Quartz Sleeve(Large Size Quartz Tube/Ozone-free quartz tubes/quartz tube with one end domed or flat lamp body)

Size:50mm-300mm
Thickness:2mm-10mm
Softening point:1670
Coefficient of expansion:0.5-0.55 ( T:25-300 )
quartz glass sleeve (quartz sleeve)


It is made from the clear quartz tube, thermal bending, sealing fire polishing ,bevel edge , end round sealing, Flat sealing. Can be processed according to request. Good spectral transmission, accurate dimension and lower OH content, The quartz glass sleeves usually use as protector for UV germicidal lamps. putting deep into liquid. Protecting the UV lamps
High purity ,strong heat resistance and low coefficient of thermal expansion
We could make many kind further quartz products according your demand.
Dimensional Tolerance
Range of OD
WT
Siding
Out of Round
Bow/1220mm
18.5±0.15
1.0±0.15
15%
1.5%
2.5%
19.0±0.20
1.0±0.15
15%
1.5%
2.5%
20.0±0.20
1.0±0.15
15%
1.5%
2.5%
23.0±0.30
1.5±0.15
15%
1.5%
2.5%
25.0±0.30
1.5±0.15
15%
1.5%
2.5%
25.0±0.30
2.0±0.20
15%
1.5%
2.5%
25.0±0.30
2.5±0.20
15%
1.5%
2.5%
26.0±0.30
2.0±0.20
15%
1.5%
2.5%
28.0±0.30
1.5±0.20
15%
1.5%
2.5%
28.0±0.30
2.0±0.20
15%
1.5%
2.5%
30.0±0.30
1.5±0.20
15%
1.5%
2.5%
30.0±0.30
1.8±0.20
15%
1.5%
2.5%
30.0±0.30
2.0±0.20
15%
1.5%
2.5%
31.0±0.30
1.8±0.20
15%
1.5%
2.5%






Chemical composition unit : ppm
Al
Fe
K
Na
Li
Ca
Mg
Cu
Mn
Pb
B
Cr
OH
25
1.5
2.5
2.5
0.6
2.3
0.5
0.1
0.5
0.01
0.2
0.1
<10
Physical Properties
Density 20 kg*m
-3
(×10
3
)
2.2
Coefficient of expansion 25-300
-1
(×10
-6
)
0.56
Softening point
1630
Annealing point
1180
Strain point
1070
Youngs modulus(Pa)
7.3×10
5