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(11)

EP 2 553 132 A1

(12)

(43) Date of publication: 06.02.2013 Bulletin 2013/06 (21) Application number: 10712049.5 (22) Date of filing: 29.03.2010

(51) International Patent Classification (IPC):  C22C 38/02(2006.01) C22C 38/06(2006.01) C22C 38/04(2006.01) (86) International application number: PCT/EP2010/054086 (87) International publication number: WO 2011/120550 (06.10.2011 Gazette 2011/40)

(84) Designated Contracting States: 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 SE SI SK SM TR (71) Applicant: Arcelormittal Investigación y Desarrollo SL 48910 Sestao, Bizkaia (ES)	(72) Inventors: ANTONISSEN, Joachim B-9971 Lembeke (BE) DE GRAVE, Eddy B-9270 Laarne (BE) MEJIA GOMEZ, Julieth, Alexandra B-9000 Gent (BE) (74) Representative: pronovem  Office Van Malderen Avenue Josse Goffin 158 1082 Bruxelles 1082 Bruxelles (BE)