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SE545439C2 - Alumina forming austenite-ferrite stainless steel alloy - Google Patents

Alumina forming austenite-ferrite stainless steel alloy

Info

Publication number
SE545439C2
SE545439C2 SE2130152A SE2130152A SE545439C2 SE 545439 C2 SE545439 C2 SE 545439C2 SE 2130152 A SE2130152 A SE 2130152A SE 2130152 A SE2130152 A SE 2130152A SE 545439 C2 SE545439 C2 SE 545439C2
Authority
SE
Sweden
Prior art keywords
stainless steel
austenite
ferrite stainless
weight
alumina
Prior art date
Application number
SE2130152A
Other languages
Swedish (sv)
Other versions
SE2130152A1 (en
Inventor
Mats Lundberg
Thomas Helander
Original Assignee
Sandvik Materials Tech Emea Ab
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 Sandvik Materials Tech Emea Ab filed Critical Sandvik Materials Tech Emea Ab
Priority to SE2130152A priority Critical patent/SE545439C2/en
Priority to EP22816547.8A priority patent/EP4347908A4/en
Priority to CN202280036710.2A priority patent/CN119948194A/en
Priority to JP2023574327A priority patent/JP7675859B2/en
Priority to PCT/SE2022/050524 priority patent/WO2022255927A1/en
Publication of SE2130152A1 publication Critical patent/SE2130152A1/en
Publication of SE545439C2 publication Critical patent/SE545439C2/en

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
    • C22C38/06—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
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/185—Hardening; Quenching with or without subsequent tempering from an intercritical temperature
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/60—Aqueous agents
    • 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
    • C21D6/02—Hardening by precipitation
    • 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
    • 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
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • 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
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • 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
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • 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
    • C21D2211/005—Ferrite
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat Treatment Of Steel (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

The present disclosure relates to an alumina forming austenite-ferrite stainless steel alloy. The present disclosure also relates to a method of producing an alumina forming austenite-ferrite stainless steel object. Further the disclosure relates to a product and the use in the temperature range of 500 to 900°C.

Claims (9)

Claims
1. An alumina forrning austenite-ferrite Stainless steel, comprising the following composition in Weight%; Cr 11.0 to 16.0; Ni 11.5 to 15.0; Al 3.5 to 5.0; C 0.01 to 0.15; Nb 0.01 to 2.0; Mn 0.01 to 3.5; Si 0.01 to 0.8; Cu 0 to 5.5; Zr 0 to 0.3; Mo+W 0 to 3.0; Wherein Hf, Ta and Ti is considered to be fianctionally equivalent With the elements Zr and Nb and may therefore be present in the same amounts as is specified for those elements, and may, partially or totally, replace these elements; optionally one or more elements selected from the group consisting of rare earth metals (REM) to a maximum level of 0.1 Weight%; balance being Fe and norrnally occurring impurities; and Wherein the austenitic-ferritic stainless steel has a microstructure comprising of ferrite Which is more than 15 volume% and less than 45 volume% and the remainder being austenite.
2. The austenite-ferrite stainless steel alloy according to claim 1, Wherein the composition comprises Cu 0.5 to 5.5 in Weight%.
3. The austenite-ferrite stainless steel alloy according to claims 1 or 2, Wherein the composition comprises Zr 0.05 to 0.3 in Weight%.
4. The austenite-ferrite stainless steel alloy according to any one of claims 1 to 3, Wherein the composition comprises Nb 0.05 to 1.6 Weight%.
5. A method of producing an austenite-ferrite stainless steel object, said method comprising the following steps; a) providing an alumina forrning austenite-ferrite stainless steel melt having a composition according to any one of claims 1 to 4; b) Cooling the alumina forrning austenite-ferrite Stainless steel melt to a solid body; c) hot working said solid body at temperatures between above 1000 to 1300°C to a work piece of predeterrnined shape; d) heat treating said work piece at a temperature in the range of between l050°C to l200°C for a time of about 2 to 120 minutes; e) quenching the heat-treated work piece down to approximately room temperature. The method according to claim 5, further comprising a cold working step after the hot working step c). . The method according to claims 5 and 6, further comprising an aging step after the quenching step e). . An object comprising the alumina forrning austenite-ferrite stainless steel according to any one of claims l to 4 or manufactured according to any one of claims l to . Use of the object according to claim 8, in applications in which said product is subjected to a temperature in the range of 500-900°C.
SE2130152A 2021-06-01 2021-06-01 Alumina forming austenite-ferrite stainless steel alloy SE545439C2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE2130152A SE545439C2 (en) 2021-06-01 2021-06-01 Alumina forming austenite-ferrite stainless steel alloy
EP22816547.8A EP4347908A4 (en) 2021-06-01 2022-05-31 AUSTENITE-FERRITE STAINLESS STEEL ALLOY FORMING ALUMINUM
CN202280036710.2A CN119948194A (en) 2021-06-01 2022-05-31 Alumina forming austenitic-ferritic stainless steel alloy
JP2023574327A JP7675859B2 (en) 2021-06-01 2022-05-31 Alumina-forming austenitic-ferritic stainless steel alloys
PCT/SE2022/050524 WO2022255927A1 (en) 2021-06-01 2022-05-31 Alumina forming austenite-ferrite stainless steel alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2130152A SE545439C2 (en) 2021-06-01 2021-06-01 Alumina forming austenite-ferrite stainless steel alloy

