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MA58835B1 - HIGH-STRENGTH COLD-ROLLED STEEL SHEET ANNEALED AFTER GALVANIZATION AND METHOD FOR MANUFACTURING SAME - Google Patents

HIGH-STRENGTH COLD-ROLLED STEEL SHEET ANNEALED AFTER GALVANIZATION AND METHOD FOR MANUFACTURING SAME

Info

Publication number
MA58835B1
MA58835B1 MA58835A MA58835A MA58835B1 MA 58835 B1 MA58835 B1 MA 58835B1 MA 58835 A MA58835 A MA 58835A MA 58835 A MA58835 A MA 58835A MA 58835 B1 MA58835 B1 MA 58835B1
Authority
MA
Morocco
Prior art keywords
galvanization
steel sheet
rolled steel
manufacturing same
strength cold
Prior art date
Application number
MA58835A
Other languages
French (fr)
Inventor
Josée Drillet
Dongwei Fan
Da Rosa Gregory Inacio
Lijia Zhao
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 MA58835B1 publication Critical patent/MA58835B1/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
    • 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
    • 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
    • C21D8/0278—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface treatment
    • 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
    • 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
    • C22C38/02—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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • 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)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Coating With Molten Metal (AREA)

Abstract

L'invention concerne une tôle d'acier laminée à froid et recuite après galvanisation ayant une composition comprenant, en pourcentage en poids : de 0,15 à 0,25 % de c, de 2,4 à 3,5 % de mn, de 0,30 à 0,90 % de si, de 0,30 à 0,70 % de cr, de 0,05 à 0,35 % de mo, de 0,001 à 0,09 % d'al, de 0,01 à 0,06 % de ti, de 0,0010 à 0,0040 % de b, de 0,01 à 0,05 % de nb, une proportion = 0,020 % de p, une proportion = 0,010 % de s et une proportion = 0,008 % de n, le complément de la composition étant constitué de fer et d'impuretés inévitables résultant de la fusion, et ayant une microstructure consistant en, en fraction de surface, entre 80 % et 90 % de martensite, le complément étant constitué de ferrite et de bainite.The invention relates to a cold-rolled steel sheet annealed after galvanization having a composition comprising, in percentage by weight: from 0.15 to 0.25% of c, from 2.4 to 3.5% of mn, from 0.30 to 0.90% si, from 0.30 to 0.70% cr, from 0.05 to 0.35% mo, from 0.001 to 0.09% al, from 0, 01 to 0.06% of ti, from 0.0010 to 0.0040% of b, from 0.01 to 0.05% of nb, a proportion = 0.020% of p, a proportion = 0.010% of s and a proportion = 0.008% of n, the remainder of the composition consisting of iron and unavoidable impurities resulting from fusion, and having a microstructure consisting of, as a surface fraction, between 80% and 90% martensite, the remainder being made up of ferrite and bainite.

MA58835A 2020-03-02 2021-02-08 HIGH-STRENGTH COLD-ROLLED STEEL SHEET ANNEALED AFTER GALVANIZATION AND METHOD FOR MANUFACTURING SAME MA58835B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/IB2020/051750 WO2021176249A1 (en) 2020-03-02 2020-03-02 High strength cold rolled and galvannealed steel sheet and manufacturing process thereof
PCT/IB2021/050994 WO2021176285A1 (en) 2020-03-02 2021-02-08 High strength cold rolled and galvannealed steel sheet and manufacturing process thereof

Publications (1)

Publication Number Publication Date
MA58835B1 true MA58835B1 (en) 2024-05-31

Family

ID=69770986

Family Applications (1)

Application Number Title Priority Date Filing Date
MA58835A MA58835B1 (en) 2020-03-02 2021-02-08 HIGH-STRENGTH COLD-ROLLED STEEL SHEET ANNEALED AFTER GALVANIZATION AND METHOD FOR MANUFACTURING SAME

Country Status (15)

Country Link
US (1) US20230141248A1 (en)
EP (1) EP4114994B1 (en)
JP (1) JP7488351B2 (en)
KR (2) KR20220128659A (en)
CN (1) CN115066507B (en)
CA (1) CA3167692A1 (en)
ES (1) ES2978141T3 (en)
FI (1) FI4114994T3 (en)
HU (1) HUE066172T2 (en)
MA (1) MA58835B1 (en)
MX (1) MX2022010798A (en)
PL (1) PL4114994T3 (en)
UA (1) UA129224C2 (en)
WO (2) WO2021176249A1 (en)
ZA (1) ZA202207671B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118159678A (en) * 2021-10-29 2024-06-07 安赛乐米塔尔公司 Cold rolled and heat treated steel sheet and method for producing the same
KR20230073569A (en) * 2021-11-19 2023-05-26 주식회사 포스코 Cold rolled steel sheet having excellent strength and formability and method of manufacturing the same
CN117004878A (en) * 2022-04-29 2023-11-07 宝山钢铁股份有限公司 An ultra-high-strength cold-rolled steel strip with a tensile strength of more than 1450MPa and a manufacturing method thereof
US20240309483A1 (en) 2023-03-14 2024-09-19 Cleveland-Cliffs Steel Properties Inc. High strength galvanized and galvannealed steel sheets and manufacturing method
CN117230288A (en) * 2023-08-30 2023-12-15 河北工业大学 Thermal treatment process of hot-formed steel plate with zinc-based coating with low crack sensitivity

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PL2803746T3 (en) * 2012-01-13 2019-09-30 Nippon Steel & Sumitomo Metal Corporation Hot stamped steel and method for producing the same
JP5862651B2 (en) * 2013-12-18 2016-02-16 Ｊｆｅスチール株式会社 High-strength hot-dip galvanized steel sheet excellent in impact resistance and bending workability and manufacturing method thereof
CN105814227B (en) * 2013-12-18 2018-02-27 杰富意钢铁株式会社 High-strength hot-dip galvanized steel sheet and its manufacture method
JP6234845B2 (en) * 2014-03-06 2017-11-22 株式会社神戸製鋼所 High strength galvannealed steel sheet with excellent bake hardenability and bendability
WO2015185956A1 (en) * 2014-06-06 2015-12-10 ArcelorMittal Investigación y Desarrollo, S.L. High strength multiphase galvanized steel sheet, production method and use
WO2016001704A1 (en) * 2014-07-03 2016-01-07 Arcelormittal Method for manufacturing a high strength steel sheet and sheet obtained
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Also Published As

Publication number Publication date
CN115066507A (en) 2022-09-16
FI4114994T3 (en) 2024-04-26
WO2021176249A1 (en) 2021-09-10
UA129224C2 (en) 2025-02-12
CN115066507B (en) 2023-12-22
CA3167692A1 (en) 2021-09-10
ES2978141T3 (en) 2024-09-05
JP7488351B2 (en) 2024-05-21
EP4114994B1 (en) 2024-03-27
ZA202207671B (en) 2023-04-26
KR20220128659A (en) 2022-09-21
BR112022014638A2 (en) 2022-09-13
JP2023508240A (en) 2023-03-01
WO2021176285A1 (en) 2021-09-10
MX2022010798A (en) 2022-09-27
PL4114994T3 (en) 2024-06-24
US20230141248A1 (en) 2023-05-11
HUE066172T2 (en) 2024-07-28
EP4114994A1 (en) 2023-01-11
KR20260003857A (en) 2026-01-07

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