quartz rod
1.OD:1-50mm
2.high purity
3.elevated temperature characteristics

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 ≤6mm ±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