CoCr alloys
156
Crowns and bridges
remanium® star
Modern bonding alloy with excellent processing properties
and low hardness. Suitable for all processing technologies.
Advantages:
• extremely easy to work with, especially when milling or
polishing due to the exceptionally reduced hardness
• for all processing technologies such as casting, milling and
laser melting
• excellent melting and flow behavior
• excellent ceramic fusion because of the low coefficient
of thermal expansion
• no oxide firing required
• long time cooling is only recommended for
long-span bridges
• particularly recommended for telescopic work
• suitable for laser welding because it is carbon free
• flexibility in casting: can be melt in a high frequency
induction casting unit, or with the propane/oxygen torch
• increased efficiency
Indication: crowns and bridges, metal ceramics, double
crowns, implant supported supra-structures, Maryland
bridges, secondary parts for cast partial dentures
(combination works)
Norm: DIN EN ISO 9693, DIN EN ISO 22674 (type 5)
Technical data
0.2% Yield strength Rp0.2 620 MPa
Tensile strength Rm 845 MPa
Hardness 280 HV 10
Elongation A5 10.2 %
Modulus of elasticity E 190 GPa
Density 8.6 g/cm³
CTE 25–500 °C / 77–932 °F 14.1 x 10-6 K-1
Solidus temperature 1320 °C / 2408 °F
Liquidus temperature 1420 °C / 2588 °F
Weight of casting ingot 6 g
REF 102-621-00 50 g
REF 102-622-00 250 g
REF 102-620-00 1000 g
Composition (percentage by mass)
Co Cr W Si
60.5 28.0 9.0 1.5
Additional elements < 1 %: Mn, N, Nb