(19)
(11) EP 4 824 309 A1

(12)

(43) Date of publication:
21.10.2026 Bulletin 2026/43

(21) Application number: 24834081.2

(22) Date of filing: 12.12.2024
(51) International Patent Classification (IPC): 
C22C 38/02(2006.01)
C22C 38/06(2006.01)
B32B 15/01(2006.01)
B22D 11/00(2006.01)
B22D 11/108(2006.01)
B22D 41/58(2006.01)
C21C 7/06(2006.01)
 C22C 38/04(2006.01)
C22C 38/00(2006.01)
C21D 8/12(2026.01)
B22D 11/041(2006.01)
B22D 41/50(2006.01)
C21C 7/00(2006.01)
C22C 28/00(2006.01)
(52) Cooperative Patent Classification (CPC):
C22C 38/02; C22C 38/004; C22C 38/04; C22C 38/06; B32B 15/011; C21D 8/1205; C21D 8/1222; C22C 28/00; C21C 7/06; C21C 7/0037; B22D 41/58; B22D 41/50; B22D 11/108; B22D 11/007; B22D 11/041
(86) International application number:
PCT/IB2024/062543
(87) International publication number:
WO 2025/126092 (19.06.2025 Gazette 2025/25)
(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
GE KH MA MD TN

(30) Priority: 15.12.2023 WO PCT/IB2023/062750

(71) Applicant: ArcelorMittal
1160 Luxembourg (LU)

(72) Inventors:
  • DUPREZ, Lode
    9050 Gentbrugge (BE)
  • JACOBS, Sigrid
    9820 Merelbeke (BE)
  • BASU, Silva
    9000 Gent (BE)

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

   


(54) ELECTRICAL COMPOSITE STEEL SEMI-PRODUCT