WIRONIUM extrahart
Chrome cobalt partial denture alloy
- Practical alternative whenever an alloy with greater strength and slightly lower ductile yield is required.
- Ideal for laser welding with Wiroweld due to reduced carbon content.
| 61,0 - 30,0 - 5,0 - 2,0 - 1,0 - x - x | |
| BEGO colour code | 8 |
| Casting temperature [°C] | 1450 |
| Density [g/cm³] | 8,2 |
| Melting interval [°C] | 1310, 1410 |
| Modulus of elasticity [GPa] | 243 |
| Pre-heating temperature [°C] | 950-1050 |
| Proof stress [RP 0,2] after casting/firing | 650 |
| Standard | ISO 22674 |
| Suitability for laser welding | ja |
| Tensile strength [RM] | 1035 |
| Vickers Hardness [HV10] after casting / firing | 350 |
*All images are subject to BEGO Bremer Goldschlägerei Wilhelm Herbst GmbH & Co. KG
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