EP2886675A3 - High strength steel alloy and strip and sheet product made therefrom - Google Patents

High strength steel alloy and strip and sheet product made therefrom Download PDF

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Publication number
EP2886675A3
EP2886675A3 EP14199446.7A EP14199446A EP2886675A3 EP 2886675 A3 EP2886675 A3 EP 2886675A3 EP 14199446 A EP14199446 A EP 14199446A EP 2886675 A3 EP2886675 A3 EP 2886675A3
Authority
EP
European Patent Office
Prior art keywords
high strength
strip
max
strength steel
product made
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
EP14199446.7A
Other languages
German (de)
French (fr)
Other versions
EP2886675A2 (en
EP2886675B1 (en
Inventor
Paul M. Novotny
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.)
CRS Holdings LLC
Original Assignee
CRS Holdings LLC
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 CRS Holdings LLC filed Critical CRS Holdings LLC
Priority to PL14199446T priority Critical patent/PL2886675T3/en
Publication of EP2886675A2 publication Critical patent/EP2886675A2/en
Publication of EP2886675A3 publication Critical patent/EP2886675A3/en
Application granted granted Critical
Publication of EP2886675B1 publication Critical patent/EP2886675B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/06—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
    • C22C38/18—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
    • C22C38/42—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
    • C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
    • 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
    • C21D1/58—Oils

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)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

An alloy is disclosed that provides a unique combination of very high strength, toughness, and ductility. The alloy can be characterized by the following weight percent composition. C 0.3-0.6 Mn 3.0-4.5 Si 1.0-2.0 Cr 0.6-2.5 Ni 0.6-2.5 Mo+½W Up to 0.5 Cu 0.3-1.0 Co 0.01 max. V+5/9Nb 0.1-0.5 Ti 0.025 max. Al 0.025 max. Ca 0.005 max. N 0.02 max.
The balance is iron and the usual impurities, wherein the impurities include not more than about 0.03% phosphorus and not more than about 0.003% sulfur. The alloy is further defined by containing Si, Cu, V, and optionally Nb such that 2 ≤ (%Si + %Cu)/(%V+(5/9) x %Nb)≤ 34.
EP14199446.7A 2013-12-20 2014-12-19 High strength steel alloy and strip and sheet product made therefrom Active EP2886675B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14199446T PL2886675T3 (en) 2013-12-20 2014-12-19 High strength steel alloy and strip and sheet product made therefrom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201361919081P 2013-12-20 2013-12-20

Publications (3)

Publication Number Publication Date
EP2886675A2 EP2886675A2 (en) 2015-06-24
EP2886675A3 true EP2886675A3 (en) 2015-08-05
EP2886675B1 EP2886675B1 (en) 2019-05-22

Family

ID=52231942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14199446.7A Active EP2886675B1 (en) 2013-12-20 2014-12-19 High strength steel alloy and strip and sheet product made therefrom

Country Status (5)

Country Link
US (2) US20150176109A1 (en)
EP (1) EP2886675B1 (en)
JP (1) JP6099103B2 (en)
ES (1) ES2743175T3 (en)
PL (1) PL2886675T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018160462A1 (en) 2017-03-01 2018-09-07 Ak Steel Properties, Inc. Press hardened steel with extremely high strength
CN114107847B (en) * 2021-09-28 2022-10-11 材谷金带(佛山)金属复合材料有限公司 1050 aluminum/304 stainless steel composite plate heat treatment method

