(19)

(11)

EP 4 532 785 A1

(12)

(43) Date of publication: 09.04.2025 Bulletin 2025/15 (21) Application number: 22732649.3 (22) Date of filing: 02.06.2022

(51) International Patent Classification (IPC):  C22C 38/04(2006.01) C22C 38/06(2006.01) C22C 38/16(2006.01) C21D 9/46(2006.01) C21D 6/00(2006.01) C22C 38/02(2006.01) C22C 38/00(2006.01) C22C 38/14(2006.01) C21D 8/02(2006.01) C21D 1/18(2006.01) (52) Cooperative Patent Classification (CPC): C22C 38/04; C22C 38/02; C22C 38/06; C22C 38/001; C22C 38/16; C22C 38/14; C22C 38/002; C21D 9/46; C21D 8/0205; C21D 8/0226; C21D 1/18; C21D 6/005 (86) International application number: PCT/IB2022/055156 (87) International publication number: WO 2023/233186 (07.12.2023 Gazette 2023/49)

(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: BRACKE, Lieven 9112 Sinaai-Waas (BE) DUTTA, Aniruddha 9060 Zelzate (BE) EKIZ, Elvan 9000 Gent (BE) WATERSCHOOT, Tom 9160 Lokeren (BE) (74) Representative: Plaisant, Sophie Marie  ArcelorMittal Voie Romaine, BP30320 57283 Maizières-Lès-Metz 57283 Maizières-Lès-Metz (FR)