Silica brick features:
The brick is shaped by high pressure and sintered at high temperature. with excellent high-temperature physical performance and chemical erosion resistance.
The technical specification:
item
Specification
floor & wall brick
other brick
SiO2 ≥
95%
Fe2O3 ≤
1.5%
Al2O3 ≤
1.5%
CaO ≤
2.5%
cold crushing strength ≥
40Mpa
35Mpa
apparent porosity ≤
22%
24%
true density ≤
2.33g/cm3
2.34g/cm3
thermal expansion 1000ºC≤
1.28%
1.30%
residual quartz ≤
1.0%
refractoriness under load Ta ≥
1650ºC
