CA2850101C - High-strength hot-dip galvanized steel sheet and high-strength alloyed hot-dip galvanized steel sheet having excellent plating adhesion, formability, and hole expandability with tensile strength of 980 mpa or more and manufecaturing method therefor - Google Patents
High-strength hot-dip galvanized steel sheet and high-strength alloyed hot-dip galvanized steel sheet having excellent plating adhesion, formability, and hole expandability with tensile strength of 980 mpa or more and manufecaturing method therefor Download PDFInfo
- Publication number
- CA2850101C CA2850101C CA2850101A CA2850101A CA2850101C CA 2850101 C CA2850101 C CA 2850101C CA 2850101 A CA2850101 A CA 2850101A CA 2850101 A CA2850101 A CA 2850101A CA 2850101 C CA2850101 C CA 2850101C
- Authority
- CA
- Canada
- Prior art keywords
- steel sheet
- hot
- martensite
- dip galvanized
- mass
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/013—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium
-
- 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
- C21D8/0473—Final recrystallisation annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—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
- C21D8/0478—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 surface treatment
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- C—CHEMISTRY; METALLURGY
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
- C22C18/04—Alloys based on zinc with aluminium as the next major constituent
-
- 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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing 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
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium 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
- C22C38/40—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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
-
- 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
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
-
- 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
- C23C2/26—After-treatment
- C23C2/28—Thermal after-treatment, e.g. treatment in oil bath
- C23C2/29—Cooling or quenching
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/002—Bainite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
-
- 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
- C21D2211/009—Pearlite
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12785—Group IIB metal-base component
- Y10T428/12792—Zn-base component
- Y10T428/12799—Next to Fe-base component [e.g., galvanized]
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Coating With Molten Metal (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-216967 | 2011-09-30 | ||
| JP2011216967 | 2011-09-30 | ||
| PCT/JP2012/075230 WO2013047830A1 (ja) | 2011-09-30 | 2012-09-28 | 引張強度980MPa以上有するめっき密着性、成形性と穴広げ性に優れた高強度溶融亜鉛めっき鋼板及び高強度合金化溶融亜鉛めっき鋼板とその製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2850101A1 CA2850101A1 (en) | 2013-04-04 |
| CA2850101C true CA2850101C (en) | 2017-01-17 |
Family
