Suprasil Glass

Glass Type: Fused Silica


Suprasil ® CG is a high purity synthetic fused silica material manufactured by flame hydrolysis. It combines excellent physical properties with very good optical characteristics and excellent transmis¬sion from the deep UV to the near IR.

Thermal PropertiesMechanical Properties
Thermal Coefficient of Expansion0 ± 0.5 x 10-6/KDensity2.20 g/cm3
Annealing Point1120°CShear Modulus36.8 GPa
Softening Point1600 °CKnoop Hardness5600 - 6200
Tensile Strength50 N/mm2Poisson's Ratio0.17@ 25°C
Chemical PropertiesElectrical Properties
Hydrolytic ResistanceN/ADielectric Constant7 8MHz, 25° C
Acid ResistanceN/AResistivity=l,00e+8 Ω-cm @400°C
Alkali ResistanceN/ADielectric Strength3.7 /20°C
Optical Properties
Refractive IndexBl: 4,73115591 . 10-1