Dental Direkt GmbH
Chemical composition [wt.%]
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DD Bio CW
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€140,00
€175,00you save €35,00
Cobalt based dental alloy for ceramic
DD Bio CW are CoCr-based milling blanks for the fabrication of metal frameworks for metal-ceramic crowns, bridges and fixed restorations. DD Bio CW blanks offer high processing reliability and guarantee precise milling results. Excellent results are achieved by using a veneering ceramic that is matched to the CTE of the material using long-term cooling.
Advantages:
- Highly resistant to corrosion
- Free from nickel, beryllium, indium and gallium
- Better millability due to lower Vickers hardness
- Very good polishing properties
Physical Properties
| Density | 8.4 g/cmc |
| Solidus-liquidus temperature | 1307-1417°C |
| Melting point | 1470°C |
| Yield load strenght (Rp 0.2) | 395MPa |
| Elongation at break | 11% |
| Modulus of elasticity | 233 GPa |
| Vickers hardness | 255 HV10 |
| Color | White |
|
Thermal expansion coefficient 25-500 °C |
14.3-10 6 K 1 |
|
Thermal expansion coefficient 25-600 °C |
14.5-10 6 K1 |
| Max. firing temperature | 980°C |
| Suggested ceramic types | VITAVM13 |
| Cytoxicity test according to ISO standard 10993-5 | Passed |
Chemical composition [wt.%]
| Cobalt (Co) | 66 |
| Chromium (Cr) | 27 |
| Molybdenum (Mo) | 6 |
| Others: Si, Mn |