ID=47995853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2850101A Expired - Fee Related CA2850101C (en) | 2011-09-30 | 2012-09-28 | High-strength hot-dip galvanized steel sheet and high-strength alloyed hot-dip galvanized steel sheet having excellent plating adhesion, formability, and hole expandability with tensile strength of 980 mpa or more and manufecaturing method therefor |
Country Status (15)
| Country | Link |
|---|---|
| US (2) | US9783878B2 (enEXAMPLES) |
| EP (1) | EP2762592B1 (enEXAMPLES) |
| JP (1) | JP5403185B2 (enEXAMPLES) |
| KR (1) | KR101607786B1 (enEXAMPLES) |
| CN (1) | CN103827336B (enEXAMPLES) |
| BR (1) | BR112014007496B1 (enEXAMPLES) |
| CA (1) | CA2850101C (enEXAMPLES) |
| ES (1) | ES2670893T3 (enEXAMPLES) |
| IN (1) | IN2014DN03212A (enEXAMPLES) |
| MX (1) | MX373588B (enEXAMPLES) |
| PL (1) | PL2762592T3 (enEXAMPLES) |
| RU (1) | RU2586386C2 (enEXAMPLES) |
| TW (1) | TWI523975B (enEXAMPLES) |
| WO (1) | WO2013047830A1 (enEXAMPLES) |
| ZA (1) | ZA201402970B (enEXAMPLES) |
Families Citing this family (57)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5953693B2 (ja) * | 2011-09-30 | 2016-07-20 | 新日鐵住金株式会社 | めっき密着性と成形性に優れた高強度溶融亜鉛めっき鋼板とその製造方法 |
| ES2670893T3 (es) * | 2011-09-30 | 2018-06-01 | Nippon Steel & Sumitomo Metal Corporation | Chapa de acero galvanizado por inmersión en caliente de alta resistencia y chapa de acero aleado galvanizado por inmersión en caliente de alta resistencia, teniendo cada una de ellas una resistencia a la tracción de 980 mpa o superior, excelente adhesión de chapado, excelente formabilidad y excelentes propiedades de expansión de orificios, y método para producir las mismas |
| WO2014178358A1 (ja) | 2013-05-01 | 2014-11-06 | 新日鐵住金株式会社 | 亜鉛めっき鋼板及びその製造方法 |
| BR112015026904B1 (pt) | 2013-05-01 | 2020-04-07 | Nippon Steel & Sumitomo Metal Corp | chapa de aço resistente à soldagem por pontos e com baixo peso específico |
| JP6007882B2 (ja) * | 2013-10-15 | 2016-10-19 | 新日鐵住金株式会社 | 引張最大強度780MPaを有する衝突特性に優れた高強度鋼板、高強度溶融亜鉛めっき鋼板、並びに、高強度合金化溶融亜鉛めっき鋼板 |
| JP6007881B2 (ja) * | 2013-10-15 | 2016-10-12 | 新日鐵住金株式会社 | 引張最大強度780MPa以上を有する衝突特性に優れた高強度鋼板、高強度溶融亜鉛めっき鋼板及び高強度合金化溶融亜鉛めっき鋼板 |
| EP3075872A4 (en) * | 2013-11-29 | 2017-05-03 | Nippon Steel & Sumitomo Metal Corporation | Hot-formed steel sheet member, method for producing same, and steel sheet for hot forming |
| JP6314520B2 (ja) * | 2014-02-13 | 2018-04-25 | 新日鐵住金株式会社 | 引張最大強度1300MPa以上を有する成形性に優れた高強度鋼板、高強度溶融亜鉛めっき鋼板、及び、高強度合金化溶融亜鉛めっき鋼板とそれらの製造方法 |
| KR20170027744A (ko) | 2014-07-03 | 2017-03-10 | 아르셀러미탈 | 초고강도의 코팅된 또는 비코팅된 강 시트를 제조하기 위한 방법 및 얻어진 시트 |
| CN104213040B (zh) * | 2014-08-27 | 2016-02-17 | 南京创贝高速传动机械有限公司 | 一种高强度轴承的专用钢材及其加工工艺 |
| US20180127846A9 (en) * | 2014-10-30 | 2018-05-10 | Jfe Steel Corporation | High-strength steel sheet, high-strength hot-dip galvanized steel sheet, high-strength hot-dip aluminum-coated steel sheet, and high-strength electrogalvanized steel sheet, and methods for manufacturing same |
| MX383723B (es) * | 2015-05-07 | 2025-03-14 | Nippon Steel Corp | Placa de acero de alta resistencia y método de producción para la misma. |
