Provide UV block quartz tubing,UV stop quartz tubes,UV lamp tubes

It can almost prevent all the UV rays
This cerium-added quartz tube can effectively prevent all radiation of UV-B and UV-C ultraviolet and most radiation of UV-A ultraviolet .It is the best materials to prevent UV with best transparent performance. It can be used to make quartz halogen lamp , gas discharge lamp and other UV lamp-house , which will effectively protect human and object from hurt of ultraviolet and maintain the best efficiency of light transmission.
Dimensional Tolerance
Range of OD
OD
WT
Siding
Out of Round
Bow/1220mm
≤6mm
±2.0%
±10%
12%
2.0%
2.5mm
6.00-15.00mm
±1.25%
±8%
10%
1.5%
2.5mm
15.00-20.00mm
±1.25%
±10%
15%
1.5%
2.5mm
20.00-25.00mm
±1.25%
±10%
15%
1.5%
3.0mm
25.00-30.00mm
±1.35%
±12%
15%
1.5%
3.0mm
Chemical Composition Unit: ppm
Cr
Ge
Fe
Mg
Ti
Ca
Al
Na
Li
K
OH
not more than 0.5
not more than 0.4
1.5
0.5
2.5
2.3
25
2.5
0.6
2.5
1-50
Physical Properties
Density 20°C kg.m
-3
(×10
3
)
2.2
Coefficient of expansion 25-300°C °C
-1
(×10
-6
)
0.58
Softening point °C
1620
Annealing point °C
160
Strain point °C
1060
Youngs modulus Pa
7.1×10
5
Spectral Transmission at 1.0mm Thickness
Nm
not longer than 220
230-280
290-330
315
350
380
590
780
%
0
not more than 19
0
15
88
92
93
93