General
Property | Value |
---|---|
Density | 2.23 g/cm³ Show Supplier Material materials with Density of 2.23 g/cm³ |
Mechanical
Thermal
Property | Temperature | Value | Testing Standard | Comment |
---|---|---|---|---|
Annealing temperature | 560.0 °C Show Supplier Material materials with Annealing temperature of 560.0 °C | ISO 7884-4 | Viscosity 10¹³ dPa·s | |
Coefficient of thermal expansion | 3.3e-06 1/K Show Supplier Material materials with Coefficient of thermal expansion of 3.3e-06 1/K | ISO 7991 | mean value for 20-300 °C | |
Glass transition temperature | 525 °C Show Supplier Material materials with Glass transition temperature of 525 °C | ISO 7884-8 | ||
Softening temperature | 825.0 °C Show Supplier Material materials with Softening temperature of 825.0 °C | ISO 7884-3 | Viscosity 10⁷·⁶ dPa·s | |
Specific electrical resistance temperature | 250.0 °C Show Supplier Material materials with Specific electrical resistance temperature of 250.0 °C | For ρ=10⁸ Ω·cm | ||
Thermal conductivity | 90 °C | 1.2 W/(m·K) Show Supplier Material materials with Thermal conductivity of 1.2 W/(m·K) | ||
Working temperature | 1260.0 °C Show Supplier Material materials with Working temperature of 1260.0 °C | ISO 7884-2 | Viscosity 10⁴ dPa·s |
Electrical
Property | Temperature | Value | Frequency |
---|---|---|---|
Dielectric constant | 4.6 [-] Show Supplier Material materials with Dielectric constant of 4.6 [-] | 1MHz | |
Electrical resistivity | 250 °C | 1e+06 Ω·m Show Supplier Material materials with Electrical resistivity of 1e+06 Ω·m | |
350 °C | 31623 Ω·m Show Supplier Material materials with Electrical resistivity of 31623 Ω·m | ||
Loss tangent | 0.0037 [-] Show Supplier Material materials with Loss tangent of 0.0037 [-] | 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 | 4e-06 mm²/N Show Supplier Material materials with Stress optical coefficient of 4e-06 mm²/N | DIN 52314 |
Chemical properties
Property | ||
---|---|---|
Other | 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) |