Detailed Product Description

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 end halogen lamps,fiber optic lighting ,quartz making ,wafer and push rods in semiconductor indyustry .

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	T i	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

The above date are only for reference