MA53640B1 - Cold rolled and coated steel sheet and method of making same - Google Patents

Cold rolled and coated steel sheet and method of making same

Info

Publication number
MA53640B1
MA53640B1 MA53640A MA53640A MA53640B1 MA 53640 B1 MA53640 B1 MA 53640B1 MA 53640 A MA53640 A MA 53640A MA 53640 A MA53640 A MA 53640A MA 53640 B1 MA53640 B1 MA 53640B1
Authority
MA
Morocco
Prior art keywords
steel sheet
cold rolled
coated steel
making same
ferrite
Prior art date
Application number
MA53640A
Other languages
French (fr)
Other versions
MA53640A (en
Inventor
Samaneh Alibeigi
Original Assignee
Arcelormittal
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 Arcelormittal filed Critical Arcelormittal
Publication of MA53640A publication Critical patent/MA53640A/en
Publication of MA53640B1 publication Critical patent/MA53640B1/en

Links

Classifications

    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/02—Winding-up or coiling
    • 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
    • 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
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • 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
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold rolling
    • 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
    • C21D8/0273—Final recrystallisation annealing
    • 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
    • C22C38/04—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
    • C22C38/06—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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/12—Aluminium or alloys based thereon
    • 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
    • C21D2211/002—Bainite
    • 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
    • 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)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

L'invention concerne une tôle d'acier laminée à froid et traitée thermiquement présentant une composition comprenant les éléments suivants satisfaisant : 0,13 % = carbone = 0,18 %, 1,1 % = manganèse = 1,8 %, 0,5 % = silicium = 0,9 %, 0,6 % = aluminium = 1 %, 0,002 % = phosphore = 0,02 %, 0 % = soufre = 0,003 %, 0 % = azote = 0,007 %, et pouvant contenir un ou plusieurs des éléments facultatifs suivants : 0,05 % = chrome = 1 %, 0,001 % = molybdène = 0,5 %, 0,001 % = niobium = 0,1 %, 0,001 % = titane = 0,1 %, 0,01 % = cuivre = 2 %, 0,01 % = nickel = 3 %, 0,0001 % = calcium = 0,005 %, 0 % = vanadium = 0,1 %, 0 % = bore = 0,003 %, 0 % = cérium = 0,1 %, 0 % = magnésium = 0,010 %, 0 % = zirconium ? 0,010 %, la composition restante étant composée de fer et d'impuretés inévitables dues au traitement, la microstructure de ladite tôle d'acier comprenant, en fraction surfacique, 60 à 75 % de ferrite, 20 à 30 % de bainite, 10 à 15 % d'austénite résiduelle et 0 % à 5 % de martensite, les quantités cumulées d'austénite résiduelle et de ferrite étant situées entre 70 % et 80 %.Disclosed is a cold-rolled and heat-treated steel sheet having a composition comprising the following elements satisfying: 0.13% = carbon = 0.18%, 1.1% = manganese = 1.8%, 0, 5% = silicon = 0.9%, 0.6% = aluminum = 1%, 0.002% = phosphorus = 0.02%, 0% = sulfur = 0.003%, 0% = nitrogen = 0.007%, and may contain a or more of the following optional elements: 0.05% = chromium = 1%, 0.001% = molybdenum = 0.5%, 0.001% = niobium = 0.1%, 0.001% = titanium = 0.1%, 0.01 % = copper = 2%, 0.01% = nickel = 3%, 0.0001% = calcium = 0.005%, 0% = vanadium = 0.1%, 0% = boron = 0.003%, 0% = cerium = 0.1%, 0% = magnesium = 0.010%, 0% = zirconium? 0.010%, the remaining composition being composed of iron and unavoidable impurities due to the treatment, the microstructure of said steel sheet comprising, in surface fraction, 60 to 75% ferrite, 20 to 30% bainite, 10 to 15 % residual austenite and 0% to 5% martensite, the cumulative amounts of residual austenite and ferrite being between 70% and 80%.

