(19)

(11)

EP 2 683 839 A1

(12)

(43) Date of publication: 15.01.2014 Bulletin 2014/03 (21) Application number: 12708008.3 (22) Date of filing: 07.03.2012

(51) International Patent Classification (IPC):  C21D 8/02(2006.01) C22C 38/04(2006.01) C23C 2/28(2006.01) C21D 9/46(2006.01) C23C 2/06(2006.01) C23C 2/40(2006.01) (86) International application number: PCT/EP2012/053856 (87) International publication number: WO 2012/120020 (13.09.2012 Gazette 2012/37)

(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: 07.03.2011 EP 11157239 (71) Applicant: Tata Steel Nederland Technology B.V. 1970 CA IJmuiden (NL)	(72) Inventors: HANLON, David Neal NL-1970 CA Ijmuiden (NL) VAN BOHEMEN, Stefanus Matheus Cornelis 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)