large OD clear fused tube 1,OD of 200-460mm 2,WT range of 3.0-8.0mm 3,WT deviation(%) +/-10 4,OD deviation(%) +/-1.5

In order to meet the requirements of large wafer and solar cell diffusion, we can resize the OD320mm clear fused quartz tube, with the maximum OD up to 460mm, which is widely used in such fields as the microelectronics and solar cell diffusion. Since the reduction in cost of production, our price is very competitive in the market.

Chemical Composition (unit: ppm)

Al	Fe	K	Na	Li	Ca	Mg	Cu	Mn	Cr	B	Ti
5-12	0.19-1.5	0.71-1.76	0.12-1.76	0.38-0.76	0.17-1.23	0.05-0.5	0.05	0.05	<0.05	<0.1	<1.0

                                          (Different usage of tubes with different sand)

Physical Properties

Density 20°Ckg*m-3(×10 3)	2.2
Coefficient of expansion25-300°C°C-1	0.58
Softening point (°C)	1620
Annealing point (°C)	1180
Strain point (°C)	1060

  (The above date is only for your reference, which will change with the different impurity content)

    If you have any problem, pls feel free to contact us ,we'll response you ASAP.

quartz tube