EP2855717A1 - Steel, sheet steel product and process for producing a sheet steel product - Google Patents
Steel, sheet steel product and process for producing a sheet steel productInfo
- Publication number
- EP2855717A1 EP2855717A1 EP13726583.1A EP13726583A EP2855717A1 EP 2855717 A1 EP2855717 A1 EP 2855717A1 EP 13726583 A EP13726583 A EP 13726583A EP 2855717 A1 EP2855717 A1 EP 2855717A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel
- cold
- temperature
- product
- flat
- 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
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
- C22C38/18—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
- 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
- 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
- C21D6/002—Heat treatment of ferrous alloys containing Cr
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/02—Hardening by precipitation
-
- 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
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
-
- 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
-
- 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
- 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
-
- 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
-
- 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
-
- 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
-
- 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
- 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
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
-
- 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
-
- 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
- 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
- C22C38/40—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
- C22C38/48—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
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
-
- 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
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- 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
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
- C23C2/0224—Two or more thermal pretreatments
-
- 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
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
- C23C2/024—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching
-
- 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
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/40—Plates; Strips
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F17/00—Multi-step processes for surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by subclass C21D or C22F or class C25
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/06—Wires; Strips; Foils
- C25D7/0614—Strips or foils
-
- 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
- C21D2211/005—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
Definitions
- the invention relates to a cost-producible, higher-strength steel.
- the invention likewise relates to a flat steel product produced from such a steel and to a method for producing the same
- Dual-phase steels have been used in automotive engineering for some time.
- alloying concepts for such steels known, each of which is composed so that they meet a wide variety of requirements.
- Many of the known concepts are based on an alloy with molybdenum or require elaborate production processes, in particular a very rapid cooling in the cold strip annealing in order to produce the respectively desired structure of the steel. Since the price of molybdenum in the market is subject to strong fluctuations, the production of steels containing high levels of Mo is associated with a high cost risk.
- molybdenum there are the positive effects that molybdenum has on the mechanical properties of dual-phase steels. For example, sufficiently high Mo contents retard perlite formation during cooling and
- JP 11-310852 discloses a process for producing a hot strip of a dual-phase steel which contains (in% by weight) 0.03-0.15% C, up to 1.5% Si, O, 05 - 2.5% Mn, up to 0.05% P, 0.005 - 0.5% Al, 0.02 - 2% Cr, up to 0.01% N, up to 0.03% Ti, up to 0.06% Nb and the remainder iron and unavoidable impurities
- the hot strip should have a structure that (in
- Area%) consists of 55-95% polygonal ferrite and 5-45% hard phases, those at low
- a suitably composite steel is cast into slabs, which are heated after cooling to up to 1280 ° C and then hot rolled at a hot rolling temperature of Ar3 ⁇ 50 ° C to hot strip.
- the obtained Hot strip is then coiled at a reel temperature of up to 250 ° C.
- the low reel temperature leads to the formation of strength-enhancing phases and thus to a very strong hot strip.
- This is difficult to process further. This is especially evident in the attempt to produce such produced hot strips
- WO 2011/135997 is also a dual-phase steel, a hot-rolled steel sheet produced therefrom, and a method for producing such
- the hot-rolled steel sheet known.
- the steel consists besides iron and unavoidable impurities of (in wt .-%) 0.07 - 0.2% C, 0.3 - 1.5% Si and Al, 1.0 - 3.0% Mn, bis to 0.02% P, up to 0.005% S, 0.1-0.5% Cr and 0.001-0.008% N and additionally 0.002-0.05% Ti or 0.002-0.05% Nb.
- the hot-rolled steel sheet has a microstructure which (in area%) to 7 - 35% of ferrite with a particle diameter of 0.5 - 3.0 ⁇ and the remainder of bainite ferrite or bainite and martensite. High contents of at least 0.5% Si contribute to increasing the strength of the steel, while
- Aluminum is merely added to soothe the steel during its production. Again, a low reel temperature of less than 430 ° C
- WO 2011/076383 describes a hot-dip galvanized steel strip which should have a high strength.
- the steel strip consists in this case of a
- the object of the invention was to provide a steel and a flat steel product, which have optimized mechanical properties and can be produced inexpensively, without being expensive, in terms of their procurement costs
- Carbon allows the formation of martensite in the microstructure and is therefore in the steel of the invention for setting the desired high strength
- the steel according to the invention contains at least 0.12 wt .-% C. Too high a C content, however, has a negative effect on the welding behavior. In general, the weldability of a steel decreases with the level of its carbon content. To negative influences of the C content on his
- steel of the invention limited the maximum carbon content to 0.18% by weight. Silicon also increases in strength
- the upper limit of the Si content of a steel according to the invention is 0.2% by weight.
