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: 1030–935
Soft annealing: 15 mins at 800 °C / quench in water
Hardening: 15 mins at 400 °C / airtd>
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 (Cehacast P or Cehacast Speed)
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