BR112021021486A2 - Cold-rolled martensitic steel sheet, method of producing a cold-rolled martensitic steel sheet and using a steel sheet - Google Patents
Cold-rolled martensitic steel sheet, method of producing a cold-rolled martensitic steel sheet and using a steel sheetInfo
- Publication number
- BR112021021486A2 BR112021021486A2 BR112021021486A BR112021021486A BR112021021486A2 BR 112021021486 A2 BR112021021486 A2 BR 112021021486A2 BR 112021021486 A BR112021021486 A BR 112021021486A BR 112021021486 A BR112021021486 A BR 112021021486A BR 112021021486 A2 BR112021021486 A2 BR 112021021486A2
- Authority
- BR
- Brazil
- Prior art keywords
- steel sheet
- cold
- rolled martensitic
- martensitic steel
- rolled
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract 8
- 239000010959 steel Substances 0.000 title abstract 8
- 229910000734 martensite Inorganic materials 0.000 title abstract 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 229910001566 austenite Inorganic materials 0.000 abstract 1
- 229910001563 bainite Inorganic materials 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910000859 α-Fe Inorganic materials 0.000 abstract 1
Classifications
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- 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
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- 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
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- 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
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- 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
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- 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
- C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0405—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing of ferrous alloys
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- 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/041—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing involving a particular fabrication or treatment of ingot or slab
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- 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
- C21D8/0426—Hot rolling
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- 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
- C21D8/0436—Cold rolling
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- 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
- C21D8/0463—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment following hot rolling
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- 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
- C21D8/0473—Final recrystallisation annealing
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- 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
- C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
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- 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
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- 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
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- 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
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- 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)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
chapa de aço martensítico laminada a frio, método de produção de uma chapa de aço martensítico laminada a frio e uso de uma chapa de aço. chapa de aço martensítico laminada a frio compreendendo os seguintes elementos, expressos em porcentagem em peso: 0,1% ¿ c ¿ 0,2%; 1,5% ¿ mn ¿ 2,5%; 0,1% ¿ si ¿ 0,25%; 0,1% ¿ cr ¿ 1%; 0,01% ¿ al ¿ 0,1%; 0,001% ¿ ti ¿ 0,1%; 0% ¿ s ¿ 0,09%; 0% ¿ p ¿ 0,09%; 0% ¿ n ¿ 0,09%; e pode conter um ou mais dos seguintes elementos opcionais 0% ¿ ni ¿ 1%; 0% ¿ cu ¿ 1%; 0% ¿ mo ¿ 0,4%; 0% ¿ nb ¿ 0,1%; 0% ¿ v ¿ 0,1%; 0% ¿ b ¿ 0,05%; 0% ¿ sn ¿ 0,1%; 0% ¿ pb ¿ 0,1%; 0% ¿ sb ¿ 0,1%; 0,001% ¿ ca ¿ 0,01%; a composição restante sendo composta de ferro e impurezas inevitáveis causadas pelo processamento, a microestrutura do referido aço compreendendo, por porcentagem de área, pelo menos 95% de martensita, uma quantidade acumulada de ferrita e bainita entre 1% e 5%, e uma quantidade opcional de austenita residual entre 0% e 2%.cold-rolled martensitic steel sheet, method of producing a cold-rolled martensitic steel sheet and using a steel sheet. cold-rolled martensitic steel sheet comprising the following elements, expressed as a percentage by weight: 0.1% ¿ c ¿ 0.2%; 1.5% - mn - 2.5%; 0.1% is 0.25%; 0.1% - cr - 1%; 0.01% - al - 0.1%; 0.001% ¿ ti ¿ 0.1%; 0% ¿ s ¿ 0.09%; 0% ¿ p ¿ 0.09%; 0% ¿ n ¿ 0.09%; and may contain one or more of the following optional elements 0% ¿ ni ¿ 1%; 0% - cu - 1%; 0% - mo - 0.4%; 0% ¿ nb ¿ 0.1%; 0% ¿ v ¿ 0.1%; 0% ¿ b ¿ 0.05%; 0% ¿ sn ¿ 0.1%; 0% - pb - 0.1%; 0% ¿ sb ¿ 0.1%; 0.001% ¿ ca ¿ 0.01%; the remaining composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel comprising, by percentage of area, at least 95% martensite, an accumulated amount of ferrite and bainite between 1% and 5%, and an amount optional residual austenite between 0% and 2%.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2019/054022 WO2020229877A1 (en) | 2019-05-15 | 2019-05-15 | A cold rolled martensitic steel and a method for it's manufacture |
