| Characteristics | ||
|---|---|---|
| The specified data are standard values. Subject to change. |
||
| REF | 61020 | |
| Colour code | 3 | |
| Density [g/cm³] | 15.5 | |
| Vickers hardness (HV 5) |
soft | 155 |
| after casting/firing | 220 | |
| hardened | 225 | |
| Elongation limit (Rp 0,2) [MPa] |
soft | 340 |
| after casting/firing | 500 | |
| hardened | 510 | |
| Ductile yield (A5) [%] |
soft | 40 |
| after casting/firing | 15 | |
| hardened | 14 | |
| Modulus of elasticity approx. [GPa] |
95 | |
| Average grain size [µm] | 25 | |
| Melting interval [°C] | 900-940 | |
| Casting temperature approx. [°C] | 1050 | |
| Preheating temperature [°C] | 700 | |
| CTE 25–500 °C (25–600°C) [10-6 K-1] |
||
| Oxide firing | °C | - |
| Min. | - | |
| with vacuum | - | |
| Solders | BEGO-Gold-Lot I–810°C BEGO-Gold-Lot II–765°C Pre-flux U Goldlot–810°C |
|
| Composition % by mass | |
|---|---|
| (x = < 1 %) | |
| Au | 72 |
| Pt | 3,5 |
| Pd | 0 |
| Ag | 13,7 |
| Cu | 9,8 |
| Sn | 0 |
| Zn | x |
| In | 0 |
| Other elements (< 1 %) |
Ir |
BEGO-GOLD alloys and solders are medical divices in accordance with Regulation 93/42 EEC.
According to Annex IX, the products are classified in Class IIa.