- the upper limit of the Mn content range of a steel according to the invention is included
- Aluminum is of particular importance in the alloy according to the invention. Already used at low levels, it is used for deoxidation.
- the inventively provided amount of at least 0.2 wt .-% promotes the formation of retained austenite. This has a positive effect on the elongation at break and the n value of steel flat products made from steel according to the invention, similar to known TRIP steels.
- a content of more than 0.5 wt .-% AI deteriorates but in the case that the steel according to the invention as a precursor to slabs or thin slabs
- the contents of Al in a steel according to the invention are limited to 0.5% by weight.
- Chromium is in the steel according to the invention such as manganese for
- An Nb content of at least 0.01% by weight is required for this purpose. Too high content would be the
- Nb content in a steel according to the invention limited to 0.06 wt .-%, the effect of Nb then
- Phosphorus, sulfur, nitrogen, molybdenum, boron, titanium, nickel and copper are in the steel of the present invention
- Impurities are present, the production-related, for example by scraping, into the steel
- present alloying elements C, Si, Mn, Al, Cr and Nb should be at least 2.5 wt .-% and not exceed 3.5 wt .-%. If the sum of the alloy contents is too low, there is a risk that the desired mechanical properties can not be achieved. On the other hand, if the sum of the alloy contents is too high, a very high strength of more than 900 MPa, which is not aimed at here, is achieved with poorer deformation behavior.
- the method according to the invention for the production of a flat steel product according to the invention comprises the following steps: a) casting a composite according to the invention
- the precursor may be a slab or a thin slab; b) hot rolling the precursor into a hot strip having a thickness of 2 to 5.5 mm, wherein the
- the preheated steel flat product is finished heated to the respective annealing temperature within this holding stage, e.3) the cold-rolled steel flat product is cooled at the end of the annealing period at a cooling rate of 0.5 - 110 K / s.
- the respective precursor can, if necessary, in an oven over a period of up to 500 minutes at a
- the respective precursor can also be fed directly to the hot rolling in the still sufficiently hot state.
- the reel temperature is set according to the invention to 480 - 610 ° C, because a lower reel temperature to a much firmer hot-rolled steel flat product
- a coiler temperature above 610 ° C. in combination with the chromium content provided according to the invention would increase the risk of grain boundary oxidation.
- the coiled hot-rolled coil cools to room temperature in the coil. Optionally, it can be pickled after cooling to remove scale and debris adhering to it.
- the hot strip is placed in one or more
- Cold rolling steps rolled to a cold-rolled steel flat product (“cold strip”). Starting from the thickness of the hot strip predetermined according to the invention, cold rolling is carried out with a total cold rolling degree of 40-80% in order to achieve the desired cold strip thickness of 0.6-2.4 mm.
- the cold strip is subjected to a continuous annealing. This is used first to set the desired mechanical
- Hot dip coating plant to be performed.
- the glowing can also be a
- both the heating to the respective maximum annealing temperature, as well as the subsequent cooling in one or more steps can take place.
- the heating takes place first in a preheating stage at a rate of 0.2 K / s to 45 K / s to a preheating temperature of up to 870 ° C, in particular 690-860 ° C or 690-840 ° C.
- Holding level in which it, provided its preheating temperature is less than the respective targeted maximum
- Annealing temperature is, with further heating, the maximum annealing temperature of 750 - 870 ° C, achieved. At the respective maximum annealing temperature is the
- the cooling of the cold-rolled is carried out at a cooling rate of 0.5-110 K / s
- the cold-rolled steel flat product is to be dip-coated after annealing, it is cooled to a temperature of 455-550 ° C. during cooling.
- the thus tempered cold-rolled steel flat product then passes through a Zn-melt bath, which has a temperature of 450-480 ° C.
- the steel strip can be held for up to 100 seconds before entering the zinc bath. If, on the other hand, the temperature of the
- Zinc bath temperature is.
- the thickness of the Zn-based protective layer present on the flat steel product is adjusted in a known manner by a stripping device.
