Deep Cutoff Ozone Free Quartz Tube
Mainly used for Tanning lamps.
Product Feature：
It is a kind of clear quartz glass tube doped with titanium. It can absorb all the UV-C, which protect against harmful ultraviolet radiation.The extremely low OH (OH less than 1ppm) prolongs the lamp’s life.
Typical Size:（mm）
| O.D. Fange | O.D. Tolerance | Thickness | WT Tolerance | Out of Round | Siding | Bow |
|---|---|---|---|---|---|---|
| 3<OD≦10 | ±0.10 | 1.0∼2.0 | ±0.15 | 2% | 0.12 | 0.15% |
| 10<OD≦20 | ±0.20 | 1∼2.5 | ±0.15 | 1.25% | 0.12 | 0.15% |
| 20<OD≦30 | ±0.25 | 1.5∼3.0 | ±0.15 | 1.25% | 0.12 | 0.15% |
| 30<OD≦40 | ±0.35 | 1.5∼4.0 | ±0.15 | 1.25% | 0.12 | 0.15% |
| 40<OD≦50 | ±0.2 | 2.0∼4.0 | ±0.15 | 1.25% | 0.12 | 0.15% |
Mechanical & Thermal Properties：
| Density（20°C kg/m3） | Thermal Expansion (200 ~300°C C-1) | Softening Point (°C ) | Annealing Poing (°C ) | Strain Point (°C ) |
|---|---|---|---|---|
| 2.1*103 | 5.8*10-7 | 1630 | 1180 | 1070 |
Impurity Value: (ppm)
| Impurity | Na | K | Mg | Li | Ca | Fe | Al | Ti | Cu |
|---|---|---|---|---|---|---|---|---|---|
| typical value | 1.1 | 1.2 | 0.5 | 0.9 | 1.0 | 0.5 | 16.2 | 1.5 | 0.05 |
OH Content: (ppm)
| Typical Value without Baking | After baking |
|---|---|
| 130 | <1 |
Optical Properties:
