UV stop quartz tube

UV stop quartz tube
It can almost prevent all the UV rays It serves as UV-stop halogen lamp, UV-stop mercury lamp, etc.
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
0.5
0.4
1.5
0.5
2.5
2.3
25
2.5
0.6
2.5
1-50
Physical Properties
Density 20 kg.m
-3
(×10
3
)
2.2
Coefficient of expansion 25-300
-1
(×10
-6
)
0.58
Softening point
1620
Annealing point
160
Strain point
1060
Youngs modulus Pa
7.1×10
5
Spectral Transmission at 1.0mm Thickness
Nm
220
230-280
290-330
315
350
380
590
780
%
0
19
0
15
88
92
93
93