| EP3309273B1 (en) * | 2015-06-11 | 2021-05-26 | Nippon Steel Corporation | Galvannealed steel sheet and method for manufacturing same |
| MX2018000520A (es) * | 2015-07-15 | 2019-04-29 | Ak Steel Properties Inc | Alta formabilidad de acero en fase dual. |
| JP6402830B2 (ja) * | 2015-08-24 | 2018-10-10 | 新日鐵住金株式会社 | 合金化溶融亜鉛めっき鋼板及びその製造方法 |
| CN105112914A (zh) * | 2015-08-31 | 2015-12-02 | 中国钢研科技集团有限公司 | 连续热镀锌装置和连续热镀锌方法 |
| US10941460B2 (en) | 2015-09-22 | 2021-03-09 | Hyundai Steel Company | Plated steel plate and manufacturing method thereof |
| JP7019574B2 (ja) | 2015-12-15 | 2022-02-15 | タタ、スティール、アイモイデン、ベスローテン、フェンノートシャップ | 高強度溶融亜鉛めっき鋼帯 |
| WO2017109540A1 (en) * | 2015-12-21 | 2017-06-29 | Arcelormittal | Method for producing a high strength steel sheet having improved ductility and formability, and obtained steel sheet |
| WO2017109538A1 (en) * | 2015-12-21 | 2017-06-29 | Arcelormittal | Method for producing a steel sheet having improved strength, ductility and formability |
| UA119946C2 (uk) * | 2015-12-29 | 2019-08-27 | Арселорміттал | Спосіб виробництва надвисокоміцної листової сталі, підданої цинкуванню з відпалюванням, і одержана листова сталь, піддана цинкуванню з відпалюванням |
| JP6338025B2 (ja) * | 2016-02-10 | 2018-06-06 | Jfeスチール株式会社 | 高強度鋼板及びその製造方法 |
| US11560606B2 (en) | 2016-05-10 | 2023-01-24 | United States Steel Corporation | Methods of producing continuously cast hot rolled high strength steel sheet products |
| US10385419B2 (en) | 2016-05-10 | 2019-08-20 | United States Steel Corporation | High strength steel products and annealing processes for making the same |
| US11993823B2 (en) | 2016-05-10 | 2024-05-28 | United States Steel Corporation | High strength annealed steel products and annealing processes for making the same |
| TWI618799B (zh) * | 2016-09-21 | 2018-03-21 | 新日鐵住金股份有限公司 | 鋼板 |
| WO2018055425A1 (en) | 2016-09-22 | 2018-03-29 | Arcelormittal | High strength and high formability steel sheet and manufacturing method |
| TWI602956B (zh) * | 2016-10-04 | 2017-10-21 | 中國鋼鐵股份有限公司 | 提高鋼材顯微組織鑑別度之分析方法 |
| CA3056594A1 (en) | 2016-11-04 | 2018-05-11 | Nucor Corporation | Multiphase, cold-rolled ultra-high strength steel |
| US11021776B2 (en) | 2016-11-04 | 2021-06-01 | Nucor Corporation | Method of manufacture of multiphase, hot-rolled ultra-high strength steel |
| CN110121568B (zh) | 2016-12-27 | 2021-02-19 | 杰富意钢铁株式会社 | 高强度镀锌钢板及其制造方法 |
| KR102264783B1 (ko) * | 2017-03-31 | 2021-06-14 | 닛폰세이테츠 가부시키가이샤 | 냉간 압연 강판 및 용융 아연 도금 냉간 압연 강판 |
| EP3604583A4 (en) * | 2017-03-31 | 2020-09-02 | Nippon Steel Corporation | HOT ROLLED SHEET, FORGED STEEL PART AND RELATED PRODUCTION PROCESSES |
| US20200071789A1 (en) * | 2017-04-20 | 2020-03-05 | Tata Steel Nederland Technology B.V. | High strength steel sheet having excellent ductility and stretch flangeability |
| WO2018203097A1 (en) | 2017-05-05 | 2018-11-08 | Arcelormittal | A method for the manufacturing of liquid metal embrittlement resistant galvannealed steel sheet |
| WO2019092483A1 (en) * | 2017-11-10 | 2019-05-16 | Arcelormittal | Cold rolled and heat treated steel sheet and a method of manufacturing thereof |
