Quartz glass has a very low coefficient of thermal expansion, high temperature resistance, excellent chemical stability, excellent electrical insulation, low and stable ultrasonic delay performance, the best UV-Vis spectral performance and visible and near infrared spectroscopy Performance, and has a higher than ordinary glass mechanical properties.
clear cut short length fused silica quartz glass tube quartz tube for uv lamp
|
Density |
2.203 g/cm3 |
|
Hardness |
7 (Modified Scale); 5.36.5 (Mohs Scale) |
|
Modulus of elasticity |
63·103N·mm-2 |
| Poisson's ratio | 0. 18 |
|
Tensile strength |
48.3 MPa |
|
Compressive strength |
>1.1 GPa |
|
Bulk modulus |
~37 GPa |
| Rigidity modulus | 31 GPa |
|
Poisson's ratio |
0.16 |
|
Coefficient of thermal expansion |
5.5×10-7 cm/(cmK) ( from 20°C to 320°C) |
|
Thermal conductivity |
1.3 W/(mK) |
|
Softening point |
1730°C |
|
Annealing point |
1180°C |
|
Strain point |
1075°C |
|
Electrical resistivity |
>1018 Ωm |
|
Dielectric constant |
3.75 at 20°C 1 MHz |