- the hot dip coating may be followed by another galvannealing, in which the hot dip coated flat steel product is heated up to 550 ° C to burn in the zinc layer. Either immediately after exiting the zinc bath or following the additional heat treatment, the resulting cold rolled flat steel product is obtained
- flat steel products according to the invention comprise the following variants:
- the cold-rolled steel flat product (“cold strip”) is heated in a preheating oven at a heating rate of 10 - 45 K / s to a preheating temperature of 660 - 840 ° C.
- the preheated cold strip is passed through a furnace zone in which the cold strip over a
- Holding time of 8 - 24 s at a temperature of 760 - 860 ° C is maintained.
- further heating occurs at a heating rate of 0.2 - 15 K / s.
- the thus annealed cold strip is then cooled at a cooling rate of 2.0 - 30 K / s to an inlet temperature of 455 - 550 ° C, with which it then
- Zinc melt bath is passed through and held for a maximum holding time of 45 s.
- the zinc melt bath has a temperature of 455-465 ° C. Depending on its inlet temperature, the cold strip cools
- Zinc melt bath with a cooling rate of up to 10 K / s to the respective temperature of the molten zinc bath or is kept at a constant temperature.
- Zinc coating provided cold strip is set in a conventional manner, the coating thickness.
- the cold-rolled steel flat product is in one
- Heating rate of up to 25 K / s brought to a target temperature which is 760 - 860 ° C.
- a holding of the thus-heated cold-rolled steel flat product takes place at a 750-870 ° C., in particular 780-870 ° C., amounting annealing temperature.
- a holding zone of the furnace over 35-150 s, a holding of the thus-heated cold-rolled steel flat product takes place at a 750-870 ° C., in particular 780-870 ° C., amounting annealing temperature.
- Steel flat product enters the holding zone, it is during the holding time, d. H. heated within this holding zone, with a heating rate of up to 3 K / s to the respective annealing temperature.
- Flat steel product is first cooled slowly at a cooling rate of 0.5 - 10 K / s to an intermediate temperature which is 640 - 730 ° C, and then with a cooling rate of 5 - 110 K / s accelerated to a temperature of 455 - 550 ° C is cooled.
- the zinc melt bath has a temperature of 450-480 ° C. At the from the
- Zinc coating provided cold-rolled
- a galvannealing may be performed to alloy in the zinc coating.
- the cold strip provided with the zinc coating can be heated to 470-550 ° C. and kept at this temperature for a sufficient time.
- Treatment is carried out, after Galvannealing- treatment, the zinc-coated cold-rolled a
- Temper rolling are subjected to its mechanical properties and the surface finish of the
- Dressing grades are typically in the range of
- step el heating
- step e.2 annealing at the respective annealing temperature
- the cold-rolled steel flat product is first heated in a heating zone at a heating rate of 1-8 K / s to 750-870, in particular 750-850 ° C.
- the thus annealed cold-rolled steel flat product is then subjected to a two-stage cooling, in which it is first accelerated at a cooling rate of 3 - 30 K / s cooled to an intermediate temperature of 450 - 570 ° C.
- This cooling can be carried out as air and / or gas cooling. This is followed by one
- At the respective cooling can be a
- cold-rolled steel flat product over a holding time of 150 - 760 s at a temperature of 250 - 500 ° C, in particular 250 - 330 ° C, is maintained.
- cooling of the cold-rolled steel flat product occurs at a cooling rate of up to 1.5 K / s.
- Heat-treated cold-rolled flat steel product may finally be subjected to temper rolling in order to further improve its mechanical properties.
- the applied skin passages are typically in the range of 0.1-2.0%, in particular 0.1-1.0%.
- Cold-rolled flat rolled steel can subsequently be coated with a coating machine
- Zinc alloy layer in a conventional manner
- An inventive flat steel product has a composite in the manner explained above
- alloy according to the invention is also characterized by a structure comprising 50-90 vol .-% of ferrite including bainitic ferrite, to 5 - 40 vol .-% of martensite, up to 15 vol .-% of retained austenite and to bis to 10 vol .-% for manufacturing reasons unavoidable other microstructure constituents, wherein the
- Retained austenite content is optimally in the range of 6 to 12% by volume.
- R p0 , 2 is at least 440 MPa, in particular up to 550 MPa, R m is at least 780 MPa, in particular up to 900 MPa,
- nio-20 / Ag at least 0.10
- BH 2 at least 25 MPa, in particular at least 30 MPa.
- the molten steel A-I are cast into slabs and after cooling in an oven to the respective
- Hot rolling start temperature WAT has been heated.
