Description
Physical Data of Quartz Glass Tube
|
SiO2 |
99.997% |
|
Density |
2.2 g/cm3 |
|
Degree of hardness moh' scale |
6.6 Pa |
|
Melting point |
1732°C |
|
Working temperature |
1100°C |
|
Max temperature can reach in a short time |
1450°C |
|
Acid tolerance |
30 times than Ceramics,150 times than stainless steel |
|
Visible light transmittance |
above 93% |
|
UV spectral region transmittance |
80% |
|
Resistance value |
10000 times than ordinary glass |
|
Annealing point |
1180°C |
|
Softening point |
1630°C |
|
Strain point |
1100°C |
ChemicalData ofQuartz Glass Tube
| 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 |
Unit:(ppm)