PCT/IB2020/052999 WO2020229898A1 (en) | 2019-05-15 | 2020-03-30 | A cold rolled martensitic steel and a method of martensitic steel thereof |
Publications (1)
Publication Number | Publication Date |
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BR112021021486A2 true BR112021021486A2 (en) | 2021-12-21 |
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ID=66630335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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BR112021021486A BR112021021486A2 (en) | 2019-05-15 | 2020-03-30 | Cold-rolled martensitic steel sheet, method of producing a cold-rolled martensitic steel sheet and using a steel sheet |
Country Status (10)
Country | Link |
---|---|
US (1) | US20220213573A1 (en) |
EP (1) | EP3969628A1 (en) |
JP (2) | JP2022532625A (en) |
KR (1) | KR20210149145A (en) |
CN (1) | CN113748219B (en) |
BR (1) | BR112021021486A2 (en) |
CA (1) | CA3140117C (en) |
MA (1) | MA55949A (en) |
WO (2) | WO2020229877A1 (en) |
ZA (1) | ZA202107698B (en) |
Families Citing this family (12)
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CN113403535B (en) * | 2021-05-31 | 2022-05-20 | 北京首钢股份有限公司 | Hot-rolled strip steel for carriage plate and preparation method thereof |
BR112023024874A2 (en) * | 2021-06-16 | 2024-02-15 | Arcelormittal | METHOD FOR PRODUCING A STEEL PART AND STEEL PART |
CN114086071B (en) * | 2021-11-19 | 2022-10-18 | 本钢板材股份有限公司 | Low-cost 1200 Mpa-grade cold-rolled high-strength martensitic steel and manufacturing method thereof |
JP7311067B1 (en) * | 2022-03-30 | 2023-07-19 | Jfeスチール株式会社 | Steel plate and member, and manufacturing method thereof |
JP7311070B1 (en) * | 2022-03-30 | 2023-07-19 | Jfeスチール株式会社 | Steel plate and member, and manufacturing method thereof |
WO2023188505A1 (en) * | 2022-03-30 | 2023-10-05 | Jfeスチール株式会社 | Steel sheet and member, and methods for producing same |
WO2023188504A1 (en) * | 2022-03-30 | 2023-10-05 | Jfeスチール株式会社 | Steel sheet, member, method for producing said steel sheet and method for producing said member |
WO2023223078A1 (en) * | 2022-05-19 | 2023-11-23 | Arcelormittal | A martensitic steel sheet and a method of manunfacturing thereof |
CN115181908A (en) * | 2022-07-07 | 2022-10-14 | 莱芜钢铁集团银山型钢有限公司 | Ultra-thick 460 MPa-grade steel plate in service in extremely cold region and preparation method thereof |
WO2024033688A1 (en) * | 2022-08-12 | 2024-02-15 | Arcelormittal | A cold rolled martensitic steel and method of producing thereof |
WO2024105429A1 (en) * | 2022-11-14 | 2024-05-23 | Arcelormittal | High toughness press-hardened steel part and method of manufacturing the same |
WO2024105428A1 (en) * | 2022-11-14 | 2024-05-23 | Arcelormittal | High toughness press-hardened steel part and method of manufacturing the same |
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KR20100034118A (en) | 2008-09-23 | 2010-04-01 | 포항공과대학교 산학협력단 | Hot-dip galvanized steel sheet having a martensitic structure with ultimate high strength and method for manufacturing the same |
JP5136609B2 (en) * | 2010-07-29 | 2013-02-06 | Jfeスチール株式会社 | High-strength hot-dip galvanized steel sheet excellent in formability and impact resistance and method for producing the same |
WO2013065346A1 (en) * | 2011-11-01 | 2013-05-10 | Jfeスチール株式会社 | High-strength hot-rolled steel sheet having excellent bending characteristics and low-temperature toughness and method for producing same |
JP5821912B2 (en) * | 2013-08-09 | 2015-11-24 | Jfeスチール株式会社 | High-strength cold-rolled steel sheet and manufacturing method thereof |
WO2015088523A1 (en) * | 2013-12-11 | 2015-06-18 | ArcelorMittal Investigación y Desarrollo, S.L. | Cold rolled and annealed steel sheet |
KR101568549B1 (en) * | 2013-12-25 | 2015-11-11 | 주식회사 포스코 | Steel sheet for hot press formed product having high bendability and ultra high strength, hot press formed product using the same and method for manufacturing the same |
CN105980591A (en) * | 2014-02-05 | 2016-09-28 | 安赛乐米塔尔股份公司 | Hot formable, air hardenable, weldable, steel sheet |
EP3128026B1 (en) * | 2014-03-31 | 2019-03-06 | JFE Steel Corporation | High-strength cold rolled steel sheet exhibiting excellent material-quality uniformity, and production method therefor |
WO2015177582A1 (en) * | 2014-05-20 | 2015-11-26 | Arcelormittal Investigación Y Desarrollo Sl | Double-annealed steel sheet having high mechanical strength and ductility characteristics, method of manufacture and use of such sheets |
WO2017006144A1 (en) * | 2015-07-09 | 2017-01-12 | Arcelormittal | Steel for press hardening and press hardened part manufactured from such steel |
KR101725274B1 (en) | 2015-10-16 | 2017-04-10 | 삼화스틸(주) | Steel plate with high tensile strength and process for the same |
KR101767780B1 (en) * | 2015-12-23 | 2017-08-24 | 주식회사 포스코 | High strength cold rolled steel sheet having high yield ratio and method for manufacturing the same |
WO2017125773A1 (en) * | 2016-01-18 | 2017-07-27 | Arcelormittal | High strength steel sheet having excellent formability and a method of manufacturing the same |
CN107619993B (en) * | 2016-07-13 | 2019-12-17 | 上海梅山钢铁股份有限公司 | Cold-rolled martensite steel plate with yield strength of 750MPa and manufacturing method thereof |
JP6354919B1 (en) * | 2016-08-30 | 2018-07-11 | Jfeスチール株式会社 | Thin steel plate and manufacturing method thereof |
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