EP4265784A4 - Martensitischer edelstahl mit verbesserter festigkeit und korrosionsbeständigkeit und herstellungsverfahren dafür - Google Patents

Martensitischer edelstahl mit verbesserter festigkeit und korrosionsbeständigkeit und herstellungsverfahren dafür Download PDF

Info

Publication number
EP4265784A4
EP4265784A4 EP21911281.0A EP21911281A EP4265784A4 EP 4265784 A4 EP4265784 A4 EP 4265784A4 EP 21911281 A EP21911281 A EP 21911281A EP 4265784 A4 EP4265784 A4 EP 4265784A4
Authority
EP
European Patent Office
Prior art keywords
stainless steel
corrosion resistance
manufacturing same
martensitic stainless
improved strength
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
EP21911281.0A
Other languages
English (en)
French (fr)
Other versions
EP4265784A1 (de
Inventor
Byoung-Jun Song
Youngjin Kwon
Gyujin JO
Nayeon CHU
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 EP4265784A1 publication Critical patent/EP4265784A1/de
Publication of EP4265784A4 publication Critical patent/EP4265784A4/de
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
    • 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
    • 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
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C21D1/22—Martempering
    • 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
    • C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
    • 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
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/02—Hardening by precipitation
    • 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
    • C21D8/0247—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
    • C21D8/0268—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment between cold rolling steps
    • 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
    • C22C38/18—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
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • C21D2211/004—Dispersions; Precipitations
    • 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
    • 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
    • C21D2211/008—Martensite

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)
EP21911281.0A 2020-12-21 2021-11-29 Martensitischer edelstahl mit verbesserter festigkeit und korrosionsbeständigkeit und herstellungsverfahren dafür Pending EP4265784A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200180359A KR20220089588A (ko) 2020-12-21 2020-12-21 강도 및 내식성이 향상된 마르텐사이트계 스테인리스강 및 이의 제조 방법
PCT/KR2021/017715 WO2022139214A1 (ko) 2020-12-21 2021-11-29 강도 및 내식성이 향상된 마르텐사이트계 스테인리스강 및 이의 제조 방법

Publications (2)

Publication Number Publication Date
EP4265784A1 EP4265784A1 (de) 2023-10-25
EP4265784A4 true EP4265784A4 (de) 2024-09-25

Family

ID=82158192

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21911281.0A Pending EP4265784A4 (de) 2020-12-21 2021-11-29 Martensitischer edelstahl mit verbesserter festigkeit und korrosionsbeständigkeit und herstellungsverfahren dafür

Country Status (6)

Country Link
US (1) US20240271240A1 (de)
EP (1) EP4265784A4 (de)
JP (1) JP7673202B2 (de)
KR (2) KR20220089588A (de)
CN (1) CN116745455A (de)
WO (1) WO2022139214A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115896591A (zh) * 2022-10-28 2023-04-04 中国科学院金属研究所 一种提升低碳马氏体不锈钢抗腐蚀性能和综合力学性能的方法
CN117363959A (zh) * 2023-10-19 2024-01-09 甘肃酒钢集团宏兴钢铁股份有限公司 一种钒铁合金化马氏体不锈钢的冶炼工艺方法
WO2026024018A1 (ko) * 2024-07-23 2026-01-29 주식회사 포스코 마르텐사이트계 스테인리스강 및 그 제조방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3031942A1 (de) * 2014-12-09 2016-06-15 voestalpine Precision Strip AB Rostfreies Stahlband für Klappenventile
CN107723616A (zh) * 2017-10-23 2018-02-23 江苏延汉材料科技有限公司 一种马氏体不锈钢及其制造方法
CN108300945A (zh) * 2018-04-30 2018-07-20 江苏延汉材料科技有限公司 一种制造手术刀刀片的马氏体不锈钢及其制造方法
CN108642408A (zh) * 2018-07-10 2018-10-12 中国科学院金属研究所 一种高碳高铬马氏体不锈钢及其制备方法
WO2020245285A1 (en) * 2019-06-05 2020-12-10 Ab Sandvik Materials Technology A martensitic stainless alloy

