FI125854B publication Critical patent/FI125854B/fi

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
    • 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
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • 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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing 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
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Lubricants (AREA)

Abstract

The present invention relates to duplex ferritic austenitic stainless steel for the use chemical industry for nitric acid environments wherein good uniform corrosion resistance and high strength are required. The microstructure of the stainless steel has 35-65 volume % of ferrite, preferably 45-55 volume % of ferrite, the balance being austenite. The chemical composition contains less than 0,03 weight % carbon, less than 1 weight % silicon, less than 3 weight % manganese, 26-29,5 weight % chromium, 5-8,5 weight % nickel, 1-3 weight % molybdenum, 0,25-0,35 weight % nitrogen, 1-3 weight % copper, the rest being iron and inevitable impurities occurring in stainless steels.
FI20110384A 2011-11-04 2011-11-04 Dupleksi ruostumaton teräs FI125854B (fi)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FI20110384A FI125854B (fi) 2011-11-04 2011-11-04 Dupleksi ruostumaton teräs
US14/355,866 US9637813B2 (en) 2011-11-04 2012-11-01 Duplex stainless steel
JP2014539373A JP5870201B2 (ja) 2011-11-04 2012-11-01 二相ステンレス鋼
IN821MUN2014 IN2014MN00821A (fi) 2011-11-04 2012-11-01
CN201280060094.0A CN103975088B (zh) 2011-11-04 2012-11-01 双相不锈钢
PCT/FI2012/051065 WO2013064746A1 (en) 2011-11-04 2012-11-01 Duplex stainless steel
EP12846399.9A EP2773785B1 (en) 2011-11-04 2012-11-01 Duplex stainless steel
TW101140703A TWI546391B (zh) 2011-11-04 2012-11-02 雙相不銹鋼

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20110384A FI125854B (fi) 2011-11-04 2011-11-04 Dupleksi ruostumaton teräs

Publications (2)

Publication Number Publication Date
FI20110384A FI20110384A (fi) 2013-05-05
FI125854B true FI125854B (fi) 2016-03-15

Family

ID=48191429

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20110384A FI125854B (fi) 2011-11-04 2011-11-04 Dupleksi ruostumaton teräs

Country Status (8)

Country Link
US (1) US9637813B2 (fi)
EP (1) EP2773785B1 (fi)
JP (1) JP5870201B2 (fi)
CN (1) CN103975088B (fi)
FI (1) FI125854B (fi)
IN (1) IN2014MN00821A (fi)
TW (1) TWI546391B (fi)
WO (1) WO2013064746A1 (fi)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AP2016009298A0 (en) * 2013-12-27 2016-06-30 Stamicarbon Corrosion resistant duplex steel alloy, objects made thereof, and method of making the alloy
CN105899706A (zh) * 2013-12-27 2016-08-24 山特维克知识产权股份有限公司 耐蚀性二联钢合金，由其制成的物体和制造该合金的方法
WO2015109553A1 (zh) * 2014-01-25 2015-07-30 吴津宁 一种双相不锈钢无缝钢管
GB2545768B (en) * 2015-12-23 2018-04-25 Goodwin Plc A steel, a cast, forged or wrought product and a welded product
WO2018114867A1 (en) * 2016-12-21 2018-06-28 Sandvik Intellectual Property Ab Use of a duplex stainless steel object
KR101867734B1 (ko) * 2016-12-23 2018-06-14 주식회사 포스코 내식성이 우수한 듀플렉스 스테인리스 강 및 그 제조방법
RU2693718C2 (ru) * 2017-06-16 2019-07-04 Акционерное общество "Научно-производственное объединение "Центральный научно-исследовательский институт технологии машиностроения" АО "НПО "ЦНИИТМАШ" Дуплексная нержавеющая сталь для производства запорной и регулирующей арматуры
EP3502293B1 (en) * 2017-12-22 2020-05-13 Saipem S.p.A. Uses of duplex stainless steels
EP3502294A1 (en) * 2017-12-22 2019-06-26 Tubacex Innovación A.I.E. Duplex stainless steel resistant to corrosion
CN111742075B (zh) * 2018-02-15 2022-07-08 山特维克知识产权股份有限公司 新型双相不锈钢
EP3987074A1 (en) * 2019-06-24 2022-04-27 AB Sandvik Materials Technology A laying head pipe
SE1950909A1 (en) * 2019-07-31 2021-02-01 Ferritico Ab Duplex steel with improved embrittlement properties and method of producing such
KR20210028382A (ko) 2019-09-04 2021-03-12 주식회사 포스코 충격인성 및 열간가공성이 우수한 고내식 오스테나이트계 스테인리스강
CN112195418B (zh) * 2020-09-29 2022-03-18 中国科学院金属研究所 一种微纳米晶马氏体时效不锈钢及其制备方法
KR102522863B1 (ko) 2020-11-18 2023-04-17 주식회사 포스코 스테인리스강 및 그 제조 방법
CN112553533B (zh) * 2020-12-25 2022-05-10 宝钢德盛不锈钢有限公司 一种经济性高强度奥氏体不锈钢
CN114410938B (zh) * 2022-01-19 2023-04-28 山西太钢不锈钢股份有限公司 一种提高s32205系双相不锈钢强度的方法
CN114952191B (zh) * 2022-06-01 2023-08-04 昆明理工大学 一种高镍含氮双相不锈钢的高性能焊接热影响区热加工方法
CN115652189B (zh) * 2022-08-23 2023-10-24 云南化铸科技有限责任公司 一种耐高温浓硫酸双相合金及其分酸器

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JP5072285B2 (ja) * 2006-08-08 2012-11-14 新日鐵住金ステンレス株式会社 二相ステンレス鋼
MX355893B (es) * 2011-02-14 2018-05-04 Nippon Steel & Sumitomo Metal Corp Junta soldada de acero inoxidable dúplex.

Also Published As

Publication number Publication date
TW201323629A (zh) 2013-06-16
US9637813B2 (en) 2017-05-02
US20150050180A1 (en) 2015-02-19
WO2013064746A1 (en) 2013-05-10
TWI546391B (zh) 2016-08-21
IN2014MN00821A (fi) 2015-07-03
JP2014532811A (ja) 2014-12-08
EP2773785A1 (en) 2014-09-10
EP2773785A4 (en) 2015-07-08
JP5870201B2 (ja) 2016-02-24
CN103975088B (zh) 2016-08-24
EP2773785B1 (en) 2021-04-07
FI20110384A (fi) 2013-05-05
CN103975088A (zh) 2014-08-06

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