Translucent Quartz Tube
Opaque quartz tube (translucent quartz tube, milky-white quartz tube) is made of high purity quartz sand. It was pulled out from high temperature melting furnace. The surface of this kind of tube is smooth and the color is pearl-white. With the adoption of distinctive technique, opaque quartz glass tube has typical characteristics of good visual aspects and stable physical & chemical properties (Saint-Gobain satin translucent quartz type).
Application
It serves as material of infrared heating for heaters, micro-wave oven, electrical baking oven, car paint baking, sterilization container and other consumptive and industrial infrared application.
Specifications
Diameter: 6mm-60mm
Length: 40mm-3000mm
Wall thickness:1-5 mm
Specifications can be made by the requirement of customers.
Packing: Carton+ wooden case.
Chemical composition unit : ppm
Al |
Fe |
K |
Na |
Li |
Ca |
Mg |
Cu |
Mn |
Pb |
B |
Ti |
20 | 1.0 | 3.5 | 3.5 | 1.0 | 2.0 | 0.5 | 0.3 | 0.5 | <0.01 | <0.2 | 2.0 |
Physical Properties
Density 20 deg c | 2.1 kg*m-3(×103) |
Coefficient of expansion (25-300 deg c) | 0.56 deg c-1(×10-6) |
Softening point | 1710 deg c |
Annealing point | 1230 deg c |
Strain point | 1140 deg c |
Youngs modulus | 7.3×105 Pa |
SiO2 | >99.9% |
Opalescence | Spectral transmission <10% at 500nm |
Heat Resistance | Keep under <900 deg c> for 15minutes, then put into <20 deg c >water, no crack after 3times |