US20210292877A1 - Austenitic stainless steel having improved strength - Google Patents
Austenitic stainless steel having improved strength Download PDFInfo
- Publication number
- US20210292877A1 US20210292877A1 US17/266,011 US201917266011A US2021292877A1 US 20210292877 A1 US20210292877 A1 US 20210292877A1 US 201917266011 A US201917266011 A US 201917266011A US 2021292877 A1 US2021292877 A1 US 2021292877A1
- Authority
- US
- United States
- Prior art keywords
- stainless steel
- austenitic stainless
- content
- equation
- less
- 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
- 229910000963 austenitic stainless steel Inorganic materials 0.000 title claims abstract description 35
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 32
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 28
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 23
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 23
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 19
- 229910052802 copper Inorganic materials 0.000 claims abstract description 13
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 12
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000012535 impurity Substances 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 6
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 42
- 229910001566 austenite Inorganic materials 0.000 description 39
- 239000011572 manganese Substances 0.000 description 33
- 229910001220 stainless steel Inorganic materials 0.000 description 30
- 239000010935 stainless steel Substances 0.000 description 28
- 230000007797 corrosion Effects 0.000 description 25
- 238000005260 corrosion Methods 0.000 description 25
- 239000011651 chromium Substances 0.000 description 19
- 239000000463 material Substances 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 17
- 229910000734 martensite Inorganic materials 0.000 description 17
- 238000000137 annealing Methods 0.000 description 15
- 239000010949 copper Substances 0.000 description 14
- 229910000859 α-Fe Inorganic materials 0.000 description 13
- 229910000831 Steel Inorganic materials 0.000 description 12
- 229910045601 alloy Inorganic materials 0.000 description 12
- 239000000956 alloy Substances 0.000 description 12
- 230000000087 stabilizing effect Effects 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 229910052739 hydrogen Inorganic materials 0.000 description 9
- 239000001257 hydrogen Substances 0.000 description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 8
- 238000004364 calculation method Methods 0.000 description 8
- 238000009628 steelmaking Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 7
- 239000011575 calcium Substances 0.000 description 6
- 229910001039 duplex stainless steel Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000009466 transformation Effects 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- 238000005275 alloying Methods 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010405 reoxidation reaction Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- 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
- 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
- C21D8/0247—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
- 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
- C22C38/18—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
- C22C38/54—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
- 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
Definitions
- Stainless steel refers to steel that has strong corrosion resistance by suppressing corrosion, a weak point of carbon steel.
- stainless steel is classified according to its chemical composition or metal structure. According to the metal structure, stainless steel can be classified into austenite, ferrite, martensite and dual phase.
- the content of C is 0.02 to 0.14%.
- Nickel (Ni) is a strong austenite phase stabilizing element and is essential to secure good hot workability and cold workability. In particular, even when a certain amount of Mn is added, it is essential to add 2.5% or more. However, since Ni is an expensive element, it causes an increase in raw material cost when a large amount is added. Accordingly, the upper limit can be limited to 5.0% in consideration of both cost and efficiency of the steel.
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)
- Heat Treatment Of Steel (AREA)
- Materials For Medical Uses (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020180094523A KR102160735B1 (ko) | 2018-08-13 | 2018-08-13 | 강도가 향상된 오스테나이트계 스테인리스강 |
| KR10-2018-0094523 | 2018-08-13 | ||
