Pontonorm
High-gold-content, extra-hard alloy for crowns and bridges, yellow, does not contain palladium, suitable for veneering with low-fusing dental ceramics; biocertificate available.
- Extra-hard alloy with a high gold content, compatible with low-fusing porcelains
| 73,8 - 9,2 - 9,0 - 4,4 - 2,0 - 1,5 - x | |
| BEGO colour code | 4 |
| CTE 20-600 °C | 16,8 |
| CTE 25-500 °C | 15,8 |
| Casting temperature [°C] | 1150 |
| Density [g/cm³] | 16,1 |
| Elongation [A5] after casting/firing | 5 |
| Elongation [A5] soft | - |
| Elongation [A5] tempered | 6 |
| Indications | 1, 2, 4, 5, 6 |
| Medium grit size | 20 |
| Melting interval [°C] | 900 - 980 |
| Modulus of elasticity [GPa] | 93 |
| Pre-heating temperature [°C] | 700 |
| Proof stress [RP 0,2] after casting/firing | 430 |
| Proof stress [RP 0,2] soft | - |
| Proof stress [RP 0,2] tempered | 500 |
| Type of alloy | extrahart |
| Vickers Hardness [HV5] after casting / firing | 200 |
| Vickers Hardness [HV5] tempered | 230 |
| Vickers Hardness[HV5] soft | 150 |
*All images are subject to BEGO Bremer Goldschlägerei Wilhelm Herbst GmbH & Co. KG
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