Product Description
The high-quality silica brick is the key refractory in the high temperature positions of the coke oven, hot blast stove, glass tank and so on. Its main characteristics are: 3 highs (high purity, high refractoriness under load, high tridymite content); 4 lows(low true density, low expansion, low creep change, low residual quartz) and 1 good (correct size, pure color, perfect appearance).

The technical data:
High purity, SiO2 95-96. 5%
Apparent porosity, %17-21%
High refractoriness under load, T1, 1670-1700C
High tridymite, About 75%
Low true density,  2. 33-2. 3g/cm3
Low thermal expansion. 1. 25% max (room-1000C)
Low creep change (0. 2MPa), 1550C x 50h 0. 5% max
Low residual quartz, 0-0. 5%