EP4098765A4 - Hochkorrosionsbeständiger martensitischer rostfreier stahl und herstellungsverfahren dafür - Google Patents

Hochkorrosionsbeständiger martensitischer rostfreier stahl und herstellungsverfahren dafür Download PDF

Info

Publication number
EP4098765A4
EP4098765A4 EP20925160.2A EP20925160A EP4098765A4 EP 4098765 A4 EP4098765 A4 EP 4098765A4 EP 20925160 A EP20925160 A EP 20925160A EP 4098765 A4 EP4098765 A4 EP 4098765A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing
stainless steel
method therefor
martensitic stainless
highly anticorrosive
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
EP20925160.2A
Other languages
English (en)
French (fr)
Other versions
EP4098765A1 (de
Inventor
Byoung-Jun Song
Junghyun KONG
Yongho Kim
Seongin JEONG
Gyujin JO
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 EP4098765A1 publication Critical patent/EP4098765A1/de
Publication of EP4098765A4 publication Critical patent/EP4098765A4/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
    • C21D9/46—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
    • C22C38/18—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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C21D1/25—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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/78—Combined heat-treatments not provided for above
    • 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
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/04—Hardening by cooling below 0 degrees Celsius
    • 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
    • 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
    • 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
    • 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
    • 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
    • C21D8/0273—Final recrystallisation annealing
    • 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
    • C22C38/04—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
    • 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 Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
EP20925160.2A 2020-03-20 2020-10-14 Hochkorrosionsbeständiger martensitischer rostfreier stahl und herstellungsverfahren dafür Pending EP4098765A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200034294A KR102326693B1 (ko) 2020-03-20 2020-03-20 고내식 마르텐사이트계 스테인리스강 및 그 제조방법
PCT/KR2020/014029 WO2021187706A1 (ko) 2020-03-20 2020-10-14 고내식 마르텐사이트계 스테인리스강 및 그 제조방법

Publications (2)

Publication Number Publication Date
EP4098765A1 EP4098765A1 (de) 2022-12-07
EP4098765A4 true EP4098765A4 (de) 2024-04-24

Family

ID=77768211

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20925160.2A Pending EP4098765A4 (de) 2020-03-20 2020-10-14 Hochkorrosionsbeständiger martensitischer rostfreier stahl und herstellungsverfahren dafür

Country Status (7)

