Silicon: 99.99%

High temperature resistance

Quartz glass softening temperature is about 1730 C, can be prolonged use at 1100 C, short-term maximum temperature up to 1450 C.

Good thermal stability

Thermal expansion coefficient of quartz glass is extremely small, it can withstand severe temperature changes.When quartz glass is heated to about 1100C, it will not burst into the water at room temperature.

Good light transmission properties

Quartz glass have better light transmission properties in entire spectral bands from ultraviolet to infrared,visible light transmittance of 93% or more, particularly in the UV spectral region, the maximum transmittance of up to 80 or more.

Good electrical insulation properties

Resistance value of quartz glass is equivalent to one million times that of ordinary glass, it is an excellent electrical insulating materials, even at high temperatures it also have good electrical properties.Quartz glass has above excellent physical and chemical properties, it is widely used in electric light sources, semiconductors, optical communications, military, metallurgy, building materials, chemical, mechanical, electrical, environmental protection and other fields.