Transparent Quartz Twin Tubes
Writer:World Quartz Date:
Transparent twin tube has excellent characteristics in basic physical performance of ordinary transparent quartz glass tube.
Specifications:
8x17mm
11x23mm
15x32mm
Length:50－4000mm
Specifications can be made by the requirement of customers.
Chemical composition unit : ppm
| Al |
Fe |
K |
Na |
Li |
Ca |
Mg |
Cu |
Mn |
Pb |
B |
Ti |
| 20 | 1.0 | 1.5 | 2.5 | 1.0 | 2.0 | 0.5 | 0.3 | 0.5 | <0.01 | <0.2 | 2.0 |
Physical Properties
| Density 20 deg c | 2.2-1(×10-6) 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(Pa) | 7.3×105 |