Harmony C&B 55 is a gold-reduced, golden yellow casting alloy for economical use. Its low hardness enables easy and fast surface finishing.
Indications*
- Inlays
- Onlays, ¾ crowns, crowns
- Telescope crowns, conus crowns
- Bridges
- Wide-span bridges
- Cast posts / cores, bars, attachments
Technical Data
| Composition (%): | Au 55.0 | Pd 5.2 | Ag 30.0 | Cu 9.0 | In <1.0, Ir <1.0 |
| ISO | 22674:2016 |
| ADA Type | High Noble |
| Type / Color | 4 / Yellow |
| Density (g/cm³) | 13.6 |
| Melting Range (Solidus/Liquidus): | 905 - 975 °C |
| Elastic Modulus (GPa): | 120 |
| As Cast Softened Hardened | |
| Vickers Hardness: | 185 130 220 |
| Tensile Strength (MPa): | 575 430 660 |
| 0.2% Proof Stress (MPa): | 425 250 540 |
| Elongation (%): | 19 30 10 |
Advantages
- Golden yellow colour
- Clinically proven
- Excellent resistance to oral conditions
- Tested biocompatibility
Processing Data
| Investment Material: | Phosphate-bonded / Gypsum-bonded |
| Preheating / Burn- out Temperature: | 650 - 760 °C |
| Crucible | Carbon crucible / Ceramic crucible |
| Casting Temperature: | 1030 - 1090 °C |
| Laser Welding Wire: | Laser C&B Yellow |
*See TYPE CLASSIFICATION DUE TO PHYSICAL PROPERTIES