Transparent 5ppm OH Quartz Glass Tubes
Product Features:
- These tubes advantages are high purity, good spectral transmission, well controlled dimension and low OH, etc.
- They're the best heat resisting material for lamps like: halogen lamps, mercury lamps, metal halide lamps, etc.
- We can produce the tubes within a very large diameter rang: OD 3-400mm, thickness wall 0.7 – 10.0mm , length maximum 3000mm.
- We also can apply some further processing like trim cutting, fire polishing, bending, pinching, grinding and others according to customers’ requirements.
- We also can control our tubes OH content within 20ppm\ 15ppm\10ppm\5ppm\2ppm as your special needs.
Dimensional Tolerance:
|
Range of OD
|
OD
|
WT
|
Siding
|
Out of Round
|
Bow/1220mm
|
|
≤6mm
|
±2.0%
|
±10%
|
12%
|
2.00%
|
2.5mm
|
|
6.00mm-15.00mm
|
±1.25%
|
±8%
|
10%
|
1.50%
|
2.5mm
|
|
15.00mm-20.00mm
|
±1.25%
|
±10%
|
15%
|
1.50%
|
2.5mm
|
|
20.00mm-25.00mm
|
±1.25%
|
±10%
|
15%
|
1.50%
|
3.0mm
|
|
25.00mm-30.00mm
|
±1.35%
|
±12%
|
15%
|
1.50%
|
3.0mm
|
|
30.00mm-80.00mm
|
±1.5%
|
±14%
|
15%
|
2.00%
|
3.0mm
|
Physical Property:
|
|
214
|
219
|
254
|
|
Density (g/cc)
|
2.2
|
2.21
|
2.21
|
|
Coefficient of Thermal Expansion(cm/cm°C)
|
5.5*10-7
|
5.9*10-7
|
6.7*10-7
|
|
Softening Point (°C)
|
1683
|
1660
|
1615
|
|
Annealing Point (°C)
|
1215
|
1204
|
1163
|
|
Strain Point (°C)
|
1120
|
1106
|
1066
|
|
Refractive Index
|
1.4585
|
1.456
|
1.46
|
|
Specific Heat (j/kgOK)
|
670
|
700
|
690
|
|
Compressive Strength (Pa)
|
>1.1*109
|
0.94*109
|
0.55*109
|
|
Youngs Modulus (Pa)
|
7.2*1010
|
7.5*1010
|
7*1010
|