Specification :

This clear quartz rod has high purity, elevated temperature characteristics and low coefficient of thermal expansion, It serves as the material of the bridging rod for single and halogen lamps, fiber optic lighting, quartz making, wafer carriers and push rods in semiconductor industry

Dimensional Tolerance
Range of OD OD
d6mm ± 2.0%
6.00-15.00mm ± 1.25%
15.00-20.00mm ± 1.25%
20.00-25.00mm ± 1.25%
25.00-30.00mm ± 1.35%
30.00-50.00mm ± 1.5%

Chemical Composition Unit: ppm
Cr Ge Fe Mg Ti Ca Al Na Li K OH
 0.5 0.5 1.2 0.8 2.0 2.0 20 1.2 0.5 1.5  25

Physical Properties
Density 20 kg.m-3 ( × 103) 2.2
Coefficient of expansion 25-300  -1 ( × 10-6) 0.56
Softening point  1670
Annealing point  1210
Strain point  1110
Youngs modulus Pa 7.3× 105