SYSTEM Duro is a non-precious dental cast alloy for crowns and bridges on cobalt-base, type 5.
SYSTEM Duro is easy to use and quick to polish with excellent laser welding properties. The alloy can be melted by open flame or induction heating.
SYSTEM Duro can be used with any commercial, phosphate- bonded investment material (our recommendation: ADENTA®-VEST CB).
SYSTEM Duro can be veneered with any high-fusing ceramics.
Typical material properties
| Yield strength 0,2 % (MPa) | 575 |
| Elongation (%) | 6,0 |
| E-Module (GPa) | 210 |
| Tensile strength (MPa) | 700 |
| Density (g/cm³) | 8,4 |
| CTE (25 – 500°C) (10⁻⁶ K⁻¹) | ~14,1 |
| Hardness HV 10/30 | 350 |
| Delivery form (mm) | Ø 9,5 x 11 |
| Packaging unit (g) | 1000 g |
| Type acc. DIN EN ISO 22674 | Type 5 as delivered |
More information are available on our instruction for use.
Chemical composition %
| Co | Cr | W | Nb | V | Mo | Si | Fe |
| 60,0 | 24,5 | 9,0 | 2,0 | 2,0 | 1,1 | 0,9 | 0,15 |