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Transparent Quartz Twin Tubes

Writer:World Quartz  Date:

                          

Transparent twin tube has excellent characteristics in basic physical performance of ordinary transparent quartz glass tube.
Specifications:
8x17mm 
11x23mm
15x32mm 
Length:50-4000mm
Specifications can be made by the requirement of customers.
Chemical composition   unit : ppm

 
Al
 
Fe
 
K
 
Na
 
Li
 
Ca
 
Mg
 
Cu
 
Mn
 
Pb
 
B
 
Ti
20 1.0 1.5 2.5 1.0 2.0 0.5 0.3 0.5 <0.01 <0.2 2.0
 
 
Physical Properties
        Density 20 deg c 2.2-1(×10-6) kg*m-3(×103)
 Coefficient of expansion (25-300 deg c) 0.56 deg c -1(×10-6)
   Softening point 1710 deg c
 Annealing point 1230 deg c
Strain point 1140 deg c
Youngs modulus(Pa) 7.3×105