Country Link
US (1) US20230107193A1 (de)
EP (1) EP4098765A4 (de)
JP (1) JP7617937B2 (de)
KR (1) KR102326693B1 (de)
CN (1) CN115667569A (de)
CA (1) CA3171590A1 (de)
WO (1) WO2021187706A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20240125543A (ko) * 2021-12-20 2024-08-19 주식회사 포스코 연화저항성이 향상된 마르텐사이트계 스테인리스강 및 그 제조방법
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
JP2024090519A (ja) * 2022-12-23 2024-07-04 大同特殊鋼株式会社 水素ガス環境用マルテンサイト系ステンレス鋼材及びその製造方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1150203A (ja) * 1997-07-31 1999-02-23 Nippon Steel Corp 表面高硬度、高耐食性、高靭性マルテンサイト系ステンレス鋼
EP0994199A1 (de) * 1998-10-05 2000-04-19 Sumitomo Metal Industries, Ltd. Rostfreier Stahl für eine Dichtung und Herstellungsverfahren dafür
EP1541702A1 (de) * 2003-12-03 2005-06-15 Posco Korrosionbeständiger rostfreier martensitischer Stahl, der keine Nadelstichporen aufweist, und sein Herstellungsverfahren
JP2008163452A (ja) * 2006-12-08 2008-07-17 Nippon Steel & Sumikin Stainless Steel Corp 耐食性に優れるマルテンサイト系ステンレス鋼
CN101372734A (zh) * 2007-08-24 2009-02-25 宝山钢铁股份有限公司 一种马氏体不锈钢及其制造方法
JP2009203528A (ja) * 2008-02-28 2009-09-10 Nippon Steel & Sumikin Stainless Steel Corp 耐食性と耐磨耗性に優れる織機部材用マルテンサイト系ステンレス鋼とその鋼帯の製造方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS527818A (en) * 1975-07-09 1977-01-21 Kawasaki Steel Corp Process for producing rust proofing, medium carbon, martensitic, chrom ium stainless steel
JP3340225B2 (ja) * 1993-01-12 2002-11-05 新日本製鐵株式会社 耐銹性に優れた高強度マルテンサイト系ステンレス鋼およびドリリングタッピンねじ
KR100523107B1 (ko) * 2000-06-23 2005-10-19 주식회사 포스코 420계열 마르텐사이트계 스테인레스 열연강판의열처리방법
JP4857811B2 (ja) * 2006-02-27 2012-01-18 Ｊｆｅスチール株式会社 刃物用鋼
JP5335502B2 (ja) 2009-03-19 2013-11-06 新日鐵住金ステンレス株式会社 耐食性に優れたマルテンサイト系ステンレス鋼
CN101693982B (zh) * 2009-09-30 2011-06-01 山西太钢不锈钢股份有限公司 一种刃具用马氏体耐腐蚀钢板及其制造方法
KR101356951B1 (ko) * 2011-12-26 2014-01-28 주식회사 포스코 고경도 마르텐사이트계 스테인리스강 및 그 제조방법
KR101423826B1 (ko) * 2012-07-16 2014-07-25 주식회사 포스코 마르텐사이트계 스테인리스강 및 그 제조방법
KR101648271B1 (ko) * 2014-11-26 2016-08-12 주식회사 포스코 항균성이 우수한 고경도 마르텐사이트계 스테인리스강 및 이의 제조방법
US10655195B2 (en) * 2015-04-21 2020-05-19 Jfe Steel Corporation Martensitic stainless steel
US20190040506A1 (en) * 2016-03-04 2019-02-07 Hitachi Metals, Ltd. Martensitic stainless steel member and method for manufacturing same, and martensitic stainless steel component and method for manufacturing same
KR101834996B1 (ko) * 2016-10-19 2018-03-06 주식회사 포스코 경화능이 우수한 고경도 마르텐사이트계 스테인리스강 및 이의 제조 방법

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1150203A (ja) * 1997-07-31 1999-02-23 Nippon Steel Corp 表面高硬度、高耐食性、高靭性マルテンサイト系ステンレス鋼
EP0994199A1 (de) * 1998-10-05 2000-04-19 Sumitomo Metal Industries, Ltd. Rostfreier Stahl für eine Dichtung und Herstellungsverfahren dafür
EP1541702A1 (de) * 2003-12-03 2005-06-15 Posco Korrosionbeständiger rostfreier martensitischer Stahl, der keine Nadelstichporen aufweist, und sein Herstellungsverfahren
JP2008163452A (ja) * 2006-12-08 2008-07-17 Nippon Steel & Sumikin Stainless Steel Corp 耐食性に優れるマルテンサイト系ステンレス鋼
CN101372734A (zh) * 2007-08-24 2009-02-25 宝山钢铁股份有限公司 一种马氏体不锈钢及其制造方法
JP2009203528A (ja) * 2008-02-28 2009-09-10 Nippon Steel & Sumikin Stainless Steel Corp 耐食性と耐磨耗性に優れる織機部材用マルテンサイト系ステンレス鋼とその鋼帯の製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021187706A1 *

Also Published As

Publication number Publication date
WO2021187706A1 (ko) 2021-09-23
KR102326693B1 (ko) 2021-11-17
CA3171590A1 (en) 2021-09-23
US20230107193A1 (en) 2023-04-06
JP2023517590A (ja) 2023-04-26
CN115667569A (zh) 2023-01-31
JP7617937B2 (ja) 2025-01-20
EP4098765A1 (de) 2022-12-07
KR20210117712A (ko) 2021-09-29