- hot rolled steel strips were cooled to a coiling temperature HT at which they were then wound into a coil and cooled to room temperature.
- the resulting hot-rolled steel strips are KWG with a respective overall degree of deformation
- the cold-rolled steel strips were then cooled in one stage at a cooling rate RE to a temperature TE.
- the steel strips emerging from the melt bath had a Zn alloy coating which protects them against corrosion.
- Preheating temperature TV has been heated. Immediately after preheating, the steel strips have run into a second zone of the respective furnace.
- Cooling the steel strips have been cooled with a comparatively low cooling rate RE 'to an intermediate temperature TE'. Upon reaching the intermediate temperature TE 1 , the respective steel bands are increased
- Cooling rate RE has been cooled rapidly to the respective temperature TE.
- the steel strips emerging from the melt bath had a Zn alloy coating which protects them from corrosion.
- RV heating rate preheating temperature TV, heating rate RF, annealing temperature TG, annealing time tG, cooling rate RE ', intermediate temperature TE', cooling rate RE '
- Preheating temperature TV has been heated. Immediately after preheating, the steel strips have run into a second zone of the respective furnace.
- Annealing temperature TG heated steel strips were then kept at this temperature.
- the cold-rolled steel strips were then cooled in two stages.
- Intermediate temperature TZ has been cooled with a cooling rate RU to the overaging temperature TU.
- RV heating rate preheating temperature TV, heating rate RG, annealing temperature TG, annealing time tG, cooling rate RZ ', intermediate temperature TZ', cooling rate RZ
- temper rolling mill DG This applies both to the hot dip-coated steel strips in the first two series of tests and to the steel strips that have passed through the third series of tests.
- the yield strength Rp0.2, the tensile strength Rm, the elongation A80, the n value (10-20 / Ag) and the composition of the microstructure have been determined, these properties being in each case on samples have been determined along the rolling direction.
- V-bend has been determined according to DIN EN ISO 7438.
- the sheet thickness should be here at most 1.5 and ideally does not exceed 1.0.
- the minimum bending dome diameter has been determined at which no visible damage occurs. It should be 2 * sheet thickness, ideally 1, 5 * sheet thickness. With respect to the present invention, this means that the maximum bending dome diameter should not exceed 4.8 mm.
- Table 7 shows a total of 58 in the
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012104894 | 2012-06-05 | ||
PCT/EP2013/061628 WO2013182621A1 (en) | 2012-06-05 | 2013-06-05 | Steel, sheet steel product and process for producing a sheet steel product |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2855717A1 true EP2855717A1 (en) | 2015-04-08 |
EP2855717B1 EP2855717B1 (en) | 2020-01-22 |
Family
ID=48570186
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13726583.1A Active EP2855717B1 (en) | 2012-06-05 | 2013-06-05 | Steel sheet and method to manufacture it |
EP13726805.8A Active EP2855718B1 (en) | 2012-06-05 | 2013-06-05 | Flat steel product and process for producing a flat steel product |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13726805.8A Active EP2855718B1 (en) | 2012-06-05 | 2013-06-05 | Flat steel product and process for producing a flat steel product |
Country Status (6)
Country | Link |
---|---|
US (2) | US20150152533A1 (en) |
EP (2) | EP2855717B1 (en) |
JP (2) | JP6310452B2 (en) |
KR (2) | KR102073441B1 (en) |
CN (2) | CN104520448B (en) |
WO (2) | WO2013182622A1 (en) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT516453B1 (en) * | 2014-11-03 | 2018-02-15 | Berndorf Band Gmbh | Metallic strips and their manufacturing processes |
AT516464B1 (en) * | 2014-11-03 | 2018-02-15 | Berndorf Band Gmbh | Metallic strips and their manufacturing processes |
DE102014017274A1 (en) * | 2014-11-18 | 2016-05-19 | Salzgitter Flachstahl Gmbh | Highest strength air hardening multiphase steel with excellent processing properties and method of making a strip from this steel |
