EP4265790A4 - Acier renforcé présentant une dureté élevée et une excellente résistance aux chocs à basse température et son procédé de fabrication - Google Patents

Acier renforcé présentant une dureté élevée et une excellente résistance aux chocs à basse température et son procédé de fabrication

Info

Publication number
EP4265790A4
EP4265790A4 EP21906845.9A EP21906845A EP4265790A4 EP 4265790 A4 EP4265790 A4 EP 4265790A4 EP 21906845 A EP21906845 A EP 21906845A EP 4265790 A4 EP4265790 A4 EP 4265790A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing
high hardness
method therefor
temperature impact
excellent low
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
EP21906845.9A
Other languages
German (de)
English (en)
Other versions
EP4265790A1 (fr
Inventor
Seng-Ho YU
Nam-Young Cho
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 EP4265790A1 publication Critical patent/EP4265790A1/fr
Publication of EP4265790A4 publication Critical patent/EP4265790A4/fr
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
    • C22C38/02—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
    • C21D1/02—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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/60—Aqueous agents
    • 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
    • C21D6/008—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
    • 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
    • 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
    • C21D9/42—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for armour plate
    • 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
    • C22C38/002—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
    • C22C38/04—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
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • C22C38/44—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
    • 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
    • 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
    • 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)
  • Rod-Shaped Construction Members (AREA)
EP21906845.9A 2020-12-18 2021-11-04 Acier renforcé présentant une dureté élevée et une excellente résistance aux chocs à basse température et son procédé de fabrication Pending EP4265790A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200179080A KR102498144B1 (ko) 2020-12-18 2020-12-18 저온 충격인성이 우수한 고경도 방탄강 및 이의 제조방법
PCT/KR2021/015877 WO2022131540A1 (fr) 2020-12-18 2021-11-04 Acier renforcé présentant une dureté élevée et une excellente résistance aux chocs à basse température et son procédé de fabrication

Publications (2)

Publication Number Publication Date
EP4265790A1 EP4265790A1 (fr) 2023-10-25
EP4265790A4 true EP4265790A4 (fr) 2025-06-04

Family

ID=82059644

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21906845.9A Pending EP4265790A4 (fr) 2020-12-18 2021-11-04 Acier renforcé présentant une dureté élevée et une excellente résistance aux chocs à basse température et son procédé de fabrication

Country Status (4)

Country Link
EP (1) EP4265790A4 (fr)
KR (1) KR102498144B1 (fr)
AU (1) AU2021400779B2 (fr)
WO (1) WO2022131540A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120174749A1 (en) * 2007-09-25 2012-07-12 University Of Pretoria Armour steel
US20160010191A1 (en) * 2013-03-28 2016-01-14 Baoshan Iron & Steel Co., Ltd. High-hardness low-alloy wear-resistant steel sheet and method of manufacturing the same
RU2583229C1 (ru) * 2014-11-27 2016-05-10 Открытое акционерное общество "Магнитогорский металлургический комбинат" Способ производства сверхвысокопрочной листовой стали
CN109628835A (zh) * 2018-12-31 2019-04-16 钢铁研究总院 一种可冷弯成型高性能防弹钢板及其制造工艺
KR20200024400A (ko) * 2018-08-28 2020-03-09 현대제철 주식회사 강재 및 그 제조방법
KR20200035708A (ko) * 2018-09-27 2020-04-06 주식회사 포스코 우수한 경도와 충격인성을 갖는 내마모강 및 그 제조방법

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2847270B1 (fr) 2002-11-19 2004-12-24 Usinor Procede pour fabriquer une tole en acier resistant a l'abrasion et tole obtenue
JP5966730B2 (ja) * 2012-07-30 2016-08-10 Ｊｆｅスチール株式会社 耐衝撃摩耗特性に優れた耐摩耗鋼板およびその製造方法
EP2789699B1 (fr) * 2013-08-30 2016-12-28 Rautaruukki Oy Produit d'acier laminé à chaud de grande dureté et procédé de fabrication de celui-ci
US10422015B2 (en) * 2014-08-28 2019-09-24 Jfe Steel Corporation High-strength galvanized steel sheet excellent in stretch-flange formability, in-plane stability of stretch-flange formability, and bendability and method for manufacturing the same
CN105088090A (zh) 2015-08-28 2015-11-25 宝山钢铁股份有限公司 一种抗拉强度2000MPa级的防弹钢板及其制造方法
JP6801716B2 (ja) * 2016-09-21 2020-12-16 日本製鉄株式会社 冷延鋼板
KR102175570B1 (ko) * 2018-09-27 2020-11-06 주식회사 포스코 우수한 경도와 충격인성을 갖는 내마모강 및 그 제조방법

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120174749A1 (en) * 2007-09-25 2012-07-12 University Of Pretoria Armour steel
US20160010191A1 (en) * 2013-03-28 2016-01-14 Baoshan Iron & Steel Co., Ltd. High-hardness low-alloy wear-resistant steel sheet and method of manufacturing the same
RU2583229C1 (ru) * 2014-11-27 2016-05-10 Открытое акционерное общество "Магнитогорский металлургический комбинат" Способ производства сверхвысокопрочной листовой стали
KR20200024400A (ko) * 2018-08-28 2020-03-09 현대제철 주식회사 강재 및 그 제조방법
KR20200035708A (ko) * 2018-09-27 2020-04-06 주식회사 포스코 우수한 경도와 충격인성을 갖는 내마모강 및 그 제조방법
CN109628835A (zh) * 2018-12-31 2019-04-16 钢铁研究总院 一种可冷弯成型高性能防弹钢板及其制造工艺

