ZA202311584B - High-toughness ultrahigh-strength steel and manufacturing method therefor - Google Patents

High-toughness ultrahigh-strength steel and manufacturing method therefor

Info

Publication number
ZA202311584B
ZA202311584B ZA2023/11584A ZA202311584A ZA202311584B ZA 202311584 B ZA202311584 B ZA 202311584B ZA 2023/11584 A ZA2023/11584 A ZA 2023/11584A ZA 202311584 A ZA202311584 A ZA 202311584A ZA 202311584 B ZA202311584 B ZA 202311584B
Authority
ZA
South Africa
Prior art keywords
strength steel
toughness
ultrahigh
manufacturing
present application
Prior art date
Application number
ZA2023/11584A
Inventor
Jing Ning
Jie Su
Zhuoyue Yang
Qi Gao
Yali Ding
Jiayan Chen
Ao Wang
Geng Liu
Original Assignee
Central Iron & Steel Res Inst
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 Central Iron & Steel Res Inst filed Critical Central Iron & Steel Res Inst
Publication of ZA202311584B publication Critical patent/ZA202311584B/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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C21D1/26—Methods of annealing
    • 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
    • C21D1/26—Methods of annealing
    • C21D1/28—Normalising
    • 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
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • 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
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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
    • C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
    • 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
    • C22C38/04—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
    • C22C38/18—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
    • 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
    • C21D2211/008—Martensite

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 Steel (AREA)

Abstract

The present application discloses a high-toughness ultrahigh-strength steel and a manufacturing method thereof, and belongs to the technical field of metal materials. The present application is intended to solve the problem that the existing low-alloy ultrahigh-strength steel has poor toughness and poor hardenability. The high-toughness ultrahigh-strength steel includes the following elements in mass percentages: C: 0.27% to 0.35%; Si: 1.10% to 1.70%; Mn: 0.70% to 1.10%; Cr: 1.00% to 1.40%; Ni: 0.10% to 0.50%; Mo: 0.05% to 0.50%; W: 0.05% to 0.10%; Nb: 0.01% to 0.04%; and iron and unavoidable impurities: the balance. The high-toughness ultrahigh-strength steel of the present application has excellent strength, toughness and hardenability.
ZA2023/11584A 2021-11-26 2023-12-18 High-toughness ultrahigh-strength steel and manufacturing method therefor ZA202311584B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111425641.8A CN114107821B (en) 2021-11-26 2021-11-26 High-toughness ultrahigh-strength steel and manufacturing method thereof
PCT/CN2022/109923 WO2023093119A1 (en) 2021-11-26 2022-08-03 High-toughness ultrahigh-strength steel and manufacturing method therefor

Publications (1)

Publication Number Publication Date
ZA202311584B true ZA202311584B (en) 2024-01-31

Family

ID=80370611

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA2023/11584A ZA202311584B (en) 2021-11-26 2023-12-18 High-toughness ultrahigh-strength steel and manufacturing method therefor

Country Status (3)

Country Link
CN (1) CN114107821B (en)
WO (1) WO2023093119A1 (en)
ZA (1) ZA202311584B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114107821B (en) * 2021-11-26 2022-07-08 钢铁研究总院 High-toughness ultrahigh-strength steel and manufacturing method thereof
CN114774630B (en) * 2022-04-21 2024-05-03 河南中原特钢装备制造有限公司 Low-cost low-alloy ultrahigh-strength steel and manufacturing method thereof
CN115216695B (en) * 2022-07-22 2023-08-08 上海大学 Ultra-high strength alloy steel, 16.8-grade threaded fastener and preparation method thereof

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001123247A (en) * 1999-10-21 2001-05-08 Daido Steel Co Ltd Cold tool steel excellent in machinability
CN100453683C (en) * 2006-02-24 2009-01-21 南阳二机石油装备(集团)有限公司 Low-temperature high-strength, high-toughness steel and preparing method therefor
JP4818766B2 (en) * 2006-03-20 2011-11-16 日産自動車株式会社 Self-piercing rivet manufacturing method
CN101210302B (en) * 2006-12-25 2010-08-18 宝山钢铁股份有限公司 Middle and low carbon bainite high-strength high-ductility steel and manufacturing method thereof
JP2010125511A (en) * 2008-12-01 2010-06-10 Sanyo Special Steel Co Ltd Roll die for cold pilger rolling mill, and method for manufacturing the same
CN101899622B (en) * 2009-05-27 2012-03-28 宝山钢铁股份有限公司 Alloy steel for high-pressure container and preparation method thereof
CN102212760A (en) * 2011-06-10 2011-10-12 钢铁研究总院 Steel with high toughness and ultrahigh strength
KR101705168B1 (en) * 2015-04-20 2017-02-10 현대자동차주식회사 Carburizing alloy steel improved durability and the method of manufacturing the same
CN106048430B (en) * 2016-07-06 2017-11-03 马钢(集团)控股有限公司 A kind of high tenacity track traffic bainitic steel wheel and its manufacture method
MX2020004442A (en) * 2017-11-02 2020-08-13 Nippon Steel Corp Piercing plug and manufacturing method therefor.
EP3797176A1 (en) * 2018-05-22 2021-03-31 ThyssenKrupp Steel Europe AG Shaped sheet-metal part with a high tensile strength formed from a steel and method for the production thereof
JP7277859B2 (en) * 2020-03-11 2023-05-19 日本製鉄株式会社 Gas nitrocarburized part and its manufacturing method
CN111979487A (en) * 2020-08-14 2020-11-24 上海佩琛金属材料有限公司 High-ductility low-alloy ultrahigh-strength steel and preparation method thereof
CN114107821B (en) * 2021-11-26 2022-07-08 钢铁研究总院 High-toughness ultrahigh-strength steel and manufacturing method thereof

Also Published As

Publication number Publication date
CN114107821A (en) 2022-03-01
CN114107821B (en) 2022-07-08
WO2023093119A1 (en) 2023-06-01

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