(19)
(11) EP 4 402 294 A1

(12)

(43) Date of publication:
24.07.2024 Bulletin 2024/30

(21) Application number: 22768480.0

(22) Date of filing: 26.08.2022
(51) International Patent Classification (IPC): 
C21D 1/18(2006.01)
C21D 1/673(2006.01)
C22C 38/02(2006.01)
C22C 38/22(2006.01)
C22C 38/28(2006.01)
C23C 2/06(2006.01)
 C21D 1/28(2006.01)
C21D 8/02(2006.01)
C22C 38/04(2006.01)
C22C 38/26(2006.01)
C22C 38/32(2006.01)
C23C 2/12(2006.01)
(52) Cooperative Patent Classification (CPC):
C22C 38/02; C22C 38/04; C22C 38/26; C22C 38/28; C22C 38/32; C22C 38/22; C21D 1/18; C21D 1/28; C21D 8/0226; C21D 8/0236; C23C 2/06; C21D 1/673; C21D 2211/008; C23C 2/12
(86) International application number:
PCT/IB2022/058005
(87) International publication number:
WO 2023/042018 (23.03.2023 Gazette 2023/12)
(84) Designated Contracting States:
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
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 14.09.2021 WO PCT/IB2021/058358

(71) Applicant: ArcelorMittal
1160 Luxembourg (LU)

(72) Inventors:
  • COBO, Sebastian
    57950 Montigny-Lès-Metz (FR)
  • DUMONT, Alice
    57050 Le Ban St Martin (FR)
  • DIETSCH, Pascal
    57535 Marange Silvange (FR)
  • MICHAUT, Stéphanie
    57580 Remilly (FR)

(74) Representative: Plaisant, Sophie Marie 
ArcelorMittal France Research & Development Intellectual Property 6, rue André Campra Immeuble Le Cézanne
93200 Saint-Denis
93200 Saint-Denis (FR)

   


(54) HIGH STRENGTH PRESS HARDENED STEEL PART AND METHOD OF MANUFACTURING THE SAME