(19)

(11)

EP 1 831 417 A1

(12)

(43) Date of publication: 12.09.2007 Bulletin 2007/37 (21) Application number: 05819793.0 (22) Date of filing: 22.12.2005

(51) International Patent Classification (IPC):  C22C 38/42(2006.01) C22C 38/50(2006.01) C22C 38/44(2006.01) (86) International application number: PCT/SE2005/001997 (87) International publication number: WO 2006/068610 (29.06.2006 Gazette 2006/26)

(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 (30) Priority: 23.12.2004 SE 0403176 (71) Applicant: Sandvik Intellectual Property AB 811 81 Sandviken (SE)	(72) Inventor: HOLMBERG, Håkan S-802 69 Gävle (SE)