| KR102020411B1 (ko) | 2017-12-22 | 2019-09-10 | 주식회사 포스코 | 가공성이 우수한 고강도 강판 및 이의 제조방법 |
| KR102075216B1 (ko) * | 2017-12-24 | 2020-02-07 | 주식회사 포스코 | 고 항복비형 고 강도 강판 및 그 제조방법 |
| TWI650435B (zh) * | 2018-03-30 | 2019-02-11 | 日商新日鐵住金股份有限公司 | 鋼板及其製造方法 |
| KR102109261B1 (ko) | 2018-08-07 | 2020-05-11 | 주식회사 포스코 | 강도 및 도금성이 우수한 저비중 클래드 강판 및 그 제조방법 |
| KR102285523B1 (ko) * | 2019-11-20 | 2021-08-03 | 현대제철 주식회사 | 고강도 및 고성형성을 가지는 강판 및 그 제조방법 |
| KR102250333B1 (ko) * | 2019-12-09 | 2021-05-10 | 현대제철 주식회사 | 초고강도 냉연강판 및 이의 제조방법 |
| CN111334720B (zh) * | 2020-03-30 | 2022-03-25 | 邯郸钢铁集团有限责任公司 | 具有良好冷成型性能的高Al耐磨钢带及其生产方法 |
| KR102504647B1 (ko) * | 2020-09-16 | 2023-03-03 | 현대제철 주식회사 | 초고강도 냉연강판 및 그 제조방법 |
| KR102496311B1 (ko) * | 2020-09-25 | 2023-02-07 | 현대제철 주식회사 | 고강도 및 고성형성 강판 및 그 제조방법 |
| KR102497567B1 (ko) * | 2020-12-08 | 2023-02-10 | 현대제철 주식회사 | 고강도 및 고성형성 강판 및 그 제조방법 |
| CN114807737B (zh) * | 2021-01-21 | 2023-06-13 | 宝山钢铁股份有限公司 | 一种热镀锌钢及其制造方法 |
| KR102459164B1 (ko) | 2021-06-23 | 2022-10-25 | 울산과학기술원 | 강재의 신장 플랜지 성형성 평가방법 |
| KR102504097B1 (ko) * | 2021-06-29 | 2023-02-28 | 현대제철 주식회사 | 도금 강판 및 그 제조방법 |
| CN113817961B (zh) * | 2021-08-26 | 2022-06-21 | 马鞍山钢铁股份有限公司 | 彩涂基料用热浸镀锌钢板及其制造方法 |
| WO2023162522A1 (ja) * | 2022-02-24 | 2023-08-31 | Jfeスチール株式会社 | 鋼板およびその製造方法 |
| CN114737037B (zh) * | 2022-03-30 | 2023-06-27 | 马鞍山钢铁股份有限公司 | 一种基于CSP工艺的550MPa级高塑韧性热镀锌钢板及其生产方法 |
| KR102845288B1 (ko) * | 2022-09-30 | 2025-08-13 | 현대제철 주식회사 | 초고강도 강판 및 그 제조방법 |
| KR102845291B1 (ko) * | 2022-12-29 | 2025-08-13 | 현대제철 주식회사 | 고강도 냉연강판 및 그 제조방법 |
| KR102845301B1 (ko) * | 2022-12-29 | 2025-08-14 | 현대제철 주식회사 | 고강도 냉연강판 및 그 제조방법 |
| CN116043118B (zh) * | 2023-01-19 | 2023-10-27 | 鞍钢股份有限公司 | 一种超高扩孔性能980MPa级热镀锌复相钢及制备方法 |
| DE102023116669A1 (de) | 2023-06-26 | 2025-01-02 | Thyssenkrupp Steel Europe Ag | Seitenaufprallträger zur Verstärkung einer Fahrzeugtür |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59219473A (ja) | 1983-05-26 | 1984-12-10 | Nippon Steel Corp | カラ−エツチング液及びエツチング方法 |
| JPS61217529A (ja) | 1985-03-22 | 1986-09-27 | Nippon Steel Corp | 延性のすぐれた高強度鋼板の製造方法 |
| JP2526320B2 (ja) | 1991-05-07 | 1996-08-21 | 新日本製鐵株式会社 | 高張力合金化溶融亜鉛めっき鋼板の製造方法 |
| JP2526322B2 (ja) | 1991-05-23 | 1996-08-21 | 新日本製鐵株式会社 | 高張力溶融亜鉛めっき鋼板および合金化溶融亜鉛めっき鋼板の製造方法 |
| JP2601581B2 (ja) | 1991-09-03 | 1997-04-16 | 新日本製鐵株式会社 | 加工性に優れた高強度複合組織冷延鋼板の製造方法 |
| US20030015263A1 (en) * | 2000-05-26 | 2003-01-23 | Chikara Kami | Cold rolled steel sheet and galvanized steel sheet having strain aging hardening property and method for producing the same |
| JP3631710B2 (ja) * | 2001-10-01 | 2005-03-23 | 新日本製鐵株式会社 | 耐食性と延性に優れたSi含有高強度溶融亜鉛めっき鋼板及びその製造方法 |
| ES2347435T3 (es) * | 2003-03-31 | 2010-10-29 | Nippon Steel Corporation | Chapa de acero recubierta en caliente con cinc aleado y metodo para su produccion. |
| JP4192051B2 (ja) * | 2003-08-19 | 2008-12-03 | 新日本製鐵株式会社 | 高強度合金化溶融亜鉛めっき鋼板の製造方法と製造設備 |
| JP4486336B2 (ja) | 2003-09-30 | 2010-06-23 | 新日本製鐵株式会社 | 溶接性と延性に優れた高降伏比高強度冷延鋼板および高降伏比高強度溶融亜鉛めっき鋼板、並びに、高降伏比高強度合金化溶融亜鉛めっき鋼板とその製造方法 |
