Optical quartz glass tube for optical equipment
US $1.50-$5.50
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Property Content | Property Values |
SiO2 | 99.99% |
Density | 2.2×103 kg/cm³ |
Hardness | 5.5 - 6.5 Mohs' Scale 570 KHN 100 |
Tensile Strength | 4.8x107 Pa (N/mm2) (7000 psi) |
Compression 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 | 1730°C (3146°F) |
Annealing Point | 1180°C (2156°F) |
Strain Point | 1075°C (1967°F) |
Electrical Resistivity | 7x107 ohm cm (350°C) |