MA53640A 2018-09-20 2019-09-17 Cold rolled and coated steel sheet and method of making same MA53640B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/IB2018/057253 WO2020058748A1 (en) 2018-09-20 2018-09-20 Cold rolled and coated steel sheet and a method of manufacturing thereof
PCT/IB2019/057795 WO2020058829A1 (en) 2018-09-20 2019-09-17 Cold rolled and coated steel sheet and a method of manufacturing thereof

Publications (2)

Publication Number Publication Date
MA53640A MA53640A (en) 2022-03-30
MA53640B1 true MA53640B1 (en) 2023-05-31

Family

ID=63794567

Family Applications (1)

Application Number Title Priority Date Filing Date
MA53640A MA53640B1 (en) 2018-09-20 2019-09-17 Cold rolled and coated steel sheet and method of making same

Country Status (15)

Country Link
US (1) US20220033925A1 (en)
EP (1) EP3853387B1 (en)
JP (1) JP7422143B2 (en)
KR (1) KR102647462B1 (en)
CN (1) CN112689684B (en)
CA (1) CA3110629C (en)
ES (1) ES2946086T3 (en)
FI (1) FI3853387T3 (en)
HU (1) HUE062231T2 (en)
MA (1) MA53640B1 (en)
MX (1) MX2021003290A (en)
PL (1) PL3853387T3 (en)
UA (1) UA126725C2 (en)
WO (2) WO2020058748A1 (en)
ZA (1) ZA202101225B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115181898B (en) * 2021-04-02 2023-10-13 宝山钢铁股份有限公司 1280 MPa-level low-carbon low-alloy Q & P steel and rapid heat treatment manufacturing method thereof
MX2023014918A (en) * 2021-06-16 2024-02-14 Arcelormittal Method for producing a steel part and steel part.
CN115323275B (en) * 2022-09-05 2023-07-04 东北大学 High-strength high-toughness rare earth warm-rolled low-carbon low-manganese TRIP steel and preparation method thereof

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JP2601581B2 (en) * 1991-09-03 1997-04-16 新日本製鐵株式会社 Manufacturing method of high strength composite structure cold rolled steel sheet with excellent workability
JP2860438B2 (en) * 1991-10-28 1999-02-24 新日本製鐵株式会社 Manufacturing method of high-strength thin steel sheet with extremely excellent workability
JP3569307B2 (en) * 1994-01-12 2004-09-22 新日本製鐵株式会社 High strength composite structure cold rolled steel sheet having excellent workability and a tensile strength of 45 to 65 kgf / mm2, and a method for producing the same
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WO2012168564A1 (en) * 2011-06-07 2012-12-13 Arcelormittal Investigación Y Desarrollo Sl Cold-rolled steel plate coated with zinc or a zinc alloy, method for manufacturing same, and use of such a steel plate
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WO2017125773A1 (en) * 2016-01-18 2017-07-27 Arcelormittal High strength steel sheet having excellent formability and a method of manufacturing the same
WO2018115936A1 (en) * 2016-12-21 2018-06-28 Arcelormittal Tempered and coated steel sheet having excellent formability and a method of manufacturing the same
WO2018115935A1 (en) * 2016-12-21 2018-06-28 Arcelormittal Tempered and coated steel sheet having excellent formability and a method of manufacturing the same

Also Published As

Publication number Publication date
BR112021003583A2 (en) 2021-05-18
EP3853387A1 (en) 2021-07-28
WO2020058829A1 (en) 2020-03-26
UA126725C2 (en) 2023-01-11
CN112689684A (en) 2021-04-20
PL3853387T3 (en) 2023-07-10
MX2021003290A (en) 2021-05-13
FI3853387T3 (en) 2023-06-15
CA3110629A1 (en) 2020-03-26
HUE062231T2 (en) 2023-10-28
EP3853387B1 (en) 2023-05-10
CA3110629C (en) 2023-03-14
CN112689684B (en) 2022-12-09
JP2022501504A (en) 2022-01-06
JP7422143B2 (en) 2024-01-25
ES2946086T3 (en) 2023-07-12
KR20210061382A (en) 2021-05-27
WO2020058748A1 (en) 2020-03-26
MA53640A (en) 2022-03-30
ZA202101225B (en) 2022-01-26
US20220033925A1 (en) 2022-02-03
KR102647462B1 (en) 2024-03-13

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