refractory sillimanite brick

Sillimanite brick -major features 1. typical physical &chemical properties: ItemSillimanite brick S-65Sillimanite brick S-60LS-65LS-60Al2O3 %≥65≥60SiO2 %≤32≤37Fe2O3 %≤0.5≤1B.D. g/cm3≥2.5≥2.3A.P. %≤18≤19C.C.S. MPa≥80≥80R.U.L. °C≥1650≥1600(0.2MPa,0.6%) 2.very excellent thermal shock resistance: 3. high refractoriness and high strength underhigh temperature. sillimanite bricks are widely used infeeder channels, feeder covers, burners, melting bottom paving of glass furnaces and other applications