Kalksandstein

Silica brick 1.Physical and Chemical Properties High puritySiO2 95-96.5%DenseApparent porosity17-21%High RULT1,1670-1700High tridymite contentabout 75%Low true density2.33-2.3g/cm3Low thermal expansion1.25%room-10000.2MPa ×1550×50hLow creep0.5%Low residual quartz0-0.5% 2.Technical features Crystal silica is used as starting material, composite mineralizer and nanometer materials are used, scientific sintering and controlling schedule are adopted. 3.With dense and smooth appearance, uniform corner and edge, pure color and luster and accurate size.