EP4450665A4 - STEEL SHEET AND MANUFACTURING METHODS THEREFOR - Google Patents
STEEL SHEET AND MANUFACTURING METHODS THEREFORInfo
- Publication number
- EP4450665A4 EP4450665A4 EP22907920.7A EP22907920A EP4450665A4 EP 4450665 A4 EP4450665 A4 EP 4450665A4 EP 22907920 A EP22907920 A EP 22907920A EP 4450665 A4 EP4450665 A4 EP 4450665A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel sheet
- manufacturing methods
- methods therefor
- therefor
- manufacturing
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/02—Winding-up or coiling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- 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
- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys 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 of ferrous metals or ferrous alloys 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0273—Final recrystallisation annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- 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
- C21D9/54—Furnaces for treating strips or wire
- C21D9/68—Furnace coilers; Hot coilers
-
- 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
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
-
- 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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- 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
- C22C38/16—Ferrous alloys, e.g. steel alloys containing 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
- C22C38/22—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
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- 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
- C22C38/38—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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
-
- C—CHEMISTRY; METALLURGY
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Steel (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020210179561A KR20230091218A (en) | 2021-12-15 | 2021-12-15 | High strength steel sheet having excellent formability and high yield ratio and method of manufacturing the same |
| PCT/KR2022/020302 WO2023113453A1 (en) | 2021-12-15 | 2022-12-14 | Steel sheet and manufacturing method therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4450665A1 EP4450665A1 (en) | 2024-10-23 |
| EP4450665A4 true EP4450665A4 (en) | 2025-05-21 |
Family
ID=86772996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22907920.7A Pending EP4450665A4 (en) | 2021-12-15 | 2022-12-14 | STEEL SHEET AND MANUFACTURING METHODS THEREFOR |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20250051889A1 (en) |
| EP (1) | EP4450665A4 (en) |
| JP (1) | JP2025500902A (en) |
| KR (1) | KR20230091218A (en) |
| CN (1) | CN118339324A (en) |
| MX (1) | MX2024007324A (en) |
| WO (1) | WO2023113453A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20240092658A (en) * | 2022-12-14 | 2024-06-24 | 주식회사 포스코 | Steel sheet and method for manufacturing the same |
| KR102904562B1 (en) * | 2023-10-31 | 2025-12-26 | 현대제철 주식회사 | Cold rolled steel sheet and method of manufacturing the same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2610357A1 (en) * | 2010-08-23 | 2013-07-03 | Nippon Steel & Sumitomo Metal Corporation | Cold-rolled steel sheet and process for production thereof |
| EP2671964A1 (en) * | 2011-01-31 | 2013-12-11 | JFE Steel Corporation | High-strength cold-rolled steel sheet having excellent processability and high yield ratio, and method for producing same |
| EP3255167A1 (en) * | 2015-03-25 | 2017-12-13 | JFE Steel Corporation | High-strength steel sheet and method for manufacturing same |
| WO2021141006A1 (en) * | 2020-01-08 | 2021-07-15 | 日本製鉄株式会社 | Steel sheet and method for manufacturing same |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5157375B2 (en) | 2007-11-08 | 2013-03-06 | 新日鐵住金株式会社 | High-strength cold-rolled steel sheet excellent in rigidity, deep drawability and hole expansibility, and method for producing the same |
| JP5347739B2 (en) * | 2009-06-11 | 2013-11-20 | 新日鐵住金株式会社 | Method for producing precipitation-strengthened double-phase cold-rolled steel sheet |
| JP5829977B2 (en) * | 2012-06-05 | 2015-12-09 | 株式会社神戸製鋼所 | High-strength cold-rolled steel sheet excellent in yield strength and formability and method for producing the same |
| JP6060914B2 (en) | 2014-02-05 | 2017-01-18 | Jfeスチール株式会社 | Cold rolled steel sheet and method for producing the same |
| JP6540245B2 (en) | 2015-06-04 | 2019-07-10 | 日本製鉄株式会社 | High strength steel plate excellent in shape freezing property and method for manufacturing the same |
| JP6620431B2 (en) | 2015-06-04 | 2019-12-18 | 日本製鉄株式会社 | High-strength steel sheet with excellent workability and method for producing the same |
| US12392007B2 (en) * | 2019-07-31 | 2025-08-19 | Jfe Steel Corporation | High strength steel sheet, high strength member, and methods for manufacturing the same |
| CN113718166B (en) * | 2020-05-25 | 2022-12-06 | 上海梅山钢铁股份有限公司 | Hot-dip aluminum-zinc steel plate with yield strength of 320MPa and manufacturing method thereof |
-
2021
- 2021-12-15 KR KR1020210179561A patent/KR20230091218A/en active Pending
-
2022
- 2022-12-14 WO PCT/KR2022/020302 patent/WO2023113453A1/en not_active Ceased
- 2022-12-14 CN CN202280082656.5A patent/CN118339324A/en active Pending
- 2022-12-14 JP JP2024536016A patent/JP2025500902A/en active Pending
- 2022-12-14 US US18/719,489 patent/US20250051889A1/en active Pending
- 2022-12-14 MX MX2024007324A patent/MX2024007324A/en unknown
- 2022-12-14 EP EP22907920.7A patent/EP4450665A4/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2610357A1 (en) * | 2010-08-23 | 2013-07-03 | Nippon Steel & Sumitomo Metal Corporation | Cold-rolled steel sheet and process for production thereof |
| EP2671964A1 (en) * | 2011-01-31 | 2013-12-11 | JFE Steel Corporation | High-strength cold-rolled steel sheet having excellent processability and high yield ratio, and method for producing same |
| EP3255167A1 (en) * | 2015-03-25 | 2017-12-13 | JFE Steel Corporation | High-strength steel sheet and method for manufacturing same |
| WO2021141006A1 (en) * | 2020-01-08 | 2021-07-15 | 日本製鉄株式会社 | Steel sheet and method for manufacturing same |
| EP4089192A1 (en) * | 2020-01-08 | 2022-11-16 | Nippon Steel Corporation | Steel sheet and method for manufacturing same |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2023113453A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20250051889A1 (en) | 2025-02-13 |
| JP2025500902A (en) | 2025-01-15 |
| CN118339324A (en) | 2024-07-12 |
| KR20230091218A (en) | 2023-06-23 |
| EP4450665A1 (en) | 2024-10-23 |
| WO2023113453A1 (en) | 2023-06-22 |
| MX2024007324A (en) | 2024-07-29 |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| A4 | Supplementary search report drawn up and despatched |
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| RIC1 | Information provided on ipc code assigned before grant |
Ipc: C21D 8/02 20060101ALI20250414BHEP Ipc: C21D 6/00 20060101ALI20250414BHEP Ipc: C21D 9/46 20060101ALI20250414BHEP Ipc: C22C 38/60 20060101ALI20250414BHEP Ipc: C22C 38/38 20060101ALI20250414BHEP Ipc: C22C 38/28 20060101ALI20250414BHEP Ipc: C22C 38/26 20060101ALI20250414BHEP Ipc: C22C 38/24 20060101ALI20250414BHEP Ipc: C22C 38/16 20060101ALI20250414BHEP Ipc: C22C 38/14 20060101ALI20250414BHEP Ipc: C22C 38/12 20060101ALI20250414BHEP Ipc: C22C 38/08 20060101ALI20250414BHEP Ipc: C22C 38/06 20060101ALI20250414BHEP Ipc: C22C 38/04 20060101ALI20250414BHEP Ipc: C22C 38/02 20060101ALI20250414BHEP Ipc: C22C 38/00 20060101AFI20250414BHEP |