CN104831177B (en) * | 2015-05-11 | 2017-11-17 | 首钢总公司 | A kind of cold-rolled galvanized duplex steel and preparation method thereof |
KR102058803B1 (en) | 2015-07-29 | 2019-12-23 | 제이에프이 스틸 가부시키가이샤 | Cold rolled steel sheet, plated steel sheet and methods for producing same |
DE102015116517A1 (en) | 2015-09-29 | 2017-03-30 | Thyssenkrupp Ag | Apparatus and method for the continuous production of a band-shaped metallic workpiece |
WO2017125773A1 (en) * | 2016-01-18 | 2017-07-27 | Arcelormittal | High strength steel sheet having excellent formability and a method of manufacturing the same |
WO2017203310A1 (en) * | 2016-05-24 | 2017-11-30 | Arcelormittal | Method for producing a twip steel sheet having an austenitic microstructure |
WO2017203315A1 (en) | 2016-05-24 | 2017-11-30 | Arcelormittal | Cold rolled and annealed steel sheet, method of production thereof and use of such steel to produce vehicle parts |
KR101822292B1 (en) | 2016-08-17 | 2018-01-26 | 현대자동차주식회사 | High strength special steel |
KR101822295B1 (en) | 2016-09-09 | 2018-01-26 | 현대자동차주식회사 | High strength special steel |
WO2018096387A1 (en) * | 2016-11-24 | 2018-05-31 | Arcelormittal | Hot-rolled and coated steel sheet for hot-stamping, hot-stamped coated steel part and methods for manufacturing the same |
CN106947919B (en) * | 2017-03-21 | 2020-01-14 | 马钢(集团)控股有限公司 | High-toughness hot forming steel and production method thereof |
CN111386229B (en) | 2017-12-15 | 2021-12-24 | 赫斯基注塑系统有限公司 | Closure cap for a container |
DE102017130237A1 (en) * | 2017-12-15 | 2019-06-19 | Salzgitter Flachstahl Gmbh | High strength hot rolled flat steel product with high edge crack resistance and high bake hardening potential, a process for producing such a flat steel product |
WO2019122963A1 (en) | 2017-12-19 | 2019-06-27 | Arcelormittal | Cold rolled and heat treated steel sheet and a method of manufacturing thereof |
CN108754307B (en) * | 2018-05-24 | 2020-06-09 | 山东钢铁集团日照有限公司 | Method for producing economical cold-rolled DP780 steel with different yield strength grades |
WO2020239905A1 (en) * | 2019-05-29 | 2020-12-03 | Thyssenkrupp Steel Europe Ag | Component produced by forming a sheet steel blank, and method for the production of said component |
WO2020245626A1 (en) * | 2019-06-03 | 2020-12-10 | Arcelormittal | Cold rolled and coated steel sheet and a method of manufacturing thereof |
WO2021213647A1 (en) * | 2020-04-22 | 2021-10-28 | Thyssenkrupp Steel Europe Ag | Hot-rolled flat steel product and method for the production thereof |
DE102021121997A1 (en) | 2021-08-25 | 2023-03-02 | Thyssenkrupp Steel Europe Ag | Cold-rolled flat steel product and method for its manufacture |
EP4261309A1 (en) | 2022-04-13 | 2023-10-18 | ThyssenKrupp Steel Europe AG | Cold-rolled steel sheet product and method for producing a cold-rolled steel sheet product |
CN117305716B (en) * | 2023-11-10 | 2024-03-15 | 常熟市龙腾特种钢有限公司 | Preparation method of anti-seismic corrosion-resistant flat bulb steel |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101264681B (en) * | 2001-06-06 | 2013-03-27 | 新日本制铁株式会社 | Hot-dip galvannealed steel sheet, steel sheet treated by hot-dip galvannealed layer diffusion and a method of producing the same |
EP1288322A1 (en) * | 2001-08-29 | 2003-03-05 | Sidmar N.V. | An ultra high strength steel composition, the process of production of an ultra high strength steel product and the product obtained |
JP4380348B2 (en) * | 2004-02-09 | 2009-12-09 | Jfeスチール株式会社 | High-strength hot-dip galvanized steel sheet with excellent surface quality |
JP4575799B2 (en) | 2005-02-02 | 2010-11-04 | 新日本製鐵株式会社 | Manufacturing method of hot-pressed high-strength steel members with excellent formability |
JP4736617B2 (en) | 2005-08-16 | 2011-07-27 | Jfeスチール株式会社 | High-strength, high-strength cold-rolled steel sheet and method for producing the same |
JP4665692B2 (en) * | 2005-09-29 | 2011-04-06 | Jfeスチール株式会社 | High-strength steel sheet with excellent bending rigidity and method for producing the same |
JP5114860B2 (en) * | 2006-03-30 | 2013-01-09 | Jfeスチール株式会社 | Hot-dip galvanized steel sheet and manufacturing method thereof |
JP5088023B2 (en) * | 2006-09-29 | 2012-12-05 | 新日本製鐵株式会社 | High-strength cold-rolled steel sheet with excellent workability and method for producing the same |
