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(11)

EP 4 555 119 A1

(12)

(43) Date of publication: 21.05.2025 Bulletin 2025/21 (21) Application number: 22754915.1 (22) Date of filing: 12.07.2022

(51) International Patent Classification (IPC):  C22C 38/50(2006.01) C22C 38/00(2006.01) C22C 38/46(2006.01) C22C 38/42(2006.01) C21D 8/02(2006.01) C21D 6/02(2006.01) C21D 1/19(2006.01) C22C 38/06(2006.01) C22C 38/44(2006.01) C22C 38/48(2006.01) C21D 9/46(2006.01) C21D 6/00(2006.01) C21D 1/18(2006.01) C21D 1/22(2006.01) (52) Cooperative Patent Classification (CPC): C22C 38/06; C22C 38/50; C22C 38/004; C22C 38/44; C22C 38/46; C22C 38/48; C22C 38/42; C22C 38/002; C21D 9/46; C21D 8/0205; C21D 8/0226; C21D 6/004; C21D 6/02; C21D 1/18; C21D 1/19; C21D 1/22 (86) International application number: PCT/IB2022/056421 (87) International publication number: WO 2024/013542 (18.01.2024 Gazette 2024/03)

(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 (71) Applicant: ArcelorMittal 1160 Luxembourg (LU)	(72) Inventors: MOLI SANCHEZ, Laura 9000 Ghent (BE) VAN STEENBERGE, Nele 9052 Gent (BE) CISSE, Sarata 71200 Le Creusot (FR) WATERSCHOOT, Tom 9160 Lokeren (BE) (74) Representative: Plaisant, Sophie Marie  ArcelorMittal Voie Romaine, BP30320 57283 Maizières-Lès-Metz 57283 Maizières-Lès-Metz (FR)