clear quartz pipe

Our quartz tube is made from high purity material, 99.99%. Dia. is 3-300mm,
GOOD QUAILITY, GOOD SERVICE!
Transparent Quartz tube physical Properties:
Glass
A
B
C
Density @ 20 (
±05g/CM
2
)
2.2
2.21
2.21
Thermal Expansion (cm/cm
o
C)
5.4 x 10
-7

5.8 x 10
-7

6.6 x 10
-7
Thermal Conductivity (25
o
C)
0.00323 Cal / cm - sec -
o
C
Young’s Modulus (x 10
3
kg/ mm
2
)
7.2
7.5
7.0
Softening Point (
o
C)
1730
1680
1660
Annealing Point (
o
C)
1215
1205
1165
Strain Point (
o
C)
1120
1100
1060
Resistivity (CM) @ 350
o
7 x 10
9

2.5 x 10
10

5 x 10
10

Dielectrical Constant (@ 1Mhz)
3.70
5.76
6.02
Standard Size & Tolerance (Tube) :
Size(mm)
OD(mm)
W.t.(mm)
Length(mm)
Siding Max
Bow Max
Oval Max
<15
±0.15
±0.10
±1.0
0.1
0.15
2‰
15-30
±0.25
±0.15
±1.0
0.13
0.25
2‰
30-50
±0.50
±0.15
±1.0
0.15
0.5
2‰
50-70
±1.50
±0.20
±1.0
0.2
0.7
3‰
70-100
±2.00
±0.25
±1.0
0.2
1
4‰