Steel alloy, holders and holder details for plastic moulding...

Details Steel alloy, holders and holder details for plastic moulding... Steel alloy, holders and holder details for plastic moulding...

C - Chemistry, Metallurgy

22

C

C22C 38/18 (2006.01) C22C 33/02 (2006.01) C22C 38/00 (2006.01) C22C 38/40 (2006.01) C22C 38/44 (2006.01) C22C 38/46 (2006.01) C22C 38/60 (2006.01)

Patent

CA 2425893

A steel alloy suitable for holders and holder details for plastic moulding tools contains in weight-%: 0.06 - 0.15 C, 0.07 - 0.22 N, wherein the total amount of C + N shall satisfy the condition, 0.16 <= C + N <= 0.26, 0.1 - 1.0 Si, 0.1 - 2.0 Mn, 12.5 - 14.5 Cr, 0.8 - 2.5 Ni, 0.1 1.5 Mo, optionally vanadium up to max. 0.7 V, optionally, in order to improve the machinability of the steel, one or more of the elements S, Ca and O in amounts up to max. 0.25 S, max. 0.01 (100 ppm) Ca, max. 0.01 (100 ppm) O, balance iron and unavoidable impurities.

L'invention concerne un acier allié approprié à la réalisation de supports et d'éléments supports pour outils à moulure de matière plastique, renfermant, en poids: entre 0,06 % et 0,15 % de C; entre 0,07 % et 0,22 % de N, la quantité totale C + N étant telle que 0,16 <= C + N <= 0,26; entre 0,1 % et 1 % de Si; entre 0,1 % et 2 % de Mn; entre 12,5 % et 14,5 % de Cr; entre 0,8 % et 2;5 % de Ni; entre 0,1 % et 1,5 % de Mo; éventuellement du vanadium (au maximum 0,7 %); éventuellement, pour améliorer l'usinabilité de l'acier, un ou plusieurs des éléments S, Ca et O (au maximum 0,25 %,. 0,01 % (100 ppm), 0,01 % (100 ppm) respectivement pour S, Ca et O); et, pour le reste, du fer et des impuretés inévitables.

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