We've been making and exporting fused silica sand and powder for many years to the industry of refractory, investment casting, thermal ceramic,fused silica crucible,fused silica ceramic roller etc.
1. Fused silica grains/powder
1.1 Physical Properties
Colour: Transparent or white
Melting: Temperature approx.1750℃
Specific Gravity: 2.21g/cm3
Hardness: 7 Mohs
Thermal Expansion: 0.5*10-6
1.3.Different sizes are available:
-4/10mesh,-10/20mesh,-20/50mesh,-30/50mesh.-50/100mesh,-6/50mesh,-100mesh, 120F , 270F, 325F , 400F , 600mesh,ect.
2. Fused silica bricks,fused silica castables:
High purity of Chemical composition :SiO2>99%(will not pollute the glass liquid)
Very low coefficient of thermal expansion: 0.5×10-6/℃
Excellent thermal shock resistance: more than 35 cooling cycles.