(19)

(11)

EP 3 884 077 A1

(12)

(43) Date of publication: 29.09.2021 Bulletin 2021/39 (21) Application number: 19808728.0 (22) Date of filing: 19.11.2019

(51) International Patent Classification (IPC):  C22C 38/00(2006.01) C22C 38/06(2006.01) C22C 38/28(2006.01) C22C 38/38(2006.01) C21D 9/48(2006.01) C21D 6/00(2006.01) C22C 38/02(2006.01) C22C 38/22(2006.01) C22C 38/32(2006.01) C21D 8/04(2006.01) C23C 2/00(2006.01) B21B 1/22(2006.01) (52) Cooperative Patent Classification (CPC): C22C 38/28; C22C 38/38; C21D 9/48; C21D 8/0426; C21D 2211/008; C21D 8/0473; C22C 38/02; C22C 38/002; C23C 2/00; C21D 6/005; C21D 2211/002; C21D 2211/005; C21D 8/0463; C21D 6/002; C22C 38/32; C22C 38/06; C22C 38/22 (86) International application number: PCT/EP2019/081761 (87) International publication number: WO 2020/104437 (28.05.2020 Gazette 2020/22)

(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: 19.11.2018 SE 1851432 (71) Applicant: SSAB Technology AB 101 21 Stockholm (SE)	(72) Inventors: JUSSILA, Petri 13300 Hämeenlinna (FI) OJA, Olli 13210 Hämeenlinna (FI) (74) Representative: Valea AB  Box 1098 405 23 Göteborg 405 23 Göteborg (SE)