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Simidur A
Simidur A is a copper-free universal alloy, which can be used for a wide range of indications. The low density makes this alloy economical. It can be veneered with low-fusing special ceramics.
Indications*
- Inlays
- Onlays, 3/4 crowns, crowns
- Telescope crowns, conus crowns
- Bridges
- Wide-span bridges
- Cast posts / cores, bars, attachments
- Implant-supported superstructures
- Partial dentures
Technical Data
| Composition (%): | Ag 54.7 | Pd 39.0 | Zn 3.0 | Sn 2.0 | In 1.3 |
| ISO | 22674:2016 |
| Type / Color | 4 / White |
| Density (g/cm³) | 10.7 |
| Melting Range (Solidus/Liquidus): | 1100 - 1170 °C |
| Elastic Modulus (GPa): | 95 |
| As Cast Porcelain Fired Hardened | |
| Vickers Hardness: | 190 220 240 |
| Tensile Strength (MPa): | 560 640 660 |
| 0.2% Proof Stress (MPa): | 380 450 470 |
| Elongation (%): | 15 11 10 |
Advantages
- Cu-free
- Economical use due to low density
- Good melting and flow properties
- Compatible with special ceramics
- Wide range of indications
Processing Data
| Investment Material: | Phosphate-bonded |
| Preheating / Burn- out Temperature: | 850 °C |
| Crucible | Carbon crucible/ Ceramic crucible |
| Casting Temperature: | 1300 °C |
| Oxidation °C/min/Vacuum: | 800 / 5 / No |
| CTE: | (25 – 500 °C): 16.2 x 10-6 /K |
| Laser Welding Wire: | Porta P6 |
*See TYPE CLASSIFICATION DUE TO PHYSICAL PROPERTIES