Publications (2)

Publication Number Publication Date
SE2130152A1 SE2130152A1 (en) 2022-12-02
SE545439C2 true SE545439C2 (en) 2023-09-12

Family

ID=84323498

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2130152A SE545439C2 (en) 2021-06-01 2021-06-01 Alumina forming austenite-ferrite stainless steel alloy

Country Status (5)

Country Link
EP (1) EP4347908A4 (en)
JP (1) JP7675859B2 (en)
CN (1) CN119948194A (en)
SE (1) SE545439C2 (en)
WO (1) WO2022255927A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4204862A (en) * 1975-10-29 1980-05-27 Nippon Steel Corporation Austenitic heat-resistant steel which forms Al2 O3 film in high-temperature oxidizing atmosphere
JPH09241810A (en) * 1996-03-08 1997-09-16 Nkk Corp Welded structure Austenitic stainless steel for high temperature equipment
JPH09263906A (en) * 1996-01-23 1997-10-07 Hitachi Metals Ltd Iron-nickel-chrome-alum. ferritic alloy and its production
JPH10158793A (en) * 1996-12-06 1998-06-16 Hitachi Metals Ltd Member for cutting tool and its production
US6663984B2 (en) * 2001-07-10 2003-12-16 Zakrytoe Aktsionerone Obschestvo “Transkom” Clad steel rolled section for reinforcing concrete and method of production

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS524417A (en) * 1975-06-30 1977-01-13 Mazda Motor Corp Two phase stainless steel having excellent oxidation resistance and me chanical properties at high temperature and good weldability
JPS5928621B2 (en) * 1976-05-25 1984-07-14 新日本製鐵株式会社 Duplex stainless steel with excellent hot workability
JPS5331517A (en) * 1976-09-04 1978-03-24 Mazda Motor Corp Two-phase stain less steel
US7754144B2 (en) * 2007-01-04 2010-07-13 Ut-Battelle, Llc High Nb, Ta, and Al creep- and oxidation-resistant austenitic stainless steel
CN101906595B (en) * 2010-07-16 2012-02-15 北京科技大学 Austenitic heat-resistant stainless steel with spontaneous formation of Al2O3 protective layer
US8431072B2 (en) * 2011-05-24 2013-04-30 Ut-Battelle, Llc Cast alumina forming austenitic stainless steels
FI125734B (en) * 2013-06-13 2016-01-29 Outokumpu Oy Duplex ferritic austenitic stainless steel
SE1430130A1 (en) * 2014-09-14 2016-03-15 Blykalla Reaktorer Ab A steel for a lead cold reactor
JP6580245B2 (en) * 2016-02-17 2019-09-25 日鉄ステンレス株式会社 Ferritic-austenitic duplex stainless steel and its manufacturing method
US11649517B2 (en) * 2016-10-21 2023-05-16 Korea Advanced Institute Of Science And Technology High-strength Fe—Cr—Ni—Al multiplex stainless steel and manufacturing method therefor
KR101833404B1 (en) * 2017-08-04 2018-02-28 한국과학기술원 High strength Fe―Cr―Ni―Al multiplex stainless steels and method of making
KR101779128B1 (en) * 2016-10-21 2017-09-19 한국과학기술원 Alumina-forming duplex stainless steels as accident resistant fuel cladding materials for light water reactors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4204862A (en) * 1975-10-29 1980-05-27 Nippon Steel Corporation Austenitic heat-resistant steel which forms Al2 O3 film in high-temperature oxidizing atmosphere
JPH09263906A (en) * 1996-01-23 1997-10-07 Hitachi Metals Ltd Iron-nickel-chrome-alum. ferritic alloy and its production
JPH09241810A (en) * 1996-03-08 1997-09-16 Nkk Corp Welded structure Austenitic stainless steel for high temperature equipment
JPH10158793A (en) * 1996-12-06 1998-06-16 Hitachi Metals Ltd Member for cutting tool and its production
US6663984B2 (en) * 2001-07-10 2003-12-16 Zakrytoe Aktsionerone Obschestvo “Transkom” Clad steel rolled section for reinforcing concrete and method of production

Also Published As

Publication number Publication date
EP4347908A1 (en) 2024-04-10
JP7675859B2 (en) 2025-05-13
WO2022255927A1 (en) 2022-12-08
SE2130152A1 (en) 2022-12-02
CN119948194A (en) 2025-05-06
JP2024521893A (en) 2024-06-04
EP4347908A4 (en) 2025-12-17

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