| TWI302572B (en) * | 2003-09-30 | 2008-11-01 | Nippon Steel Corp | High yield ratio, high strength steel sheet, high yield ratio, high strength hot dip galvanized steel sheet and high yield ratio, high strength alloyed hot dip galvanized steel sheet and process for producing same |
| JP4445365B2 (ja) * | 2004-10-06 | 2010-04-07 | 新日本製鐵株式会社 | 伸びと穴拡げ性に優れた高強度薄鋼板の製造方法 |
| JP4528184B2 (ja) | 2005-03-31 | 2010-08-18 | 新日本製鐵株式会社 | 加工性の良好な合金化溶融亜鉛メッキ高強度鋼板の製造方法 |
| JP2007270176A (ja) | 2006-03-30 | 2007-10-18 | Nippon Steel Corp | 表面外観及びめっき密着性に優れた合金化溶融亜鉛めっき鋼板 |
| JP5194811B2 (ja) * | 2007-03-30 | 2013-05-08 | Jfeスチール株式会社 | 高強度溶融亜鉛めっき鋼板 |
| JP5251208B2 (ja) * | 2008-03-28 | 2013-07-31 | Jfeスチール株式会社 | 高強度鋼板とその製造方法 |
| JP2010065272A (ja) | 2008-09-10 | 2010-03-25 | Jfe Steel Corp | 高強度鋼板およびその製造方法 |
| CN101348885B (zh) * | 2008-09-11 | 2010-06-02 | 北京科技大学 | 一种1000MPa级冷轧热镀锌双相钢及其制造方法 |
| JP5709151B2 (ja) * | 2009-03-10 | 2015-04-30 | Jfeスチール株式会社 | 成形性に優れた高強度溶融亜鉛めっき鋼板およびその製造方法 |
| JP5374193B2 (ja) | 2009-03-11 | 2013-12-25 | 株式会社神戸製鋼所 | 曲げ加工性および疲労強度に優れた溶融亜鉛めっき鋼板または合金化溶融亜鉛めっき鋼板 |
| PL2508640T3 (pl) | 2009-11-30 | 2020-02-28 | Nippon Steel Corporation | BLACHA STALOWA O DUŻEJ WYTRZYMAŁOŚCI I DOSKONAŁEJ ODPORNOŚCI NA KRUCHOŚĆ WODOROWĄ ORAZ WYTRZYMAŁOŚCI NA ROZCIĄGANIE WYNOSZĄCEJ 900 MPa LUB WIĘCEJ I SPOSÓB JEJ WYTWARZANIA |
| JP5499663B2 (ja) | 2009-11-30 | 2014-05-21 | 新日鐵住金株式会社 | 機械切断特性に優れた引張最大強度900MPa以上の高強度冷延鋼板及びその製造方法、並びに、高強度亜鉛めっき鋼板及びその製造方法 |
| JP5651964B2 (ja) * | 2010-02-16 | 2015-01-14 | 新日鐵住金株式会社 | 延性及び穴広げ性並びに耐食性に優れた合金化溶融亜鉛めっき鋼板及びその製造方法 |
| ES2670893T3 (es) * | 2011-09-30 | 2018-06-01 | Nippon Steel & Sumitomo Metal Corporation | Chapa de acero galvanizado por inmersión en caliente de alta resistencia y chapa de acero aleado galvanizado por inmersión en caliente de alta resistencia, teniendo cada una de ellas una resistencia a la tracción de 980 mpa o superior, excelente adhesión de chapado, excelente formabilidad y excelentes propiedades de expansión de orificios, y método para producir las mismas |
-
2012
- 2012-09-28 ES ES12837548.2T patent/ES2670893T3/es active Active
- 2012-09-28 PL PL12837548T patent/PL2762592T3/pl unknown
- 2012-09-28 CN CN201280047397.9A patent/CN103827336B/zh active Active
- 2012-09-28 EP EP12837548.2A patent/EP2762592B1/en active Active
- 2012-09-28 MX MX2014003712A patent/MX373588B/es active IP Right Grant
- 2012-09-28 RU RU2014116634/02A patent/RU2586386C2/ru not_active IP Right Cessation
- 2012-09-28 TW TW101135885A patent/TWI523975B/zh not_active IP Right Cessation
- 2012-09-28 CA CA2850101A patent/CA2850101C/en not_active Expired - Fee Related
- 2012-09-28 IN IN3212DEN2014 patent/IN2014DN03212A/en unknown
- 2012-09-28 JP JP2013513313A patent/JP5403185B2/ja active Active
- 2012-09-28 KR KR1020147010908A patent/KR101607786B1/ko active Active
- 2012-09-28 BR BR112014007496-8A patent/BR112014007496B1/pt not_active IP Right Cessation
- 2012-09-28 US US14/347,289 patent/US9783878B2/en active Active
- 2012-09-28 WO PCT/JP2012/075230 patent/WO2013047830A1/ja not_active Ceased
-
2014
- 2014-04-23 ZA ZA2014/02970A patent/ZA201402970B/en unknown
-
2017
