EP4039844A4 - ULTRA-THICK HIGH-STRENGTH STEEL WITH EXCELLENT IMPACT TOUGHNESS AFTER AGING UNDER CRYOGENIC STRESS AT THE HEART OF IT AND METHOD FOR MANUFACTURING SAME - Google Patents
ULTRA-THICK HIGH-STRENGTH STEEL WITH EXCELLENT IMPACT TOUGHNESS AFTER AGING UNDER CRYOGENIC STRESS AT THE HEART OF IT AND METHOD FOR MANUFACTURING SAME Download PDFInfo
- Publication number
- EP4039844A4 EP4039844A4 EP20872512.7A EP20872512A EP4039844A4 EP 4039844 A4 EP4039844 A4 EP 4039844A4 EP 20872512 A EP20872512 A EP 20872512A EP 4039844 A4 EP4039844 A4 EP 4039844A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- core
- thick steel
- manufacturing same
- impact toughness
- strain aging
- 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
- 229910000831 Steel Inorganic materials 0.000 title 1
- 230000032683 aging Effects 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 239000010959 steel Substances 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/02—Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
-
- 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
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C21D6/001—Heat treatment of ferrous alloys containing 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 by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- 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
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 Steel (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020190121723A KR102237486B1 (ko) | 2019-10-01 | 2019-10-01 | 중심부 극저온 변형시효충격인성이 우수한 고강도 극후물 강재 및 그 제조방법 |
PCT/KR2020/013062 WO2021066402A1 (ko) | 2019-10-01 | 2020-09-25 | 중심부 극저온 변형시효충격인성이 우수한 고강도 극후물 강재 및 그 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4039844A1 EP4039844A1 (en) | 2022-08-10 |
EP4039844A4 true EP4039844A4 (en) | 2023-09-13 |
Family
ID=75338297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20872512.7A Pending EP4039844A4 (en) | 2019-10-01 | 2020-09-25 | ULTRA-THICK HIGH-STRENGTH STEEL WITH EXCELLENT IMPACT TOUGHNESS AFTER AGING UNDER CRYOGENIC STRESS AT THE HEART OF IT AND METHOD FOR MANUFACTURING SAME |
Country Status (6)
Country | Link |
---|---|
US (1) | US20220325395A1 (ja) |
EP (1) | EP4039844A4 (ja) |
JP (1) | JP7404520B2 (ja) |
KR (1) | KR102237486B1 (ja) |
CN (1) | CN114502762A (ja) |
WO (1) | WO2021066402A1 (ja) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170335424A1 (en) * | 2014-12-24 | 2017-11-23 | Posco | High-strength steel having superior brittle crack arrestability, and production method therefor |
WO2018030737A1 (ko) * | 2016-08-08 | 2018-02-15 | 주식회사 포스코 | 취성균열전파 저항성이 우수한 극후물 강재 및 그 제조방법 |
WO2018117767A1 (ko) * | 2016-12-23 | 2018-06-28 | 주식회사 포스코 | 저온에서의 파괴 개시 및 전파 저항성이 우수한 고강도 강재 및 그 제조방법 |
US20190093204A1 (en) * | 2014-12-24 | 2019-03-28 | Posco | High-strength steel having superior brittle crack arrestability, and production method therefor |
WO2019124945A1 (ko) * | 2017-12-22 | 2019-06-27 | 주식회사 포스코 | 저온에서의 내파괴 특성이 우수한 극지 환경용 고강도 강재 및 그 제조방법 |
WO2019132262A1 (ko) * | 2017-12-26 | 2019-07-04 | 주식회사 포스코 | 피로균열 전파 억제 특성이 우수한 구조용 고강도 강재 및 그 제조방법 |
Family Cites Families (19)
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JPH064903B2 (ja) * | 1985-04-09 | 1994-01-19 | 新日本製鐵株式会社 | 脆性き裂伝播停止特性の優れた厚鋼板およびその製造法 |
