(19)

(11)

EP 2 714 943 A1

(12)

(43) Date of publication: 09.04.2014 Bulletin 2014/15 (21) Application number: 12724955.5 (22) Date of filing: 25.05.2012

(51) International Patent Classification (IPC):  C21C 7/076(2006.01) C21C 7/00(2006.01) C21C 7/06(2006.01) (86) International application number: PCT/EP2012/059881 (87) International publication number: WO 2012/163849 (06.12.2012 Gazette 2012/49)

(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 (30) Priority: 27.05.2011 EP 11167992 (71) Applicant: Tata Steel Nederland Technology B.V. 1970 CA IJmuiden (NL)	(72) Inventors: TIEKINK, Wouter Karel NL-1970 CA Ijmuiden (NL) VAN DER KNOOP, Willem NL-1970 CA Ijmuiden (NL) (74) Representative: Bodin, Andre  Tata Steel Nederland Technology BV Group Intellectual Property Services PO Box 10000-3G.37 1970 CA IJmuiden 1970 CA IJmuiden (NL)