Description
>>> GebrAnw-Dental-Base-Alloy-Adornova-LFC.pdf <<<
| Type: | High gold-containing precious alloy on the gold basis intended for metal-ceramic dentures or for dental casting alloy, type 4 (extra hard)
acc. DIN EN ISO 22674 |
| Colour: | yellow |
| Applicable scope: | Inlays, Onlays | ● |
| Crowns | ● | |
| Small bridges | ● | |
| Bridges of any physiological span | ● | |
| Milling, cone and attachment works | ●* | |
| Modeling casting | ● | |
| Applicable for LCF | ● |
| Composition: | Au | 73,80 | Cu | 4,40 |
| (mass fraction in %) | Pt | 9,00 | Zn | 2,00 |
| Ir | 0,10 | In | 1,50 | |
| Ag | 9,20 |
| Technical specifications: | Density in g/cm³ | 16,7 | |||
| Vickers hardness HV 5/30 | as modeling alloy | (s) 200 | (a-s) 210 | ||
| as bonding alloy | (s) 200 | (n) 220 | (a-n) 240 | ||
| Yield strength Rp0,2 in MPa | as modeling alloy | (s) 410 | (a-s) 480 | ||
| as bonding alloy | (s) 410 | (n) 450 | (a-n) 530 | ||
| Elongation at break in % | as modeling alloy | (s) 6 | (a-s) 9 | ||
| as bonding alloy | (s) 6 | (n) 8 | (a-n) 6 | ||
| Average linear CTE 25 – 500 °C in 10-6 K-1 | 16,8 | ||||
| Average linear CTE 25 – 600 °C in 10-6 K-1 | 17,0 | ||||
| Elastic modulus in GPa | 90 | ||||
| Melting interval in °C | 900 - 990 |
| Processing: | Preheating temp. of the casting moulds in °C | 700 | |
| Casting temperature in °C | 1140 | ||
| Crucibles | Graphite/ceramic | ||
| Curing | (a-s) | 450°C/15min
450°C/15min |
|
| (a-n) |
| Suitable solders: | Joints before ceramic firing | AL 880 PF |
| Joints after ceramic firing | AL 700 PF | |
| Joints as modeling alloy | AL 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.
*) Depending on the copper content, discoloration may occur. We refer here to our document INDIFKGRX.

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