round quartz boat SiO2>99.95%

quartz boat 1.Temperature 1100 degree 2.Anti-corrosion 3.Thermal stability 4.Good transmittance,quartz boat

ound quartz boat SiO2>99.5%

Physical properties
Density 20kg * m-3 (×103)	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  ×105

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

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