(19)

(11)

EP 2 986 749 A1

(12)

(43) Date of publication: 24.02.2016 Bulletin 2016/08 (21) Application number: 14717774.5 (22) Date of filing: 15.04.2014

(51) International Patent Classification (IPC):  C22C 38/00(2006.01) C22C 38/16(2006.01) C21C 7/06(2006.01) C22C 38/04(2006.01) C21D 9/46(2006.01) C23D 5/00(2006.01) (86) International application number: PCT/EP2014/057601 (87) International publication number: WO 2014/170315 (23.10.2014 Gazette 2014/43)

(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 (30) Priority: 15.04.2013 EP 13001949 (71) Applicant: Tata Steel IJmuiden BV 1951 JZ Velsen-Noord (NL)	(72) Inventors: VAN KREVEL, Joost Willem Hendrik NL-1970 CA IJmuiden (NL) VAN DUIJN, Ronald NL-1970 CA IJmuiden (NL) (74) Representative: Kruit, Jan  Tata Steel Group Intellectual Property Services P.O. Box 10000 1970 CA IJmuiden 1970 CA IJmuiden (NL)