Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 23.0 °C | 2.23 g/cm³ Show Supplier Material materials with Density of 2.23 g/cm³ |
Mechanical
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Annealing temperature | 560 °C Show Supplier Material materials with Annealing temperature of 560 °C | Viscosity 10¹³ dPa.s (ISO 7884-4) | |
Coefficient of thermal expansion | 23.0 °C | 3.3E-6 1/K Show Supplier Material materials with Coefficient of thermal expansion of 3.3E-6 1/K | mean value for 20-300 °C - ISO 7991 |
Glass transition temperature | 525 °C Show Supplier Material materials with Glass transition temperature of 525 °C | ISO 7884-8 | |
Softening temperature | 825 °C Show Supplier Material materials with Softening temperature of 825 °C | Viscosity 10⁷·⁶ dPa.s (ISO 7884-3) | |
Specific electrical resistance temperature | 250 °C Show Supplier Material materials with Specific electrical resistance temperature of 250 °C | For ρ = 10⁸ Ω·cm | |
Thermal conductivity | 90.0 °C | 1.2 W/(m·K) Show Supplier Material materials with Thermal conductivity of 1.2 W/(m·K) | |
Working temperature | 1260 °C Show Supplier Material materials with Working temperature of 1260 °C | Viscosity 10⁴ dPa.s (ISO 7884-2) |
Electrical
| Property | Temperature | Value |
|---|---|---|
Dielectric constant, 1MHz | 23.0 °C | 4.6 [-] Show Supplier Material materials with Dielectric constant, 1MHz of 4.6 [-] |
Electrical resistivity | 250.0 °C | 1000000 Ω·m Show Supplier Material materials with Electrical resistivity of 1000000 Ω·m |
350.0 °C | 31622 Ω·m Show Supplier Material materials with Electrical resistivity of 31622 Ω·m | |
Loss tangent, 1MHz | 23.0 °C | 3.7E-3 [-] Show Supplier Material materials with Loss tangent, 1MHz of 3.7E-3 [-] |
Optical
| Property | Value | Comment |
|---|---|---|
Refractive index | 1.47 [-] Show Supplier Material materials with Refractive index of 1.47 [-] | at λ=587.6 nm |
Stress optical coefficient | 4E-6 mm²/N Show Supplier Material materials with Stress optical coefficient of 4E-6 mm²/N | DIN 52314 |
Chemical properties
| Property | Value | Comment |
|---|---|---|
Other | 0.01 % Show Supplier Material materials with Other of 0.01 % | max., Lead, Cadmium, Mercury and Hexavalent Chromium |
Technological properties
| Property | ||
|---|---|---|
| Application areas | Engineering (Glass apparatus), Renewable energies (Receiver), Home (Furniture, Architecture, Partition walls, Giftware and others), Lighting (Neon tubing, Safe lighting, ), Laboratory/Industrial Technology (Glassblown laboratory ware, Pressed glass articles like balls and lenses, Technical articles), Sprinkler, Art installations | |
| Corrosion properties | Hydrolytic resistance Class HGB1 (ISO 719) - Acid resistance Class S1 (DIN 12116) - Alkali resistance Class A2 (ISO695) | |