JP3968011B2 (ja) | 2002-05-27 | 2007-08-29 | 新日本製鐵株式会社 | 低温靱性および溶接熱影響部靱性に優れた高強度鋼とその製造方法および高強度鋼管の製造方法 |
JP4696615B2 (ja) * | 2005-03-17 | 2011-06-08 | 住友金属工業株式会社 | 高張力鋼板、溶接鋼管及びそれらの製造方法 |
JP5068645B2 (ja) | 2005-04-04 | 2012-11-07 | 新日本製鐵株式会社 | 延性破壊特性に優れた高強度鋼板及び高強度溶接鋼管並びにそれらの製造方法 |
JP4975304B2 (ja) | 2005-11-28 | 2012-07-11 | 新日本製鐵株式会社 | 耐水素誘起割れ性および延性破壊特性に優れた引張強さ760MPa級以上の高強度鋼板の製造方法およびその鋼板を用いた高強度鋼管の製造方法 |
KR100851189B1 (ko) | 2006-11-02 | 2008-08-08 | 주식회사 포스코 | 저온인성이 우수한 초고강도 라인파이프용 강판 및 그제조방법 |
KR100957970B1 (ko) * | 2007-12-27 | 2010-05-17 | 주식회사 포스코 | 후물 고강도 고인성 강판 및 그 제조방법 |
JP5532800B2 (ja) | 2009-09-30 | 2014-06-25 | Jfeスチール株式会社 | 耐歪時効特性に優れた低降伏比高強度高一様伸び鋼板及びその製造方法 |
BR112012024297B1 (pt) | 2010-05-27 | 2019-02-12 | Nippon Steel & Sumitomo Metal Corporation | Método de produção de uma chapa de aço |
JP6004903B2 (ja) * | 2011-11-14 | 2016-10-12 | 山九株式会社 | 大型の円環形状物品の輸送用トレーラ |
KR101465088B1 (ko) * | 2012-08-17 | 2014-11-26 | 포항공과대학교 산학협력단 | 저온 인성이 우수한 저탄소 고강도 강판 및 그 제조방법 |
KR20140098900A (ko) * | 2013-01-31 | 2014-08-11 | 현대제철 주식회사 | 고강도 극후물 강판 및 그 제조 방법 |
WO2014141633A1 (ja) | 2013-03-12 | 2014-09-18 | Jfeスチール株式会社 | 多層溶接継手ctod特性に優れた厚鋼板およびその製造方法 |
JP6354790B2 (ja) | 2015-05-29 | 2018-07-11 | Jfeスチール株式会社 | 高強度高靭性鋼管用鋼板の製造方法及び高強度高靭性鋼管用鋼板 |
KR101726082B1 (ko) * | 2015-12-04 | 2017-04-12 | 주식회사 포스코 | 취성균열전파 저항성 및 용접부 취성균열개시 저항성이 우수한 고강도 강재 및 그 제조방법 |
JP6682967B2 (ja) | 2016-04-06 | 2020-04-15 | 日本製鉄株式会社 | 厚鋼板およびその製造方法 |
JP6665659B2 (ja) | 2016-04-21 | 2020-03-13 | 日本製鉄株式会社 | 厚鋼板およびその製造方法 |
KR101917456B1 (ko) * | 2016-12-22 | 2018-11-09 | 주식회사 포스코 | 표면부 nrl-dwt 물성이 우수한 극후물 강재 및 그 제조방법 |
KR102031451B1 (ko) | 2017-12-24 | 2019-10-11 | 주식회사 포스코 | 저온인성이 우수한 저항복비 고강도 강관용 강재 및 그 제조방법 |
-
2019
- 2019-10-01 KR KR1020190121723A patent/KR102237486B1/ko active IP Right Grant
-
2020
- 2020-09-25 CN CN202080068574.6A patent/CN114502762A/zh active Pending
- 2020-09-25 EP EP20872512.7A patent/EP4039844A4/en active Pending
- 2020-09-25 JP JP2022520044A patent/JP7404520B2/ja active Active
- 2020-09-25 US US17/763,820 patent/US20220325395A1/en active Pending
- 2020-09-25 WO PCT/KR2020/013062 patent/WO2021066402A1/ko unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170335424A1 (en) * | 2014-12-24 | 2017-11-23 | Posco | High-strength steel having superior brittle crack arrestability, and production method therefor |
US20190093204A1 (en) * | 2014-12-24 | 2019-03-28 | Posco | High-strength steel having superior brittle crack arrestability, and production method therefor |
WO2018030737A1 (ko) * | 2016-08-08 | 2018-02-15 | 주식회사 포스코 | 취성균열전파 저항성이 우수한 극후물 강재 및 그 제조방법 |
WO2018117767A1 (ko) * | 2016-12-23 | 2018-06-28 | 주식회사 포스코 | 저온에서의 파괴 개시 및 전파 저항성이 우수한 고강도 강재 및 그 제조방법 |
WO2019124945A1 (ko) * | 2017-12-22 | 2019-06-27 | 주식회사 포스코 | 저온에서의 내파괴 특성이 우수한 극지 환경용 고강도 강재 및 그 제조방법 |
WO2019132262A1 (ko) * | 2017-12-26 | 2019-07-04 | 주식회사 포스코 | 피로균열 전파 억제 특성이 우수한 구조용 고강도 강재 및 그 제조방법 |
Non-Patent Citations (1)
Title |
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See also references of WO2021066402A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP7404520B2 (ja) | 2023-12-25 |
JP2022550795A (ja) | 2022-12-05 |
CN114502762A (zh) | 2022-05-13 |
US20220325395A1 (en) | 2022-10-13 |
EP4039844A1 (en) | 2022-08-10 |
WO2021066402A1 (ko) | 2021-04-08 |
KR102237486B1 (ko) | 2021-04-08 |
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