Similar Documents

Publication Publication Date Title
EP3862452A4 (de) Austenitisches edelstahlblech und verfahren zur herstellung davon
EP4137591A4 (de) Martensitischer edelstahl und herstellungsverfahren für martensitischen edelstahl
ZA202107698B (en) A cold rolled martensitic steel and a method of martensitic steel thereof
EP3640510A4 (de) Verbundrohr mit edelstahlrohr, stahlrohr und korrosionsschutzschicht sowie herstellungsverfahren dafür
EP3549760A4 (de) Gewalzte verbundstahlplatte aus superaustenitischem edelstahl und herstellungsverfahren dafür
EP4098765A4 (de) Hochkorrosionsbeständiger martensitischer rostfreier stahl und herstellungsverfahren dafür
ZA202108295B (en) A cold rolled martensitic steel and a method of martensitic steel thereof
GB202105873D0 (en) Austenite low temperature steel and preparation method therefor
EP3768868B8 (de) Schmiedeteil aus bainitischem stahl und verfahren zu dessen herstellung
EP4223892A4 (de) Stahlblech und stahlblechherstellungsverfahren
EP3594372A4 (de) Material für kaltgewalztes edelstahlblech und herstellungsverfahren dafür
EP4245880A4 (de) Herstellungsverfahren für kohlenstoffarme stickstoffhaltige austenitische edelstahlstäbe
EP4286542A4 (de) Martensitisches edelstahlmaterial
EP4089186A4 (de) Austenitisches edelstahlmaterial
EG25282A (en) Method and casting/rolling plant for the production of hot-rolled metallic strips, especially steel strips.
EP4119691A4 (de) Ferritischer edelstahl mit verbesserter korrosionsbeständigkeit und verfahren zur herstellung davon
GB202401680D0 (en) Valve, method and system
EP4123041A4 (de) Hochfestes stahlblech und verfahren zur herstellung davon
EP3623489A4 (de) Geglühtes warmgewalztes ferritisches rostfreies stahlblech und verfahren zu seiner herstellung
EP4019656A4 (de) Stahl und verfahren zur herstellung davon
EP3748030A4 (de) Warmgewalztes stahlblech mit hohem kohlenstoffgehalt und verfahren zur herstellung davon
EP4130303A4 (de) Automatenstahl und verfahren zur herstellung davon
EP4119693A4 (de) Kostengünstiger austenitischer edelstahl mit hoher festigkeit und hoher verformbarkeit und verfahren zur herstellung davon
EP3822384B8 (de) Austenitischer edelstahl mit verbesserter festigkeit
EP4339308A4 (de) Hochfestes galvanisiertes stahlblech und element sowie 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: 20220901

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: C22C0038220000

Ipc: C22C0038180000

A4 Supplementary search report drawn up and despatched

Effective date: 20240322

RIC1 Information provided on ipc code assigned before grant

Ipc: C21D 1/78 20060101ALI20240318BHEP

Ipc: C21D 1/25 20060101ALI20240318BHEP

Ipc: C21D 1/26 20060101ALI20240318BHEP

Ipc: C21D 1/18 20060101ALI20240318BHEP

Ipc: C21D 6/04 20060101ALI20240318BHEP

Ipc: C21D 6/02 20060101ALI20240318BHEP

Ipc: C21D 6/00 20060101ALI20240318BHEP

Ipc: C21D 8/02 20060101ALI20240318BHEP

Ipc: C21D 9/46 20060101ALI20240318BHEP

Ipc: C22C 38/00 20060101ALI20240318BHEP

Ipc: C22C 38/02 20060101ALI20240318BHEP

Ipc: C22C 38/04 20060101ALI20240318BHEP

Ipc: C22C 38/18 20060101AFI20240318BHEP