ES2325962T3 (en) * | 2006-10-30 | 2009-09-25 | Thyssenkrupp Steel Ag | PROCEDURE FOR MANUFACTURING STEEL FLAT PRODUCTS FROM A MICROALEATED MULTIPHASIC STEEL WITH BORO. |
JP5352963B2 (en) * | 2007-03-28 | 2013-11-27 | Jfeスチール株式会社 | High-tensile steel plate with excellent shape freezing property and manufacturing method thereof |
JP5151246B2 (en) * | 2007-05-24 | 2013-02-27 | Jfeスチール株式会社 | High-strength cold-rolled steel sheet and high-strength hot-dip galvanized steel sheet excellent in deep drawability and strength-ductility balance and manufacturing method thereof |
ES2387040T3 (en) * | 2007-08-15 | 2012-09-12 | Thyssenkrupp Steel Europe Ag | Double phase steel, flat product of a double phase steel of this type and process for manufacturing a flat product |
CN101229565A (en) * | 2008-02-26 | 2008-07-30 | 重庆钢铁(集团)有限责任公司 | Technology of manufacturing high strength flat-bulb steel |
EP2530179B1 (en) * | 2010-01-26 | 2018-11-14 | Nippon Steel & Sumitomo Metal Corporation | High-strength cold-rolled steel sheet, and process for production thereof |
-
2013
- 2013-06-05 CN CN201380029895.5A patent/CN104520448B/en active Active
- 2013-06-05 EP EP13726583.1A patent/EP2855717B1/en active Active
- 2013-06-05 WO PCT/EP2013/061629 patent/WO2013182622A1/en active Application Filing
- 2013-06-05 KR KR1020147037107A patent/KR102073441B1/en active IP Right Grant
- 2013-06-05 CN CN201380029968.0A patent/CN104583424B/en active Active
- 2013-06-05 US US14/406,047 patent/US20150152533A1/en not_active Abandoned
- 2013-06-05 EP EP13726805.8A patent/EP2855718B1/en active Active
- 2013-06-05 JP JP2015515518A patent/JP6310452B2/en active Active
- 2013-06-05 JP JP2015515517A patent/JP6374864B2/en active Active
- 2013-06-05 US US14/406,001 patent/US9976205B2/en active Active
- 2013-06-05 WO PCT/EP2013/061628 patent/WO2013182621A1/en active Application Filing
- 2013-06-05 KR KR1020147037108A patent/KR102073442B1/en active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO2013182621A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2855717B1 (en) | 2020-01-22 |
US9976205B2 (en) | 2018-05-22 |
JP6310452B2 (en) | 2018-04-11 |
KR20150023566A (en) | 2015-03-05 |
KR102073442B1 (en) | 2020-02-04 |
KR102073441B1 (en) | 2020-02-04 |
EP2855718B1 (en) | 2019-05-15 |
CN104583424B (en) | 2017-03-08 |
US20150152533A1 (en) | 2015-06-04 |
JP2015525292A (en) | 2015-09-03 |
KR20150028267A (en) | 2015-03-13 |
WO2013182621A1 (en) | 2013-12-12 |
EP2855718A1 (en) | 2015-04-08 |
WO2013182622A1 (en) | 2013-12-12 |
US20150122377A1 (en) | 2015-05-07 |
CN104520448A (en) | 2015-04-15 |
CN104520448B (en) | 2017-08-11 |
CN104583424A (en) | 2015-04-29 |
JP2015525293A (en) | 2015-09-03 |
JP6374864B2 (en) | 2018-08-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2855717B1 (en) | Steel sheet and method to manufacture it | |
DE60033498T2 (en) | HOT-DIPPED GALVANIZED STEEL PLATE WITH HIGH STRENGTH AND EXCELLENT CHARACTERISTICS IN FORMING AND GALVANIZING | |
EP3027784B1 (en) | Micro-alloyed high-strength multi-phase steel containing silicon and having a minimum tensile strength of 750 mpa and improved properties and method for producing a strip from said steel | |
EP2836614B1 (en) | High-strength multi-phase steel, and method for producing a strip from said steel | |
EP3221484B1 (en) | Method for manufacturing a high-strength air-hardening multiphase steel strip having excellent processing properties | |
EP3221478B1 (en) | Hot or cold rolled strip of a high-strength air-hardening multi-phase steel comprising outstanding processing properties and method for the production a hot or cold rolled strip from said air-hardening multi-phase steel | |
DE102012013113A1 (en) | High strength multiphase steel and method of making a strip of this steel having a minimum tensile strength of 580 MPa | |
WO2009021898A1 (en) | Dual-phase steel, flat product made of such dual-phase steel and method for producing a flat product | |
WO2013113304A2 (en) | Ultrahigh-strength multiphase steel having improved properties during production and processing | |
WO2017009192A1 (en) | Ultrahigh strength multiphase steel and method for producing a cold-rolled steel strip therefrom | |
DE19610675C1 (en) | Dual phase steel for cold rolled sheet or strip - contg. manganese@, aluminium@ and silicon | |
