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(11)

EP 3 122 486 A1

(12)

(43) Date of publication: 01.02.2017 Bulletin 2017/05 (21) Application number: 15719148.7 (22) Date of filing: 23.03.2015

(51) International Patent Classification (IPC):  B21D 37/16(2006.01) C21D 9/46(2006.01) C22C 38/38(2006.01) C22C 38/04(2006.01) C23C 30/00(2006.01) C21D 8/02(2006.01) C22C 38/00(2006.01) C22C 38/02(2006.01) C22C 38/06(2006.01) (86) International application number: PCT/EP2015/025015 (87) International publication number: WO 2015/144318 (01.10.2015 Gazette 2015/39)

(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 (30) Priority: 28.03.2014 EP 14162370 (71) Applicant: Tata Steel IJmuiden BV 1951 JZ Velsen-Noord (NL)	(72) Inventors: HANLON, David Neal NL-1951 JZ Velsen-Noord (NL) VAN BOHEMEN, Stefanus Matheus Cornelis NL-1951 JZ Velsen-Noord (NL) HENSEN, Guido Cornelis NL-1951 JZ Velsen-Noord (NL) (74) Representative: Kruit, Jan  Tata Steel Group Intellectual Property Services P.O. Box 10000 1970 CA IJmuiden 1970 CA IJmuiden (NL)