EP4253587A4 - Two-phase stainless steel plate and two-phase hot-rolled stainless steel plate and method for producing a two-phase stainless steel plate - Google Patents
Two-phase stainless steel plate and two-phase hot-rolled stainless steel plate and method for producing a two-phase stainless steel plateInfo
- Publication number
- EP4253587A4 EP4253587A4 EP21898117.3A EP21898117A EP4253587A4 EP 4253587 A4 EP4253587 A4 EP 4253587A4 EP 21898117 A EP21898117 A EP 21898117A EP 4253587 A4 EP4253587 A4 EP 4253587A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- stainless steel
- steel plate
- phase
- producing
- hot
- 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
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
-
- 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
- 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
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties 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
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/008—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
- C22C38/18—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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- 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
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
-
- 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
- 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
- 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
- C21D2201/00—Treatment for obtaining particular effects
- C21D2201/05—Grain orientation
-
- 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
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)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020198585 | 2020-11-30 | ||
| PCT/JP2021/043464 WO2022114145A1 (en) | 2020-11-30 | 2021-11-26 | Dual phase stainless steel plate and dual phase stainless hot-rolled plate, and method for manufacturing dual phase stainless steel plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4253587A1 EP4253587A1 (en) | 2023-10-04 |
| EP4253587A4 true EP4253587A4 (en) | 2025-11-12 |
Family
ID=81754446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21898117.3A Pending EP4253587A4 (en) | 2020-11-30 | 2021-11-26 | Two-phase stainless steel plate and two-phase hot-rolled stainless steel plate and method for producing a two-phase stainless steel plate |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20240002969A1 (en) |
| EP (1) | EP4253587A4 (en) |
| JP (1) | JP7483049B2 (en) |
| KR (1) | KR102891296B1 (en) |
| CN (1) | CN116490625B (en) |
| WO (1) | WO2022114145A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102872309B1 (en) * | 2023-11-20 | 2025-10-15 | 국립한밭대학교 산학협력단 | Duplex steel having excellent high-temperature formability and corrosion resistance and method for heat treatment thereof |
| WO2025109835A1 (en) * | 2023-11-21 | 2025-05-30 | 日鉄ステンレス株式会社 | Ferritic/austenitic duplex stainless steel sheet, method for manufacturing same, and brake disk rotor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2246453A1 (en) * | 2008-01-22 | 2010-11-03 | Nippon Steel & Sumikin Stainless Steel Corporation | Ferrite-austenite stainless steel sheet for structural members excellent in workability and impact absorption characteristics and process for the production of the sheet |
| KR20170048658A (en) * | 2015-10-26 | 2017-05-10 | 주식회사 포스코 | Lean duplex stainless steel having improved bending property |
| WO2019132226A1 (en) * | 2017-12-26 | 2019-07-04 | 주식회사 포스코 | Lean duplex steel having improved bendability and manufacturing method therefor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4347442B2 (en) | 1998-10-29 | 2009-10-21 | 日新製鋼株式会社 | Method for producing highly corrosion-resistant stainless steel sheet for exterior building materials with excellent ability to prevent occurrence of band-like appearance unevenness |
| JP4682805B2 (en) * | 2005-10-27 | 2011-05-11 | Ｊｆｅスチール株式会社 | Ferritic stainless steel cold-rolled steel sheet excellent in press formability and manufacturing method thereof |
| JP5337473B2 (en) * | 2008-02-05 | 2013-11-06 | 新日鐵住金ステンレス株式会社 | Ferritic / austenitic stainless steel sheet with excellent ridging resistance and workability and method for producing the same |
| JP5869922B2 (en) * | 2012-03-09 | 2016-02-24 | 新日鐵住金ステンレス株式会社 | Ferrite-austenitic duplex stainless steel sheet with small in-plane anisotropy and method for producing the same |
| KR101921595B1 (en) * | 2016-12-13 | 2018-11-26 | 주식회사 포스코 | Ferritic stainless steel having excellent ridging property and excellent in surface quality and method of manufacturing the same |
| JP6811112B2 (en) * | 2017-02-09 | 2021-01-13 | 日鉄ステンレス株式会社 | Ferrite Duplex Stainless Steel Sheet and Its Manufacturing Method |
| JP7314628B2 (en) | 2019-06-05 | 2023-07-26 | セイコーエプソン株式会社 | Image processing device, image processing method, and image processing program |
-
2021
- 2021-11-26 JP JP2022565463A patent/JP7483049B2/en active Active
- 2021-11-26 US US18/039,191 patent/US20240002969A1/en active Pending
- 2021-11-26 KR KR1020237017943A patent/KR102891296B1/en active Active
- 2021-11-26 CN CN202180079295.4A patent/CN116490625B/en active Active
- 2021-11-26 EP EP21898117.3A patent/EP4253587A4/en active Pending
- 2021-11-26 WO PCT/JP2021/043464 patent/WO2022114145A1/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2246453A1 (en) * | 2008-01-22 | 2010-11-03 | Nippon Steel & Sumikin Stainless Steel Corporation | Ferrite-austenite stainless steel sheet for structural members excellent in workability and impact absorption characteristics and process for the production of the sheet |
| KR20170048658A (en) * | 2015-10-26 | 2017-05-10 | 주식회사 포스코 | Lean duplex stainless steel having improved bending property |
| WO2019132226A1 (en) * | 2017-12-26 | 2019-07-04 | 주식회사 포스코 | Lean duplex steel having improved bendability and manufacturing method therefor |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2022114145A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7483049B2 (en) | 2024-05-14 |
| CN116490625B (en) | 2025-08-19 |
| WO2022114145A1 (en) | 2022-06-02 |
| EP4253587A1 (en) | 2023-10-04 |
| JPWO2022114145A1 (en) | 2022-06-02 |
| US20240002969A1 (en) | 2024-01-04 |
| CN116490625A (en) | 2023-07-25 |
| KR20230098261A (en) | 2023-07-03 |
| KR102891296B1 (en) | 2025-11-27 |
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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 |
Effective date: 20251010 |
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| RIC1 | Information provided on ipc code assigned before grant |
Ipc: C22C 38/00 20060101AFI20251006BHEP Ipc: C21D 9/46 20060101ALI20251006BHEP Ipc: C22C 38/58 20060101ALI20251006BHEP Ipc: C22C 38/60 20060101ALI20251006BHEP Ipc: C21D 6/00 20060101ALI20251006BHEP Ipc: C21D 8/02 20060101ALI20251006BHEP Ipc: C22C 38/02 20060101ALI20251006BHEP Ipc: C22C 38/04 20060101ALI20251006BHEP Ipc: C22C 38/42 20060101ALI20251006BHEP Ipc: C22C 38/44 20060101ALI20251006BHEP Ipc: C22C 38/46 20060101ALI20251006BHEP Ipc: C22C 38/48 20060101ALI20251006BHEP Ipc: C22C 38/50 20060101ALI20251006BHEP Ipc: C22C 38/52 20060101ALI20251006BHEP Ipc: C22C 38/54 20060101ALI20251006BHEP |
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| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: NIPPON STEEL CORPORATION |