Widely used in the filed of semiconductor, metallurgy,chemical industry, 

electric light source, photo-communication, medical equipment, scientific instruments and so on.

1. High purity quartz ,SiO2> =99.99%

2. No bubble, strip, chipping or scratch

3. we can manufacture the quartz products according to customer’s design

·  Features of JD Heat Resistant High Quality Milky Quartz Flange

1. High purity made of 99.99% pure quartz

2. Strong Hardness, Can reach Morse level 7.

3. High temperature resistance, can work under 1200°C continuously,and in short time can even work under 1500°C.

4. Acid and Alkali resistance. Except Hydrofluoric acid, JD Quartz Tube Heating Element Flange Furnace does not react with any acid

5. Electric insulation, it is 10000 times of usual glass.

6. High light transmittance , it is different from 85%-95% depend on different spectrum.

7. Excellent thermal shock stability ,Small thermal expansion coefficient,it is only 5.5×10-7/℃

8. Control in less than 20 PPM, 15 PPM, 10 PPM, 5 PPM ,2 PPM.