| PCT/KR2019/009977 WO2020036370A1 (ko) | 2018-08-13 | 2019-08-08 | 강도가 향상된 오스테나이트계 스테인리스강 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20210292877A1 true US20210292877A1 (en) | 2021-09-23 |
Family
ID=69525604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US17/266,011 Pending US20210292877A1 (en) | 2018-08-13 | 2019-08-08 | Austenitic stainless steel having improved strength |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20210292877A1 (ko) |
| EP (1) | EP3822384B8 (ko) |
| KR (1) | KR102160735B1 (ko) |
| CN (1) | CN112789365B (ko) |
| FI (1) | FI3822384T3 (ko) |
| WO (1) | WO2020036370A1 (ko) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7462439B2 (ja) * | 2020-03-12 | 2024-04-05 | 日鉄ステンレス株式会社 | オーステナイト系ステンレス鋼およびｎの上限値の算出方法 |
| CN113151736A (zh) * | 2021-01-28 | 2021-07-23 | 中航上大高温合金材料有限公司 | 一种耐腐蚀双相不锈钢及其制备方法 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103627970A (zh) * | 2013-10-30 | 2014-03-12 | 振石集团东方特钢股份有限公司 | 一种含钒奥氏体不锈钢 |
| US20140338800A1 (en) * | 2012-01-20 | 2014-11-20 | Jl Materials Technology Oy | Austenitic stainless steel product and a method for manufacturing same |
| WO2015063374A1 (en) * | 2013-11-04 | 2015-05-07 | Outokumpu Oyj | Austenitic stainless steel resistant to intergranular corrosion and a method for its production |
| US20160340764A1 (en) * | 2011-10-21 | 2016-11-24 | Nippon Steel & Sumikin Stainless Steel Corporation | Duplex stainless steel, duplex stainless steel slab, and duplex stainless steel material |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000026428A1 (en) * | 1998-11-02 | 2000-05-11 | Crs Holdings, Inc. | Cr-mn-ni-cu austenitic stainless steel |
| JP3696552B2 (ja) * | 2001-04-12 | 2005-09-21 | 日新製鋼株式会社 | 加工性，冷間鍛造性に優れた軟質ステンレス鋼板 |
| WO2005073422A1 (ja) * | 2004-01-29 | 2005-08-11 | Jfe Steel Corporation | オーステナイト・フェライト系ステンレス鋼 |
| US8337749B2 (en) * | 2007-12-20 | 2012-12-25 | Ati Properties, Inc. | Lean austenitic stainless steel |
| KR101467616B1 (ko) * | 2007-12-20 | 2014-12-01 | 에이티아이 프로퍼티즈, 인코퍼레이티드 | 내부식성 린 오스테나이트계 스테인리스 강 |
| KR101056235B1 (ko) * | 2008-11-25 | 2011-08-11 | 주식회사 포스코 | 오스테나이트계 스테인리스강 냉연제품의 재질특성 예측방법 |
| SE533635C2 (sv) * | 2009-01-30 | 2010-11-16 | Sandvik Intellectual Property | Austenitisk rostfri stållegering med låg nickelhalt, samt artikel därav |
| KR20120132691A (ko) * | 2010-04-29 | 2012-12-07 | 오또꿈뿌 오와이제이 | 높은 성형성을 구비하는 페라이트-오스테나이트계 스테인리스 강의 제조 및 사용 방법 |
| JP2014001422A (ja) * | 2012-06-18 | 2014-01-09 | Nippon Steel & Sumitomo Metal | オーステナイト系ステンレス鋼板およびその製造方法 |
| KR20150074697A (ko) * | 2013-12-24 | 2015-07-02 | 주식회사 포스코 | 저 니켈 함유 스테인리스강 |
| JP6438253B2 (ja) * | 2014-09-26 | 2018-12-12 | エア・ウォーターＮｖ株式会社 | 遊技用鋼球およびその製造方法 |
| JP6763759B2 (ja) * | 2015-11-20 | 2020-09-30 | 日本精線株式会社 | 磁気特性に優れた二相系のステンレス鋼線、及び篩用、ネットコンベア用又はフィルタ用の磁性金網製品 |
| KR101952808B1 (ko) * | 2017-08-22 | 2019-02-28 | 주식회사포스코 | 열간가공성 및 내수소취성이 우수한 저Ni 오스테나이트계 스테인리스강 |
-
2018
- 2018-08-13 KR KR1020180094523A patent/KR102160735B1/ko active IP Right Grant
-
2019
- 2019-08-08 CN CN201980065501.9A patent/CN112789365B/zh active Active
- 2019-08-08 FI FIEP19849274.6T patent/FI3822384T3/fi active
- 2019-08-08 WO PCT/KR2019/009977 patent/WO2020036370A1/ko unknown
- 2019-08-08 EP EP19849274.6A patent/EP3822384B8/en active Active
- 2019-08-08 US US17/266,011 patent/US20210292877A1/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160340764A1 (en) * | 2011-10-21 | 2016-11-24 | Nippon Steel & Sumikin Stainless Steel Corporation | Duplex stainless steel, duplex stainless steel slab, and duplex stainless steel material |
| US20140338800A1 (en) * | 2012-01-20 | 2014-11-20 | Jl Materials Technology Oy | Austenitic stainless steel product and a method for manufacturing same |
| CN103627970A (zh) * | 2013-10-30 | 2014-03-12 | 振石集团东方特钢股份有限公司 | 一种含钒奥氏体不锈钢 |
| WO2015063374A1 (en) * | 2013-11-04 | 2015-05-07 | Outokumpu Oyj | Austenitic stainless steel resistant to intergranular corrosion and a method for its production |
Non-Patent Citations (1)
| Title |
|---|
| Nohara, Kiyohiko, Yutaka Ono, and Nobuo Ohashi. "Composition and grain size dependencies of strain-induced martensitic transformation in metastable austenitic stainless steels" Tetsu-to-Hagané 63.5 (1977): 772-782.) (Year: 1977) * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3822384A4 (en) | 2021-09-01 |
| WO2020036370A1 (ko) | 2020-02-20 |
| KR102160735B1 (ko) | 2020-09-28 |
| EP3822384B8 (en) | 2023-02-22 |
| CN112789365B (zh) | 2022-09-27 |
| CN112789365A (zh) | 2021-05-11 |
| EP3822384A1 (en) | 2021-05-19 |
| EP3822384B1 (en) | 2023-01-18 |
| FI3822384T3 (fi) | 2023-03-20 |
| KR20200018995A (ko) | 2020-02-21 |
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