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 (Heat exchanger, Desulphorization plants, Ozone generators, Photobioreactors, Instruments / Barometers / Aerometers / Sightglasses), Electronic components (Fuses), Signal intensifier, detector and (fibre-) optics (Transmitter and x-ray tubes, Photomultipliers), Sensors, Home (Aquarium heating tubes, Furniture, Sprinkler fuses, Food packaging/cosmetics, Architecture, Galileo thermometers, Outdoor patio heater, Christmas ornameters, Handle for cups, Partition walls and Giftware), Lighting (Explosion proof lighting, Neon tubing, Flah lamps, Lamp bulbs, Exhaust and plate tubing, Safety lighting, Autonomous street lighting), Laboratory/Industrial Technology (Glassblown laboratory ware, Test tubes, NMR tubes, Measuring cylinders, Microlitetre, Syringe, Pipettes, Thermometry, Glass Straws, Pressed glass articles like balls and lenses, Technical articles), General-purpose glass for apparatus for the chemical industry, Sight- and Gauge glasses, pipelines and lab glassware, Sprinkler, Art installations, LiDAR & Radar, Pneumatic Conveying Systems, Photobioreactors, Water treatment, | |
| Corrosion properties | Hydrolytic resistance Class HGB1 (ISO 719) - Acid resistance Class S1 (DIN 12116) - Alkali resistance Class A2 (ISO695) | |