Disc for CAD/CAM system, based on CoCr, free of nickel and beryllium which fulfils the requirement of the standard EN ISO 22674 for non-precious alloys and ISO 9693-1 for alloys intended for porcelain fused to metal restorations. It is made of biocompatible alloy, which is easy to polish and has very little oxides and is therefore extremely suitable for porcelain. Ideal coefficient of thermal expansion allows use of wide range of different ceramics.
|Composition||(Mass – %)||Properties|
|Cr||24.0||Vicker’s hardness||HV 10|
|W||8.0||CTE||25-500°C 13,9 X 10⁶ K¹ 285|
|20-600°C 14,0 X 10⁶ K¹|
|Mo||3.0||0,2 Elongation limit||Rp 0,2 490 Mpa|
|Si||1.0||E Modul||E CA 210,000 Mpa|