product code: IP104 type comparison: GE214LD 
                              
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
not longer than 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
less than 0.5 0.5 1.2 0.8 2.0 2.0 20 1.2 0.5 1.5 less than 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