Transparent Quartz Tubes
Standard transparent quartz tube (fused silica tubing) is made of high purity silica sand by automatic-controlled electric fusing furnace. It has the characteristics of high purity, strong heat resistance, high transmission and accurate dimension etc. We also offer ordinary de-hydroxyl tube & vacuum de-hydroxyl tube, hydroxy (OH) can be controlled less than 5PPM. (GE214, 214LD, Heraeus HLQ200, 210 type)
Application
It is widely applied for halogen lamp, mercury lamp, single-ended lamp, automobile lamp, stage lamp, thermocouple, printer lamp, sleeve for water treatment lamp, high-pressure mercury lamp, metal halide bulb, quartz utensils and pipes etc.
Specifications
Diameter: 2mm-300mm
Wall thickness：0.8-10 mm
Length: 40mm-3000mm
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 |
| 16 | 0.8 | 3.0 | 2.5 | 0.7 | 1.0 | 0.5 | 0.3 | 0.5 | <0.01 | <0.2 | 2.0 |
Physical Properties
| Density 20 deg c | 2.2 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 |