1.Borosilicate glass tubing
2.Factory outlet borosilicate glass tubing
3.OEM will be welcome orosilicate glass tubing
Chemical Composition | Physical Properties |
SiO2 = 80.6% | Coefficient of expansion (20°C–300°C) 3.3 x 10-6 K-1 |
B2O3 = 13.0% | Density 2.23g/cm3 |
Na2O = 4.0% | Refractive index (Sodium D line)1.474 |
Al2O3 = 2.3% | Dielectric constant (1MHz, 20°C) 4.6 |
Optical Information | Specific heat (20°C) 750J/kg°C |
Refractive index (Sodium D line) =1.474 | Thermal conductivity (20°C) 1.14W/m°C |
Visible light transmission, 2mm thick glass = 92% | Poisson’s Ratio (25°C – 400°C) 0.2 |
Visible light transmission, 5mm thick glass= 91% | Young’s Modulus (25°C) 6400 kg/mm2 |
1.Borosilicate glass tubing
2.Factory outlet
3.OEM will be welcome.
4.Export experience for many years