UV Black Quartz Tube for Automotive Lamp
1, OEM is ok, as required
2, low OH
3, ISO 9001-2000
4, no bubble no airline
5, resistance 1100 degree, 1000 long time work
Advantage of the quartz glasss tube:
1. High temperature resistant, 1100 degree.
2. Corrosion-resistant
3. Good thermal stability
4. Good transparency for light
5. Good electrical insulation
About Donghai Yukang Quartz Material Co., Ltd:
We can supply more than 5 types and 70 speculations, ranging from 3-300mm clear quartz tube(high purity, good heating resistance, low OH), UV-stop quartz tube, red quartz tube, processed quartz tube, quartz rod, quartz plate, gray quartz tube, and so on. And we have further capacity of trim cutting, fire-polishing, pinching, and bending, and so on.
After-Sale service:
1), 24 hrs service for customers.
2), quality issue, we accept reworking if quality is not reach your requirements.
3), sample available for free.
4), OEM service acceptable. Welcome your artwork.
Your design and drawing are accepted, we can make as your requirement. Waitting for your special specification to offer.
Chemical Composition
| AL | Fe | K | Na | Li | Ca | Mg | Cu | Mn | Cr | B | Ti |
| 5-12 | 0.19-1.5 | 0.71-1.6 | 0.12-1.76 | 0.38-0.76 | 0.17-1.23 | 0.05-0.5 | 0.05 | 0.05 | <0.05 | <0.1 | <1.0 |
Spectral transmission at 1.0mm thickness
| m m | <220 | 255 | 280 | 315 | 350 | 38 | 590 | 780 |
| % | 89 | 91 | 93 | 93 | 93 | 93 | 93.2 | 93.4 |
Physical Properties
| (g/cc)Density20 °C kg.m-3 | 2.2 |
| Degree of Hardness Moh's Scale | 5.5-5.6 |
| Softening point(degree) | 1683 |
| Annealing point | 1215 |
| Defoamation Point | 1120 |