Description
Type: | High gold-containing precious metal alloy on the gold basis intended for metal-ceramic dentures or for dental casting alloy, type 3 (hard), type 4 (extra hard) for a-n
acc. DIN EN ISO 22674 |
Colour: | yellow |
Applicable scope: | Inlays, Onlays | ● |
Crowns | ● | |
Small bridges | ● | |
Middle-sized span bridges | ● | |
Milling, cone and attachment works | ● | |
Modeling casting | ||
Applicable for LCF | ● |
Composition: | Au | 71,00 | Ag | 17,30 |
(mass fraction in %) | Pt | 8,50 | Zn | 2,40 |
Rh | 0,50 | Ta | 0,30 |
Technical specifications: | Density in g/cm³ | 16,3 | |||
Vickers hardness HV 5/30 | as modeling alloy | (s) 130 | (a-s) 150 | ||
as bonding alloy | (s) 130 | (n) 120 | (a-n) 190 | ||
Yield strength Rp0,2 in MPa | as modeling alloy | (s) 320 | (a-s) 340 | ||
as bonding alloy | (s) 320 | (n) 200 | (a-n) 380 | ||
Elongation at break in % | as modeling alloy | (s) 17 | (a-s) 13 | ||
as bonding alloy | (s) 17 | (n) 15 | (a-n) 8 | ||
Average linear CTE 25 – 500 °C in 10-6 K-1 | 15,8 | ||||
Average linear CTE 25 – 600 °C in 10-6 K-1 | 16,2 | ||||
Elastic modulus in GPa | 100 | ||||
Melting interval in °C | 990 – 1050 |
Processing: | Preheating temp. of the casting moulds in °C | 750 |
Casting temperature in °C | 1200 | |
Crucibles | Graphite/ceramic | |
Curing (a-s) | 500°C/15min | |
(a-n) | 500°C/15 min |
Suitable solders: | Joints before ceramic firing | AuroCer Lot 920 PF |
Joints after ceramic firing | AuroCer Lot 700 PF | |
Joints as modeling alloy | AuroDur H Lot 750 |
1) Brief description:
s – self-curing, n – after ceramic firing, a-s – curing from s condition
a-n – curing from n condition
2) All information about cured condition is given according to the alloy:
– Oxide firing 10min/ 960°C + 4x4min/ 960°C for yellow conventional bonding alloys
– Oxide firing 10min/ 980°C + 4x4min/ 980°C for white conventional bonding alloys
– Oxide firing 10min/ 800°C + 4x4min/ 800°C for LFC-systems
Corresponding data are true under these conditions only.
3) The ceramic firing should be carried out according to the manufacturer's instructions.
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