- 2017-09-06 US US15/696,650 patent/US10465272B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| IN2014DN03212A (enEXAMPLES) | 2015-05-22 |
| EP2762592A1 (en) | 2014-08-06 |
| TWI523975B (zh) | 2016-03-01 |
| TW201323655A (zh) | 2013-06-16 |
| US20140342183A1 (en) | 2014-11-20 |
| PL2762592T3 (pl) | 2018-08-31 |
| JP5403185B2 (ja) | 2014-01-29 |
| US20170369979A1 (en) | 2017-12-28 |
| BR112014007496A2 (pt) | 2017-04-04 |
| US9783878B2 (en) | 2017-10-10 |
| US10465272B2 (en) | 2019-11-05 |
| RU2014116634A (ru) | 2015-11-10 |
| ZA201402970B (en) | 2015-04-29 |
| CN103827336A (zh) | 2014-05-28 |
| KR20140068222A (ko) | 2014-06-05 |
| ES2670893T3 (es) | 2018-06-01 |
| WO2013047830A1 (ja) | 2013-04-04 |
| CA2850101A1 (en) | 2013-04-04 |
| KR101607786B1 (ko) | 2016-03-30 |
| BR112014007496B1 (pt) | 2019-02-12 |
| RU2586386C2 (ru) | 2016-06-10 |
| EP2762592B1 (en) | 2018-04-25 |
| EP2762592A4 (en) | 2015-07-08 |
| MX2014003712A (es) | 2014-07-09 |
| CN103827336B (zh) | 2016-01-06 |
| MX373588B (es) | 2020-05-15 |
| JPWO2013047830A1 (ja) | 2015-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2850101C (en) | High-strength hot-dip galvanized steel sheet and high-strength alloyed hot-dip galvanized steel sheet having excellent plating adhesion, formability, and hole expandability with tensile strength of 980 mpa or more and manufecaturing method therefor | |
| CN109790601B (zh) | 钢板 | |
| KR102325717B1 (ko) | 우수한 성형성을 갖는 템퍼링되고 코팅된 강 시트 및 이의 제조 방법 | |
| JP4903915B2 (ja) | 高強度冷延鋼板及びその製造方法 | |
| EP3214197B1 (en) | High-strength steel sheet and method for manufacturing same | |
| JP5672421B1 (ja) | 高強度熱延鋼板およびその製造方法 | |
| US10995386B2 (en) | Double annealed steel sheet having high mechanical strength and ductility characteristics, method of manufacture and use of such sheets | |
| EP2762588A1 (en) | High-strength hot dip galvanized steel plate having excellent moldability, weak material anisotropy and ultimate tensile strength of 980 mpa or more, high-strength alloyed hot dip galvanized steel plate and manufacturing method therefor | |
| KR101900963B1 (ko) | 오스테나이트강의 제조 방법 | |
| EP3508601B1 (en) | High-strength steel plate and production method thereof | |
| JP5742697B2 (ja) | 強度と靭性のバランスに優れたホットスタンプ成形体及びその製造方法並びにホットスタンプ成形体用鋼板の製造方法 | |
| EP1979500A1 (en) | High manganese steel strips with excellent coatability and superior surface property, coated steel strips using steel strips and method for manufacturing the steel strips | |
| JP2017048412A (ja) | 溶融亜鉛めっき鋼板、合金化溶融亜鉛めっき鋼板、およびそれらの製造方法 | |
| JP7440799B2 (ja) | 鋼板及びその製造方法 | |
| JP7498562B2 (ja) | 自動車用高強度冷間圧延鋼板 | |
| US11186889B2 (en) | High-strength steel sheet and manufacturing method therefor | |
| JP6032173B2 (ja) | 引張最大強度980MPaを有する耐遅れ破壊特性に優れた高強度鋼板、高強度溶融亜鉛めっき鋼板、並びに、高強度合金化溶融亜鉛めっき鋼板 | |
| KR101657931B1 (ko) | 냉간 가공성, 금형 담금질성 및 표면 성상이 우수한 프레스 성형용 용융 아연도금 강판 및 그의 제조 방법 | |
| CA3236022A1 (en) | Cold rolled and heat treated steel sheet and a method of manufacturing thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20140326 |
|
| MKLA | Lapsed |
Effective date: 20220329 |
|
| MKLA | Lapsed |
Effective date: 20200928 |