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022131540A1 *

Also Published As

Publication number Publication date
AU2021400779B2 (en) 2025-04-17
WO2022131540A1 (fr) 2022-06-23
KR20220088238A (ko) 2022-06-27
EP4265790A1 (fr) 2023-10-25
KR102498144B1 (ko) 2023-02-08
AU2021400779A1 (en) 2023-07-06

Similar Documents

Publication Publication Date Title
EP4265797A4 (fr) Matériau d'acier hautement épais ayant une excellente résistance aux chocs à basse température et son procédé de fabrication
MX380136B (es) Lámina de acero galvanizada por inmersión en caliente de alta resistencia y método para la producción de la misma.
EP4194581A4 (fr) Plaque d'acier présentant une excellente résistance à la fragilisation par l'hydrogène et une excellente ténacité et son procédé de fabrication
MX2017009015A (es) Lámina de acero chapado de alta resistencia que tiene excelentes propiedades de chapado, trabajabilidad y mayor resistencia a las fracturas, y método para su producción.
MX2010000967A (es) Aleaciones a base de hierro de dureza elevada, tenacidad elevada y metodos para hacer las mismas.
UA117656C2 (uk) Сплави на основі заліза з високою твердістю, високою міцністю і способи їхнього виробництва
MX2018009643A (es) Lamina de acero de alta resistencia y metodo para la produccion de la misma.
MX2016012584A (es) Chapa de acero galvanizado en baño caliente aleado de alta resistencia con excelente manejabilidad y mayor resistencia de las fracturas, y metodo para su produccion.
WO2008123397A1 (fr) Tuyau en acier cémenté ayant une excellente aptitude au façonnage et son procédé de fabrication
MX2016009745A (es) Lamina de acero laminada en frio de alta resistencia y metodo para la fabricacion de la misma.
MX2017001105A (es) Lamina de acero galvanizada de alta resistencia y metodo de produccion de la misma.
CA3025617C (fr) Procede de fabrication d'une tole d'acier twip a microstructure austenitique
WO2008139702A1 (fr) Vis à billes et son procédé de fabrication
MX2017009018A (es) Lámina de acero chapado de alta resistencia que tiene excelentes propiedades de chapado, trabajabilidad y mayor resistencia a las fracturas, y método para su producción.
MX2018002607A (es) Lamina de acero delgada de alta resistencia y metodo de produccion de la misma.
EP4141132A4 (fr) Tôle en acier revêtue de zinc, élément, et procédés de fabrication de ceux-ci
MX377143B (es) Aceros de martensita con una resistencia a la traccion de 1700-2200 mpa.
MX2021010031A (es) Lamina de acero de alta resistencia y metodo para fabricar la misma.
EP4428262A4 (fr) Tôle d'acier à haute résistance ayant une excellente résistance au choc et une excellente aptitude au formage et son procédé de fabrication
EP4386103A4 (fr) Tôle d'acier haute résistance laminée à chaud présentant une excellente aptitude au formage, et procédé de fabrication associé
EP4417714A4 (fr) Tôle d'acier laminée à chaud
EP4206350A4 (fr) Acier à forte expansion de trou martensitique à faible teneur en carbone et à haute résistance et procédé de fabrication
EP3889304A4 (fr) Plaque d'acier épaisse à haute résistance pour canalisation, possédant une excellente ductilité et ténacité à basse température ainsi qu'un faible coefficient d'élasticité, et son procédé
EP4265790A4 (fr) Acier renforcé présentant une dureté élevée et une excellente résistance aux chocs à basse température et son procédé de fabrication
EP4265786A4 (fr) Acier renforcé de haute dureté présentant une excellente ténacité à l'impact à basse température et son procédé de fabrication

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: 20230622

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: C22C0038580000

Ipc: C22C0038480000

A4 Supplementary search report drawn up and despatched

Effective date: 20250502

RIC1 Information provided on ipc code assigned before grant

Ipc: C21D 1/60 20060101ALI20250425BHEP

Ipc: C21D 1/18 20060101ALI20250425BHEP

Ipc: C21D 1/02 20060101ALI20250425BHEP

Ipc: C21D 6/00 20060101ALI20250425BHEP

Ipc: C21D 8/02 20060101ALI20250425BHEP

Ipc: C21D 9/46 20060101ALI20250425BHEP

Ipc: C21D 9/42 20060101ALI20250425BHEP

Ipc: C22C 38/58 20060101ALI20250425BHEP

Ipc: C22C 38/50 20060101ALI20250425BHEP

Ipc: C22C 38/00 20060101ALI20250425BHEP

Ipc: C22C 38/44 20060101ALI20250425BHEP

Ipc: C22C 38/46 20060101ALI20250425BHEP

Ipc: C22C 38/34 20060101ALI20250425BHEP

Ipc: C22C 38/06 20060101ALI20250425BHEP

Ipc: C22C 38/04 20060101ALI20250425BHEP

Ipc: C22C 38/02 20060101ALI20250425BHEP

Ipc: C22C 38/54 20060101ALI20250425BHEP

Ipc: C22C 38/48 20060101AFI20250425BHEP