square quartz glass tube
US $0.15
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Property content | Attribute value |
Sio2 | 99.99% |
Density | 2.2g/cm³ |
Hardness | 570KHN100 |
Tensile strength | 4.8x107 Pa (N / mm2) (7000 psi) |
Compressive strength | >1.1×109 Pa (160,000 psi) |
Coefficient of thermal expansion | 5.5x10-7 cm/cm·°C (20°C-320°C) |
Thermal conductivity | 1.4 W/m·°C |
Specific heat | 670 J/kg·°C |
Softening point | 1630°C |
Annealing point | 1180°C |
Strain point | 1100°C |
Electrical Resistivity | 7x107 ohm cm (350°C) |