(19)

(11)

EP 2 010 688 A1

(12)

(43) Date of publication: 07.01.2009 Bulletin 2009/02 (21) Application number: 07701607.9 (22) Date of filing: 02.02.2007

(51) International Patent Classification (IPC):  C22C 38/00(2006.01) C21D 1/00(2006.01) B22F 5/00(2006.01) B23D 45/00(2006.01) B22F 3/00(2006.01) (86) International application number: PCT/BR2007/000023 (87) International publication number: WO 2007/121542 (01.11.2007 Gazette 2007/44)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 24.04.2006 BR PI0601679 (71) Applicant: Villares Metals S/A SP - CEP 13176-900 (BR)	(72) Inventors: BARBOSA, Celso Antonio CEP 13100-081 SP, Brazil (BR) MESQUITA, Rafael Agnelli CEP 13472-080 SP, Brazil (BR) (74) Representative: Brown, Deborah Frances  Murgitroyd & Company Scotland House 165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)