Properties
General
| Property | Value |
|---|---|
Density | 2.67 g/cm³ Show Supplier Material materials with Density of 2.67 g/cm³ |
Mechanical
Thermal
| Property | Temperature | Value | Testing Standard | Comment |
|---|---|---|---|---|
Annealing temperature | 795.0 °C Show Supplier Material materials with Annealing temperature of 795.0 °C | ISO 7884-4 | Viscosity 10¹³ dPa·s | |
Coefficient of thermal expansion | 4.7e-06 1/K Show Supplier Material materials with Coefficient of thermal expansion of 4.7e-06 1/K | ISO 7991 | mean value for 20-300 °C | |
Glass transition temperature | 790 °C Show Supplier Material materials with Glass transition temperature of 790 °C | ISO 7884-8 | ||
Softening temperature | 1005.0 °C Show Supplier Material materials with Softening temperature of 1005.0 °C | ISO 7884-3 | Viscosity 10⁷·⁶ dPa·s | |
Specific electrical resistance temperature | 630.0 °C Show Supplier Material materials with Specific electrical resistance temperature of 630.0 °C | For ρ=10⁸ Ω·cm | ||
Thermal conductivity | 90 °C | 1.1 W/(m·K) Show Supplier Material materials with Thermal conductivity of 1.1 W/(m·K) | ||
Working temperature | 1305.0 °C Show Supplier Material materials with Working temperature of 1305.0 °C | ISO 7884-2 | Viscosity 10⁴ dPa·s |
Electrical
| Property | Temperature | Value | Frequency |
|---|---|---|---|
Dielectric constant | 6.6 [-] Show Supplier Material materials with Dielectric constant of 6.6 [-] | 1MHz | |
Electrical resistivity | 250 °C | 1e+11 Ω·m Show Supplier Material materials with Electrical resistivity of 1e+11 Ω·m | |
350 °C | 1e+09 Ω·m Show Supplier Material materials with Electrical resistivity of 1e+09 Ω·m | ||
Loss tangent | 0.0015 [-] Show Supplier Material materials with Loss tangent of 0.0015 [-] | 1MHz |
Optical
| Property | Value | Testing Standard | Comment |
|---|---|---|---|
Refractive index | 1.5 [-] Show Supplier Material materials with Refractive index of 1.5 [-] | at λ=587.6 nm | |
Stress optical coefficient | 2.7e-06 mm²/N Show Supplier Material materials with Stress optical coefficient of 2.7e-06 mm²/N | DIN 52314 |
Chemical properties
| Property | ||
|---|---|---|
Other | 0.01 % | max., Lead, Cadmium, Mercury and Hexavalent Chromium |
Technological properties
| Property | ||
|---|---|---|
| Application areas | For high temperature applications in electrical engineering. For use in bulb and exhaust tube for halogen lamps for automotive, houshold and general lighting. | |
| Corrosion properties | Hydrolytic resistance Class HGB1 (ISO 719) - Acid resistance Class S2 (DIN 12116) - Alkali resistance Class A2 (ISO695) | |