Wirobond 280
Non-precious metal premium alloy for metal-ceramic or composite veneering - nickel-free, beryllium-free
- Wirobond 280 is setting standards in the non-precious bonding alloy segment. The low Vickers hardness of 280 HV10 and a very good spanability facilitate processing
- High corrosion resistant thanks to the interaction of the indispensable elements chrome, tungsten and molybdenum
- Very good melting and casting properties
- No prolonged cooling necessary*, even with large spans, due to optimised coefficient of thermal expansion
- Secure bonding with ceramics
- High strength of the alloy for safe processing even of the large span size of bridges
- Reliable processing in accordance with the proven BEGO system
- Biocompatible and corrosion-resistant
| 60,2 - 25,0 - 6,2 - 4,8 - 2,9 - x - x | |
| BEGO colour code | 8 |
| CTE 20-600 °C | - |
| CTE 25-500 °C | 14,3 / *14,0 |
| Casting temperature [°C] | 1500 |
| Color | silver |
| Density [g/cm³] | 8,6 |
| Melting interval [°C] | 1355, 1430 |
| Modulus of elasticity [GPa] | 211 / *214 |
| Pre-heating temperature [°C] | 900-1000 |
| Proof stress [RP 0,2] after casting/firing | 475 / *500 |
| Standard | ISO 9693 + ISO 22674 |
| Tensile strength [RM] | 680 |
| Vickers Hardness [HV10] after casting / firing | 280 / *390 |
*All images are subject to BEGO Bremer Goldschlägerei Wilhelm Herbst GmbH & Co. KG
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