Orplid PF
Type 4
deep yellow / Au 78.0
palladium-free
| Composition: | Au 78.0 / Cu 4.0 / Ag 11.0 / Zn 2.0 / Pt 4.9 / Ir 0.1 |
| Standard: | DIN EN ISO 22674 |
| Colour: | deep yellow |
| Melting range °C: | 980–920 |
| Soft annealing: | 15 mins at 750 °C / quench in water |
| Hardening: | 15 mins at 500 °C / air |
| Preheating temperature°C: | 700 |
| Casting temperature °C: | 1100 |
| Further heating after melting(secs): | electr.: 15–20 inductive: 5–8 flame: 5–8 |
| Density g/cm3: | 16.7 |
| Solders: | Orplid solders 825, 790 |
| Vickers hardness (HV 5/30): | w: 140 a: 200 g/b: 195 |
| 0.2% proof stress (MPa): | w: 285 a: 400 g/b: 360 |
| Elongation at break (%): | w: 24 a: 19 g/b: 25 |
| 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 |
| Finishing: | 1100 °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 825, 790 |