BegoStar
Alloy with reduced gold content for metal-ceramic restorations, copper-free, with biocertificate.
- Extra-hard alloy with reduced gold content
| 54,0 - 26,4 - 15,5 - 2,5 - 1,5 - x - x | |
| BEGO colour code | 8 |
| CTE 20-600 °C | 14,2 |
| CTE 25-500 °C | 14,3 |
| Casting temperature [°C] | 1420 |
| Density [g/cm³] | 13,8 |
| Elongation [A5] after casting/firing | 15 |
| Elongation [A5] soft | 21 |
| Elongation [A5] tempered | 13 |
| Indications | 2, 3, 4, 5, 6 |
| Medium grit size | 30 |
| Melting interval [°C] | 1245 - 1270 |
| Modulus of elasticity [GPa] | 116 |
| Pre-heating temperature [°C] | 850 |
| Proof stress [RP 0,2] after casting/firing | 400 |
| Proof stress [RP 0,2] soft | 460 |
| Proof stress [RP 0,2] tempered | 530 |
| Type of alloy | extrahart |
| Vickers Hardness [HV5] after casting / firing | 225 |
| Vickers Hardness [HV5] tempered | 230 |
| Vickers Hardness[HV5] soft | 205 |
*All images are subject to BEGO Bremer Goldschlägerei Wilhelm Herbst GmbH & Co. KG
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