Original
By certification 
5 Transparent Twin quartz tube
1.Application field
Used in heating pipe, electric heat pipe, far infrared baking paint and other fields.
2.Product features
Strict dimensional tolerance control and high purity quartz products. According to the requirements of the customer we could arrange ordinary dehydrogenation and vacuum dehydrogenation.
3.Product type
FDG0118， transparent Twin quartz tube
4.Typical dimensions and tolerance
OD |
OD Ttolerance |
| (mm) | （mm） |
Φ23 |
|
Φ33 |
|
Note: It can also be made according to the special requirements of customers
5. Physical parameters
Density |
Thermal expansion coefficient |
Softening Point |
Annealing point |
Deformation point |
（g/m3 20℃） |
（℃-1 200-300℃） |
（℃） |
（℃） |
（℃） |
2.2 |
5.5*10-7 |
1680 |
1220 |
1120 |
6.Chemical element content typical values
Chemical element content typical values(PPM) | |||||||||||||
Element |
Li |
Na |
Mg |
K |
Ca |
Ti |
Cr |
Mn |
Fe |
Co |
Ni |
Cu |
Al |
Quartz sand type |
(PPM) |
||||||||||||
FD01 |
2 |
5 |
2 |
5 |
2 |
5 |
0.1 |
0.1 |
5 |
0.1 |
0.1 |
0.1 |
30 |
7.OH content
| Original hydroxyl | OH content After Baking |
130-150PPM |
＜70PPM,＜50PPM,＜10PPM |
Note: It can also be made according to the special requirements of customers
8.Optical properties
http://www.fudongquartz.com/