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5939018A (en) * 1984-10-10 1999-08-17 Kawasaki Steel Corporation Martensitic stainless steels for seamless steel pipe
JP2968844B2 (ja) * 1995-01-13 1999-11-02 日立金属株式会社 耐孔食性の優れた高硬度マルテンサイト系ステンレス鋼
KR100210522B1 (ko) * 1995-01-13 1999-07-15 다나카 히사노리 우수한 내점식성을 갖는 고경도 말텐사이트계 스테인레스 스틸
MY114984A (en) * 1995-01-13 2003-03-31 Hitachi Metals Ltd High hardness martensitic stainless steel with good pitting corrosion resistance
JPH1018001A (ja) * 1996-07-01 1998-01-20 Hitachi Metals Ltd 耐孔食性の優れた高硬度マルテンサイト系ステンレス鋼
CN105934530B (zh) * 2014-12-09 2017-08-08 奥钢联精密带钢公司 用于舌形阀的不锈钢
JP6492869B2 (ja) * 2015-03-30 2019-04-03 新日鐵住金株式会社 溶接性と加工性に優れた高強度冷延鋼板とその製造方法
CN106086631B (zh) * 2016-08-23 2018-05-01 钢铁研究总院 高硬度高耐磨高氮马氏体不锈轴承钢及其制备方法
SE541151C2 (en) * 2017-10-05 2019-04-16 Uddeholms Ab Stainless steel
JP7267702B2 (ja) 2018-09-27 2023-05-02 日鉄ステンレス株式会社 冷間加工性に優れる高硬度・高耐食性用途のマルテンサイト系ステンレス鋼である棒鋼及びその製造方法
JP7404792B2 (ja) 2018-12-04 2023-12-26 株式会社プロテリアル マルテンサイト系ステンレス鋼部品およびその製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3031942A1 (de) * 2014-12-09 2016-06-15 voestalpine Precision Strip AB Rostfreies Stahlband für Klappenventile
CN107723616A (zh) * 2017-10-23 2018-02-23 江苏延汉材料科技有限公司 一种马氏体不锈钢及其制造方法
CN108300945A (zh) * 2018-04-30 2018-07-20 江苏延汉材料科技有限公司 一种制造手术刀刀片的马氏体不锈钢及其制造方法
CN108642408A (zh) * 2018-07-10 2018-10-12 中国科学院金属研究所 一种高碳高铬马氏体不锈钢及其制备方法
WO2020245285A1 (en) * 2019-06-05 2020-12-10 Ab Sandvik Materials Technology A martensitic stainless alloy

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022139214A1 *

Also Published As

Publication number Publication date
KR20230123913A (ko) 2023-08-24
JP7673202B2 (ja) 2025-05-08
JP2024500865A (ja) 2024-01-10
CN116745455A (zh) 2023-09-12
KR102805613B1 (ko) 2025-05-13
WO2022139214A1 (ko) 2022-06-30
US20240271240A1 (en) 2024-08-15
EP4265784A1 (de) 2023-10-25
KR20220089588A (ko) 2022-06-28

