Insulation brick export to India for tunnel kiln

Mullite insulation brick is one kind of high alumina refractory brick which the main crystalline phase is mullite (3Al2O3·2SiO2. The content of alumina is between 50%-80%.

1.Low thermal conductivity with good thermal insulation effect;
2.Low melting, low thermal conductivity, energy saving effect is obvious
3.Low impurity content,it conetent very lower iron and oxides such as alkali metal make mullite insulation brick with high refractoriness，the hihger content of alminum makes it keep good perfermance in reducing atmosphere.
4.Mullite insullation brick has high compressive strenth in hot state.