(19)

(11)

EP 2 807 283 A1

(12)

(43) Date of publication: 03.12.2014 Bulletin 2014/49 (21) Application number: 13702617.5 (22) Date of filing: 25.01.2013

(51) International Patent Classification (IPC):  C22C 38/04(2006.01) C21D 9/04(2006.01) C21D 6/00(2006.01) (86) International application number: PCT/EP2013/051517 (87) International publication number: WO 2013/110798 (01.08.2013 Gazette 2013/31)

(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: 25.01.2012 EP 12152514 03.02.2012 EP 12153948 03.02.2012 US 201261595014 P (71) Applicant: Tata Steel UK Ltd. 1970 CA IJmuiden (NL)	(72) Inventors: DENG, Lifen NL-1970 CA IJmuiden (NL) JERATH, Vijay NL-1970 CA IJmuiden (NL) JAISWAL, Shreekant 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)