Similar Documents

Publication Publication Date Title
EP4265784A4 (de) Martensitischer edelstahl mit verbesserter festigkeit und korrosionsbeständigkeit und herstellungsverfahren dafür
EP3901318A4 (de) Hochfestes galvanisiertes stahlblech mit ausgezeichneter elektrischer widerstandspunktschweissbarkeit und verfahren zu seiner herstellung
EP4166685A4 (de) Ultrahochfester stahl mit hervorragender umformbarkeit und verfahren zu seiner herstellung
EP3901308A4 (de) Hochfestes stahlblech mit ausgezeichneter duktilität und bearbeitbarkeit und verfahren zur herstellung davon
EP4265361A4 (de) Geschweisstes strukturelement mit hervorragender rissbeständigkeit und herstellungsverfahren dafür
EP3733918A4 (de) Mit einer zinklegierung plattiertes stahlmaterial mit ausgezeichneter korrosionsbeständigkeit nach verarbeitung und verfahren zu seiner herstellung
EP3875623A4 (de) Hochfeste stahlplatte und herstellungsverfahren dafür
EP3896184A4 (de) Hochfestes stahlblech mit ausgezeichneter formbarkeit und schlagzähigkeit und verfahren zur herstellung von hochfestem stahlblech mit ausgezeichneter formbarkeit und schlagzähigkeit
EP3561111A4 (de) Dickes stahlblech mit hervorragender kryogener schlagfestigkeit und herstellungsverfahren dafür
EP3865600A4 (de) Hochfester nichtmagnetischer austenitischer edelstahl und verfahren zu seiner herstellung
EP4079898A4 (de) Hochfestes stahlblech mit hervorragender verarbeitbarkeit und verfahren zu seiner herstellung
EP3358029A4 (de) Hochfestes edelstahlblech mit hervorragenden ermüdungseigenschaften und verfahren zur herstellung davon
EP4265764A4 (de) Hochfestes stahlblech mit hervorragender bearbeitbarkeit und verfahren zur herstellung davon
EP4361303A4 (de) Hochfeste stahlplatte, hochfeste beschichtete stahlplatte, verfahren zur herstellung davon und element
EP3828301A4 (de) Hochfestes stahlblech mit hervorragender schlagfestigkeitseigenschaft und verfahren zur herstellung davon
EP4119697A4 (de) Ferritischer edelstahl und verfahren zur herstellung davon
EP4079914A4 (de) Nicht wärmebehandelter giesswalzdraht, der eine ausgezeichnete ziehbarkeit und schlagzähigkeit aufweist, und verfahren zum herstellen desselben
EP4265367A4 (de) Geschweisstes element mit hervorragender ermüdungsfestigkeit eines geschweissten teils und verfahren zur herstellung davon
EP4079894A4 (de) Hochfestes stahlblech, das hervorragende verarbeitbarkeit aufweist, und verfahren zum herstellen desselben
EP4071262A4 (de) Dicker verbundphasenstahl mit ausgezeichneter dauerhaftigkeit und verfahren zu seiner herstellung
EP3498877A4 (de) Hochfestes stahlblech mit ausgezeichneter formbarkeit und herstellungsverfahren dafür
EP3889302A4 (de) Chrom-molybdän-stahlblech mit ausgezeichneter kriechfestigkeit und verfahren zur herstellung davon
EP3978643A4 (de) Austenitischer rostfreier stahl mit verbesserter festigkeit und verfahren zu seiner herstellung
EP3904565A4 (de) Ni-plattiertes stahlblech mit ausgezeichneter korrosionsbeständigkeit nach der bearbeitung und herstellungsverfahren dafür
EP4361305A4 (de) Austenitischer edelstahl und verfahren zur herstellung davon

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20230620

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Free format text: PREVIOUS MAIN CLASS: C22C0038460000

Ipc: C22C0038440000

A4 Supplementary search report drawn up and despatched

Effective date: 20240823

RIC1 Information provided on ipc code assigned before grant

Ipc: C21D 1/26 20060101ALI20240819BHEP

Ipc: C21D 1/25 20060101ALI20240819BHEP

Ipc: C21D 1/22 20060101ALI20240819BHEP

Ipc: C21D 1/18 20060101ALI20240819BHEP

Ipc: C21D 6/02 20060101ALI20240819BHEP

Ipc: C21D 6/00 20060101ALI20240819BHEP

Ipc: C21D 8/02 20060101ALI20240819BHEP

Ipc: C21D 9/46 20060101ALI20240819BHEP

Ipc: C22C 38/00 20060101ALI20240819BHEP

Ipc: C22C 38/04 20060101ALI20240819BHEP

Ipc: C22C 38/02 20060101ALI20240819BHEP

Ipc: C22C 38/42 20060101ALI20240819BHEP

Ipc: C22C 38/46 20060101ALI20240819BHEP

Ipc: C22C 38/44 20060101AFI20240819BHEP