Orplid PCF
Type 4
yellow / Au 84.5
palladium-free, silver-free, copper-free
| Composition: | Au 84.5 / Pt 10.0 / Zn 4.5 / Rh 0.9 / Ir 0.1 |
| Standard: | DIN EN ISO 22674 |
| Colour: | yellow |
| Melting range °C: | 1030–910 |
| Soft annealing: | 15 mins at 800 °C / quench in water |
| Hardening: | 15 mins at 410 °C / air |
| Preheating temperature °C: | 700 |
| Casting temperature °C: | 1160 |
| Further heating after melting (secs): | electr.: 20–40 inductive: 5–8 flame: 5–10 |
| Density g/cm3: | 18.1 |
| Solders: | Orplid solders CF 860, CF 720 |
| Vickers hardness (HV 5/30): | w: 145 a: 205 g/b: 200 |
| 0.2% proof stress (MPa): | w: 320 a: 550 g/b: 400 |
| Elongation at break (%): | w: 15 a: 10 g/b: 12 |
| Spruing: | Following the rules for dental applications(see General Instructions for Use) |
| Investment: | Phosphate-bonded investment materials |
| Preheating: | 700 °C, 30 to 120 mins until end temperature, depending on size of mould |
| Casting: | 1160 °C, possibly increase by 20°C–30°C for resistance-heated vacuum pressure casting. Graphite crucible or open flame with ceramic crucible. |
| Finishing: | With carbide burs and/or ceramic-bonded stones |
| Cleaning: | Ultrasonic cleaning or steam jet cleaning |
| Soldering: | Orplid solders CF 860, CF 720 |