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
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