quartz glass tube

Clear quartz tube serves as the primary choice of heat resistant for halogen lamps, metal halide lamps and heating component
Physical properties

Density 20kg * m
-3
(×10
3
)
2.2
Coefficient of expansion 25-300
-1
(×10
-6
)
0.5
Softening point
1710
Annealing point
1230
Strain point
1140
Youngs modulus(Pa)
7.3×10
5
Temperature : softening point temperature of about 1730 degrees Celsius ,1100 degrees Celsius in a long time use ,short-term maximum temperature up to 1450 degrees Celsius ;
Anti-corrosion : In addition to hydrofluoric acid ,is an almost non-acid and other substances a chemical reaction ,especially in the high temperature chemical stability is in any other engineering materials can not be compared;
Thermal stability :The thermal expansion coefficient of quartz galss ,is extremely small ,able to withsand drastic temperature changes ;
Transmittance good performance :quartz glass in the entire ultraviolet to infrared spectral bands have a good light transmission properties, visible light transmittance of 93% or more ,especially in the ultraviolet spectral region ,the largest up to 80% or more transmittance
Good electrical insulation properties :resistance of quartz glass is equivalent to ten thousand times the normal glass is an excellent electrical insulation materials even at high temperatures also has goog electrical properties .
quartz tube