WO2012045595A1 (en) | Multi-phase steel, cold-rolled flat product which is produced from a multi-phase steel of this type, and method for producing it | |
WO2016078644A1 (en) | Ultra high-strength air-hardening multiphase steel having excellent processing properties, and method for manufacturing a strip of said steel | |
WO2014016421A1 (en) | Cold-rolled flat steel product and method for the production thereof | |
EP3512968B1 (en) | Method for producing a flat steel product made of a manganese-containing steel, and such a flat steel product | |
EP3724359A1 (en) | High-strength, hot-rolled flat steel product with high edge crack resistance and simultaneously high bake-hardening potential, and method for producing a flat steel product of this kind | |
EP3692178B1 (en) | Method for producing a steel strip from an ultrahigh strength multiphase steel | |
EP3551776A1 (en) | Method for producing a hot or cold strip and/or a flexibly rolled flat steel product made of a high-strength manganese steel and flat steel product produced by said method | |
WO2020038883A1 (en) | Hot-rolled non-heat-treated and hot-rolled heat-treated flat steel product and method for the production thereof | |
EP3964591A1 (en) | Hot-rolled steel sheet product and method for producing a hot-rolled steel sheet product | |
WO2021213647A1 (en) | Hot-rolled flat steel product and method for the production thereof | |
WO2022184811A1 (en) | Flat steel product, method for producing same, and use of such a flat steel product |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20141205 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20180316 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R079 Ref document number: 502013014244 Country of ref document: DE Free format text: PREVIOUS MAIN CLASS: C21D0006020000 Ipc: C21D0006000000 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: C22C 38/02 20060101ALI20190725BHEP Ipc: C21D 6/02 20060101ALI20190725BHEP Ipc: C22C 38/00 20060101ALI20190725BHEP Ipc: C22C 38/06 20060101ALI20190725BHEP Ipc: C22C 38/04 20060101ALI20190725BHEP Ipc: C22C 38/54 20060101ALI20190725BHEP Ipc: C21D 8/04 20060101ALI20190725BHEP Ipc: C22C 38/28 20060101ALI20190725BHEP Ipc: C22C 38/42 20060101ALI20190725BHEP Ipc: C22C 38/58 20060101ALI20190725BHEP Ipc: C21D 6/00 20060101AFI20190725BHEP Ipc: C21D 8/02 20060101ALI20190725BHEP Ipc: C22C 38/22 20060101ALI20190725BHEP Ipc: C22C 38/44 20060101ALI20190725BHEP Ipc: C21D 9/52 20060101ALI20190725BHEP Ipc: C22C 38/50 20060101ALI20190725BHEP Ipc: C22C 38/48 20060101ALI20190725BHEP Ipc: C22C 38/32 20060101ALI20190725BHEP Ipc: C21D 9/46 20060101ALI20190725BHEP |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20190906 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BONGARDS, ANDREAS Inventor name: VOSS, SIGRUN Inventor name: PAUL, UDO Inventor name: SEBALD, ROLAND Inventor name: FELDHAUS, SEBASTIAN |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 1226938 Country of ref document: AT Kind code of ref document: T Effective date: 20200215 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502013014244 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: FP |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200614 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200522 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200423 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200422 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502013014244 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20201023 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200605 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20200630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200605 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200630 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200122 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230526 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20230620 Year of fee payment: 11 Ref country code: FR Payment date: 20230628 Year of fee payment: 11 Ref country code: DE Payment date: 20230620 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20230621 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20230622 Year of fee payment: 11 |