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11229075A (en) * 1998-02-18 1999-08-24 Sumitomo Metal Ind Ltd High strength steel excellent in delayed breakdown resistance, and its production
JPH11269541A (en) * 1998-03-24 1999-10-05 Nisshin Steel Co Ltd Manufacture of high strength steel excellent in fatigue characteristic
US7067019B1 (en) * 2003-11-24 2006-06-27 Malltech, L.L.C. Alloy steel and article made therefrom
EP1975266A1 (en) * 2005-12-28 2008-10-01 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Ultrahigh-strength steel sheet
JP2010116593A (en) * 2008-11-12 2010-05-27 Kobe Steel Ltd Method for manufacturing high-strength hot-dip galvannealed steel sheet, and high-strength hot-dip galvannealed steel sheet
EP2397571A1 (en) * 2009-02-12 2011-12-21 NHK Spring Co., Ltd. Steel for high-strength vehicle stabilizer with excellent corrosion resistance and low-temperature toughness, and process for the production of same, and stabilizer
JP2012001802A (en) * 2010-06-21 2012-01-05 Sumitomo Metal Ind Ltd Steel, and method for manufacturing the same, and steel sheet for quenching treatment
WO2012153831A1 (en) * 2011-05-12 2012-11-15 日本発條株式会社 Steel for automotive suspension spring component, automotive suspension spring component, and manufacturing method for same
EP2543747A1 (en) * 2010-03-04 2013-01-09 Kabushiki Kaisha Kobe Seiko Sho Seamless steel pipe of high-strength hollow spring

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2194776C2 (en) * 1998-01-14 2002-12-20 Ниппон Стил Корпорейшн Rails from bainitic steel with high resistance to surface fatigue failure and to wear
JP5287770B2 (en) * 2010-03-09 2013-09-11 Ｊｆｅスチール株式会社 High strength steel plate and manufacturing method thereof
KR101253885B1 (en) * 2010-12-27 2013-04-16 주식회사 포스코 Steel sheet fir formed member, formed member having excellent ductility and method for manufacturing the same
EP2692895B1 (en) * 2011-03-28 2018-02-28 Nippon Steel & Sumitomo Metal Corporation Cold-rolled steel sheet and production method thereof
JP5736929B2 (en) * 2011-04-19 2015-06-17 Ｊｆｅスチール株式会社 Ultra-high-strength ERW steel pipe with excellent workability and low-temperature toughness and method for producing the same
JP5440672B2 (en) * 2011-09-16 2014-03-12 Ｊｆｅスチール株式会社 High-strength steel sheet with excellent workability and method for producing the same
KR101613806B1 (en) * 2011-10-24 2016-04-29 제이에프이 스틸 가부시키가이샤 Method for manufacturing high strength steel sheet having excellent formability

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11229075A (en) * 1998-02-18 1999-08-24 Sumitomo Metal Ind Ltd High strength steel excellent in delayed breakdown resistance, and its production
JPH11269541A (en) * 1998-03-24 1999-10-05 Nisshin Steel Co Ltd Manufacture of high strength steel excellent in fatigue characteristic
US7067019B1 (en) * 2003-11-24 2006-06-27 Malltech, L.L.C. Alloy steel and article made therefrom
EP1975266A1 (en) * 2005-12-28 2008-10-01 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Ultrahigh-strength steel sheet
JP2010116593A (en) * 2008-11-12 2010-05-27 Kobe Steel Ltd Method for manufacturing high-strength hot-dip galvannealed steel sheet, and high-strength hot-dip galvannealed steel sheet
EP2397571A1 (en) * 2009-02-12 2011-12-21 NHK Spring Co., Ltd. Steel for high-strength vehicle stabilizer with excellent corrosion resistance and low-temperature toughness, and process for the production of same, and stabilizer
EP2543747A1 (en) * 2010-03-04 2013-01-09 Kabushiki Kaisha Kobe Seiko Sho Seamless steel pipe of high-strength hollow spring
JP2012001802A (en) * 2010-06-21 2012-01-05 Sumitomo Metal Ind Ltd Steel, and method for manufacturing the same, and steel sheet for quenching treatment
WO2012153831A1 (en) * 2011-05-12 2012-11-15 日本発條株式会社 Steel for automotive suspension spring component, automotive suspension spring component, and manufacturing method for same

Also Published As

Publication number Publication date
EP2886675A2 (en) 2015-06-24
ES2743175T3 (en) 2020-02-18
JP6099103B2 (en) 2017-03-22
PL2886675T3 (en) 2019-11-29
US20190048447A1 (en) 2019-02-14
JP2015134962A (en) 2015-07-27
US20150176109A1 (en) 2015-06-25
EP2886675B1 (en) 2019-05-22

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