Girobond NBS (1000g)
SKU: 781610
CoCrMo-based dental fire-bonded alloy, type 4 according to DIN ISO 22674 for fixed and removable prosthodontics
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Description
Description
Data & Composition
Data & Composition
Girobond NBS is a trailblazing bonding alloy for the crown and bridge technique. The specific composition of this CoCrMo alloy, with fine admixtures but no carbon content, provides optimum properties for outstanding results.
- CrMo bonding alloy free of nickel and beryllium
- Excellent laser welding behavior, no risk of crack development since carbon-free
- Also suitable as universal alloy for model-casting clasp dentures, wide-span telescopic cases, and delicate suprastructures
- High homogeneity within the batches and good reproducibility thanks to the optimized production process
- Suitable for casting with any standard method
- Good controllability of the melting and casting process
- Easy milling (310 HV10)
- Dense surface, good polishability, rich shine
- Completely unproblematic and safe facing with conventional facing porcelains which suit the coefficient of thermal expansion of Girobond NBS 14.1 x 10-6K-1 (25-500°C)
| Proof stress Rp 0,2 % [MPa] | 620 |
| Tensile strengtht Rm [MPa] | 850 |
| Modulus of elasticity E [GPa] | 210 |
| Elongation at rupture A [%] | 14 |
| Vickers hardness HV10 | 330 |
| Casting temperature [C°] | ca. 1510 |
| Melting rangel Solidus [C°] | 1350 |
| Melting rangel Liquidus [C°] | 1422 |
| Density [g/cm³] | 8.6 |
| CTE 25-500 C° [x 10-6 K-1] | 14.1 |
| CTE 25-600 C° [x 10-6 K-1] | 14.3 |
| Chemical composition in % by mass | |
| Co 62.4 | undefined |
| Cr 25.5 | undefined |
| Mo 5.1 | undefined |
| W 5.2 | undefined |
| Si 1.1 | undefined |
| Other < 1 % | |
| Nb, Fe, N | undefined |
| CE-certified and free of nickel, beryllium, gallium and carbon | undefined |