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(11)

EP 3 191 612 A1

(12)

(43) Date of publication: 19.07.2017 Bulletin 2017/29 (21) Application number: 15834538.9 (22) Date of filing: 21.08.2015

(51) International Patent Classification (IPC):  C22C 38/48(2006.01) C22C 38/46(2006.01) C22C 38/42(2006.01) C21D 8/02(2006.01) C22C 38/50(2006.01) C22C 38/44(2006.01) C22C 38/58(2006.01) C21D 1/26(2006.01) (86) International application number: PCT/FI2015/050539 (87) International publication number: WO 2016/027009 (25.02.2016 Gazette 2016/08)

(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 Designated Extension States: BA ME Designated Validation States: MA (30) Priority: 21.08.2014 FI 20145735 (71) Applicant: Outokumpu Oyj 00180 Helsinki (FI)	(72) Inventor: TALONEN, Juho FI-02100 Espoo (FI)