Ransparent Quartz Spiral Glass Tube for Heating Tube
China Ransparent Quartz Spiral Glass Tube for Heating Tube, Find details about China Quartz Spiral Glass Tube, Quartz Heating Tube from Ransparent Quartz Spiral Glass Tube for Heating Tube
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.
transparent quartz spiral glass tube for heating tube
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 |
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