EP4234744A8 - Cast iron-based austenite creep-resistant steel, and preparation method and use therefor - Google Patents

Cast iron-based austenite creep-resistant steel, and preparation method and use therefor Download PDF

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Publication number
EP4234744A8
EP4234744A8 EP22871096.8A EP22871096A EP4234744A8 EP 4234744 A8 EP4234744 A8 EP 4234744A8 EP 22871096 A EP22871096 A EP 22871096A EP 4234744 A8 EP4234744 A8 EP 4234744A8
Authority
EP
European Patent Office
Prior art keywords
creep
resistant steel
austenitic
preparation
cast iron
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.)
Pending
Application number
EP22871096.8A
Other languages
German (de)
French (fr)
Other versions
EP4234744A1 (en
Inventor
Yinjie WANG
Gaoquan GONG
Xiaohua Chen
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.)
Kehua Holdings Co Ltd
Original Assignee
Kehua Holdings Co 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 Kehua Holdings Co Ltd filed Critical Kehua Holdings Co Ltd
Publication of EP4234744A1 publication Critical patent/EP4234744A1/en
Publication of EP4234744A8 publication Critical patent/EP4234744A8/en
Pending legal-status Critical Current

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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/005—Selecting particular materials
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making 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
    • C22C38/04—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
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • C22C38/44—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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/16—Selection of particular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/40—Application in turbochargers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/10—Stators
    • F05D2240/14—Casings or housings protecting or supporting assemblies within
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/17—Alloys
    • F05D2300/171—Steel alloys

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

The present invention belongs to the technical field of austenitic creep-resistant steel, in particular to a cast iron-based austenitic creep-resistant steel and preparation method and application thereof. The austenitic creep-resistant steel according to the present invention comprises, by mass percentage, the following components: C: 0.2 to 0.5; Si: 0.5 to 2.0; Mn<0.5; Cr: 20 to 28; Ni: 8 to 13; P≤0.04; S≤3; W: 0.5 to 2; N: 0.2 to 0.4; with the balance being iron and other unavoidable impurities. The austenitic creep-resistant steel prepared according to the present invention suppresses the high-temperature ferrite phase and thus eliminating the defects of precipitated nitrogen porosity, reduces the processing cost of castings as compared with the ordinary Cr-Ni-based austenitic heat-resistant steel by optimizing the range of addition of nitrogen and carbon elements, and offers excellent mechanical properties at high temperature and long creep fracture time.
EP22871096.8A 2022-01-11 2022-11-15 Cast iron-based austenite creep-resistant steel, and preparation method and use therefor Pending EP4234744A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210024961.0A CN114086077B (en) 2022-01-11 2022-01-11 Cast iron-based austenite creep-resistant steel and preparation method and application thereof
PCT/CN2022/131885 WO2023134292A1 (en) 2022-01-11 2022-11-15 Cast iron-based austenite creep-resistant steel, and preparation method and use therefor

Publications (2)

Publication Number Publication Date
EP4234744A1 EP4234744A1 (en) 2023-08-30
EP4234744A8 true EP4234744A8 (en) 2023-10-18

Family

ID=80308621

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22871096.8A Pending EP4234744A1 (en) 2022-01-11 2022-11-15 Cast iron-based austenite creep-resistant steel, and preparation method and use therefor

Country Status (3)

Country Link
EP (1) EP4234744A1 (en)
CN (1) CN114086077B (en)
WO (1) WO2023134292A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114086077B (en) * 2022-01-11 2022-05-20 科华控股股份有限公司 Cast iron-based austenite creep-resistant steel and preparation method and application thereof
CN114807769B (en) * 2022-06-23 2022-10-25 科华控股股份有限公司 Double-phase heat-resistant steel with controllable TCP phase distribution and application thereof
CN115637393A (en) * 2022-10-28 2023-01-24 鞍钢集团矿业有限公司 Austenitic heat-resistant steel for chain grate link and preparation method thereof
CN117512474B (en) * 2023-10-24 2024-05-07 四川大学 Fe-based shielding alloy for structure/function integrated nuclear radiation protection and preparation method thereof

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3969109A (en) * 1974-08-12 1976-07-13 Armco Steel Corporation Oxidation and sulfidation resistant austenitic stainless steel
JPS54128922A (en) * 1978-03-22 1979-10-05 Hitachi Metals Ltd Heat resistant cast steel excellent in high temperature strength
JP4985941B2 (en) * 2004-04-19 2012-07-25 日立金属株式会社 High Cr high Ni austenitic heat-resistant cast steel and exhaust system parts comprising the same
CN101946018B (en) * 2008-02-22 2013-01-16 日立金属株式会社 Austenitic heat-resistant cast steel and exhaust system components made therefrom
RU2511158C2 (en) * 2010-06-09 2014-04-10 Сумитомо Метал Индастриз, Лтд. Pipe from austenitic stainless steel with perfect stability to steam oxidation, and method for its obtaining
KR101577149B1 (en) * 2011-06-28 2015-12-11 신닛테츠스미킨 카부시키카이샤 Austenitic stainless steel pipe
CN103667977A (en) * 2012-09-06 2014-03-26 无锡新大中薄板有限公司 Antibacterial Austenitic stainless steel band
KR101779305B1 (en) * 2013-12-09 2017-09-18 신닛테츠스미킨 카부시키카이샤 Austenitic stainless steel sheet and method for producing same
CN109207846A (en) * 2018-07-24 2019-01-15 福建青拓特钢技术研究有限公司 A kind of high anti-corrosion section nickel high-nitrogen austenitic stainless steel
CN109440013A (en) * 2019-01-10 2019-03-08 福建青拓特钢技术研究有限公司 A kind of non-magnetic high corrosion low-nickel austenitic stainless steel
CN109609854B (en) * 2019-01-23 2021-01-12 福建青拓特钢技术研究有限公司 700 MPa-grade high-strength metastable austenite-martensite stainless steel
CN113862562B (en) * 2021-09-09 2023-12-05 中车戚墅堰机车车辆工艺研究所有限公司 Antioxidant high-creep cast austenitic heat-resistant stainless steel and preparation method thereof
CN114086077B (en) * 2022-01-11 2022-05-20 科华控股股份有限公司 Cast iron-based austenite creep-resistant steel and preparation method and application thereof

Also Published As

Publication number Publication date
CN114086077A (en) 2022-02-25
WO2023134292A1 (en) 2023-07-20
EP4234744A1 (en) 2023-08-30
CN114086077B (en) 2022-05-20

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RIN1 Information on inventor provided before grant (corrected)

Inventor name: GONG, GAOQUAN

Inventor name: WANG, YINJIE

Inventor name: CHEN, XIAOHUA