EP4119692A4 - Ferritbasierter edelstahl mit verbesserten oberflächeneigenschaften und verfahren zur herstellung davon - Google Patents

Ferritbasierter edelstahl mit verbesserten oberflächeneigenschaften und verfahren zur herstellung davon

Info

Publication number
EP4119692A4
EP4119692A4 EP20933826.8A EP20933826A EP4119692A4 EP 4119692 A4 EP4119692 A4 EP 4119692A4 EP 20933826 A EP20933826 A EP 20933826A EP 4119692 A4 EP4119692 A4 EP 4119692A4
Authority
EP
European Patent Office
Prior art keywords
ferrite
stainless steel
surface characteristics
manufacturing same
improved surface
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
Application number
EP20933826.8A
Other languages
English (en)
French (fr)
Other versions
EP4119692A1 (de
Inventor
Junghyun KONG
Jin-Suk Kim
Manjin HA
Hyunwoong MIN
Hanhyuk GO
Mun-Soo Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Posco Holdings Inc
Original Assignee
Posco Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Posco Co Ltd filed Critical Posco Co Ltd
Publication of EP4119692A1 publication Critical patent/EP4119692A1/de
Publication of EP4119692A4 publication Critical patent/EP4119692A4/de
Pending legal-status Critical Current

Links

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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • 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
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
    • 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
    • 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
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—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 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
    • C21D8/0242—Flattening; Dressing; Flexing
    • 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
    • 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
    • C21D8/0273—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
    • 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
    • C21D8/0278—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips 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
    • 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
    • C22C38/02—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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/22—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
    • 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)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Heat Treatment Of Steel (AREA)
EP20933826.8A 2020-04-28 2020-10-14 Ferritbasierter edelstahl mit verbesserten oberflächeneigenschaften und verfahren zur herstellung davon Pending EP4119692A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200051690A KR102370500B1 (ko) 2020-04-28 2020-04-28 표면 특성이 향상된 페라이트계 스테인리스강 및 이의 제조방법
PCT/KR2020/014031 WO2021221245A1 (ko) 2020-04-28 2020-10-14 표면 특성이 향상된 페라이트계 스테인리스강 및 이의 제조방법

Publications (2)

Publication Number Publication Date
EP4119692A1 EP4119692A1 (de) 2023-01-18
EP4119692A4 true EP4119692A4 (de) 2025-01-08

Family

ID=78332061

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20933826.8A Pending EP4119692A4 (de) 2020-04-28 2020-10-14 Ferritbasierter edelstahl mit verbesserten oberflächeneigenschaften und verfahren zur herstellung davon

Country Status (5)

Country Link
US (1) US20230144381A1 (de)
EP (1) EP4119692A4 (de)
KR (1) KR102370500B1 (de)
CN (1) CN115461485A (de)
WO (1) WO2021221245A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116555666B (zh) * 2023-05-06 2025-09-16 北京科技大学 一种耐点蚀铁素体不锈钢及其制造方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6013060A (ja) * 1983-07-04 1985-01-23 Nippon Stainless Steel Co Ltd 耐銹性の優れたステンレス鋼光輝焼鈍材
KR20110122379A (ko) * 2010-05-04 2011-11-10 주식회사 포스코 내식성 및 표면품질이 우수한 페라이트 강판의 제조방법
KR20150068648A (ko) * 2013-12-12 2015-06-22 주식회사 포스코 내식성이 우수한 페라이트계 스테인리스 강의 제조방법 및 이로부터 제조된 페라이트계 스테인리스 강
KR20160075972A (ko) * 2014-12-19 2016-06-30 주식회사 포스코 표면 광택이 우수한 페라이트계 스테인리스강 및 그 제조방법
KR20160143900A (ko) * 2015-06-04 2016-12-15 주식회사 포스코 표면품질이 우수한 페라이트계 스테인리스 냉간압연강판 및 이의 제조 방법
KR101828282B1 (ko) * 2016-09-28 2018-02-14 주식회사 포스코 표면품질이 우수한 페라이트계 스테인리스 냉간압연강판 및 이의 제조 방법
US20190226044A1 (en) * 2016-07-01 2019-07-25 Nisshin Steel Co., Ltd. Ferritic stainless steel sheet and method for producing the same

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JP3575175B2 (ja) * 1996-08-27 2004-10-13 住友金属工業株式会社 フェライト系ステンレス鋼帯の冷間圧延方法
US6413332B1 (en) * 1999-09-09 2002-07-02 Kawasaki Steel Corporation Method of producing ferritic Cr-containing steel sheet having excellent ductility, formability, and anti-ridging properties
KR101279051B1 (ko) * 2009-12-28 2013-07-02 주식회사 포스코 페라이트계 스테인레스강 및 그 제조방법
CN102796960A (zh) * 2011-05-25 2012-11-28 宝山钢铁股份有限公司 一种具有优良塑性和表面质量的铁素体不锈钢及其制造方法
EP3202940A4 (de) * 2014-10-01 2018-05-09 Nippon Steel & Sumitomo Metal Corporation Material aus ferritischem edelstahl, separator für festpolymerbrennstoffzellen mit verwendung davon und festpolymerbrennstoffzelle
JP2016196019A (ja) * 2015-04-03 2016-11-24 日新製鋼株式会社 フェライト系ステンレス鋼板、カバー部材およびフェライト系ステンレス鋼板の製造方法
KR101921595B1 (ko) * 2016-12-13 2018-11-26 주식회사 포스코 리징성 및 표면품질이 우수한 페라이트계 스테인리스강 및 그 제조방법
CN110373604A (zh) * 2018-04-13 2019-10-25 宝钢德盛不锈钢有限公司 一种具有优良表面质量的超纯中铬铁素体不锈钢及其制造方法
KR102370505B1 (ko) * 2020-04-28 2022-03-04 주식회사 포스코 내식성이 향상된 페라이트계 스테인리스강 및 이의 제조방법

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6013060A (ja) * 1983-07-04 1985-01-23 Nippon Stainless Steel Co Ltd 耐銹性の優れたステンレス鋼光輝焼鈍材
KR20110122379A (ko) * 2010-05-04 2011-11-10 주식회사 포스코 내식성 및 표면품질이 우수한 페라이트 강판의 제조방법
KR20150068648A (ko) * 2013-12-12 2015-06-22 주식회사 포스코 내식성이 우수한 페라이트계 스테인리스 강의 제조방법 및 이로부터 제조된 페라이트계 스테인리스 강
KR20160075972A (ko) * 2014-12-19 2016-06-30 주식회사 포스코 표면 광택이 우수한 페라이트계 스테인리스강 및 그 제조방법
KR20160143900A (ko) * 2015-06-04 2016-12-15 주식회사 포스코 표면품질이 우수한 페라이트계 스테인리스 냉간압연강판 및 이의 제조 방법
US20190226044A1 (en) * 2016-07-01 2019-07-25 Nisshin Steel Co., Ltd. Ferritic stainless steel sheet and method for producing the same
KR101828282B1 (ko) * 2016-09-28 2018-02-14 주식회사 포스코 표면품질이 우수한 페라이트계 스테인리스 냉간압연강판 및 이의 제조 방법

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021221245A1 *

Also Published As

Publication number Publication date
KR20210133026A (ko) 2021-11-05
WO2021221245A1 (ko) 2021-11-04
US20230144381A1 (en) 2023-05-11
EP4119692A1 (de) 2023-01-18
KR102370500B1 (ko) 2022-03-04
CN115461485A (zh) 2022-12-09

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