Click to view original imageQuartz glass tube has good heat-resistant property, which is widely used as light tube, heater tube, industrial pipe, and so on.
Specification
|
Outside diameter (mm)
|
Thickness (mm)
|
Thickness tolerance (%)
|
Outside diameter tolerance (%)
|
|
3-50
|
1-5
|
+/-5
|
+/-1
|
|
50-100
|
2-5
|
+/-5
|
+/-1
|
|
100-200
|
3-6
|
+/-5
|
+/-1
|
|
200-460
|
4-8
|
+/-5
|
+/-1
|
Chemical composition unit: ppm
|
Al
|
Fe
|
K
|
Na
|
Li
|
Ca
|
Mg
|
Cu
|
Mn
|
Cr
|
B
|
Ti
|
|
5-12
|
0.19-1.5
|
0.71-1.6
|
0.12-1.76
|
0.38-0.76
|
0.17-1.23
|
0.05-0.5
|
0.05
|
0.05
|
<0.05
|
<0.1
|
<1.0
|
Characteristics
|
Mechanical Property
|
Reference Value
|
|
Density
|
2.2g/cm3
|
|
1280¡æ
|
|
|
Softening Point
|
1780¡æ
|
|
Annealing Point
|
1250¡æ
|
|
Specific Heat(20¡«350¡æ)
|
670J/kg.¡æ
|
|
Thermal Conductivity(20¡æ)
|
1.4W/m.¡æ
|
|
Refractive Index
|
1.4585
|
|
Coefficient of thermal expansion
|
5.5×10-7cm/cm.¡æ
|
|
Hot work temperature
|
1750¡«2050¡æ
|
|
The temperature for a short time
|
1300¡æ
|
|
The temperature for a long time
|
1100¡æ
|