(19)

(11)

EP 3 559 295 A1

(12)

(43) Date of publication: 30.10.2019 Bulletin 2019/44 (21) Application number: 17818553.4 (22) Date of filing: 18.12.2017

(51) International Patent Classification (IPC):  C22C 38/00(2006.01) C21D 8/06(2006.01) C21D 9/46(2006.01) C22C 38/02(2006.01) C22C 38/42(2006.01) C22C 38/46(2006.01) C21D 6/00(2006.01) C21D 8/02(2006.01) C21D 9/02(2006.01) C21D 9/52(2006.01) C22C 38/04(2006.01) C22C 38/44(2006.01) C22C 38/58(2006.01) (86) International application number: PCT/EP2017/083408 (87) International publication number: WO 2018/114865 (28.06.2018 Gazette 2018/26)

(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: MA MD TN (30) Priority: 21.12.2016 EP 16205963 (71) Applicant: Sandvik Intellectual Property AB 811 81 Sandviken (SE)	(72) Inventor: FORSMAN, Tomas SE-818 91 Valbo (SE) (74) Representative: Sandvik  Sandvik Intellectual Property AB 811 81 Sandviken 811 81 Sandviken (SE)