Nibrodal 138
Nibrodal 138 is a curable alloy from bedra
Fields of application
Rim, temple, bridge, hinge, closing block & pad arm
Physical properties
| Density (kg/dm³) | 8.8 |
|---|---|
| Melting range (°C) | 1080 - 1110 |
| E-Modulus (kN/mm²) | 120 |
| Thermal conductivity (W/m*K) | 30 |
| Coefficient of thermal expansion (10-6/K) | 17 |
| Electrical conductivity (MS/m) | 3.5 (solution heat treated) / 4.8 (precipitation hardened) |
Composition
| Cu | balance |
|---|---|
| Sn | 7 |
| Ni | 13 |
| Mn | 0.2 |
| Others | max. 0.5 |
Delivery program
| Profiles | Round wires / square profiles / flat wires / special profiles |
|---|---|
| Surface coatings | Several electroplated coatings, upon request |
| Make-ups | Spools / coils / rods / drums |
Further product information
Berkenhoff GmbH (headquarters)
- Kinzenbach plant
- Berkenhoffstrasse 14
- 35452 Heuchelheim
- Germany
- +49 641 601 0
- +49 641 601 222
- info(at)bedra.com
Berkenhoff GmbH
- Merkenbach plant
- Rehmühle 1
- 35745 Herborn
- Germany
- +49 2772 5002 0
- +49 2772 5002 155
- info(at)bedra.com
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