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Harmony KF
Harmony KF is a high gold casting alloy with a distinct yellow colour. The copper-free composition prevents discolouration on the inner surfaces of the double crowns and bars whilst in situ.
Indications*
- Telescope crowns, conus crowns
- Bridges
- Wide-span bridges
- Cast posts / cores, bars, attachments
- Implant-supported superstructures
- Partial dentures
Technical Data
| Composition (%): | Au 75.1 | Pt 3.2 | Pd 6.8 | Ag 10.2 | Zn 2.0 | In 2.2 | Sn <1.0, Ir <1.0 |
| ISO | 22674:2016 |
| ADA Class | High Noble |
| Type / Color | 4 / Yellow |
| Density (g/cm³) | 16.1 |
| Melting Range (Solidus/Liquidus): | 970 - 1080 °C |
| Elastic Modulus (GPa): | 106 |
| As Cast Softened Hardened | |
| Vickers Hardness: | 225 150 235 |
| Tensile Strength (MPa): | 635 480 620 |
| 0.2% Proof Stress (MPa): | 530 325 530 |
| Elongation (%): | 5 15 5 |
Advantages
- Cu-free
- Golden yellow colour
- Clinically proven
- No discolouration of double crowns or bars
- Certified biocompatibility
Processing Data
| Investment Material: | Phosphate-bonded / Gypsum-bonded |
| Preheating / Burn- out Temperature: | 650 - 760 °C |
| Crucible | Carbon crucible / Ceramic crucible |
| Casting Temperature: | 1135 - 1200 °C |
| Laser Welding Wire: | Laser C&B Yellow |
*See TYPE CLASSIFICATION DUE TO PHYSICAL PROPERTIES