Natural Sintered Mullite #1994

Model Number: Natural Sintered Mullite#1994 Brand Name: BAIYUN Key Specifications/Special Features: Natural sintered mulliteFused Mullite is produced by melting mixed pure quartz sand and industrial alumina in huge electric arc furnace. With the high content of mullite crystal, high melting point, excellent thermal stability, low reversible thermal expansion and resistance to thermal shock and chemical corrosion at high temperature, the fused mullite can be widely used as lining bricks in glass body kiln and large hot wind furnace in iron-making blast furnace, as well as in ceramic kiln and performance. Item/GradeM45 M47 M60 M70 Al2O3(%, MIN.) 45 47 60 70 Fe2O3(%, MAX.) 1.0 1.20 1.35 1.30 SiO2(%,MAX) 52 50 37 27 TiO2(%) 0.8 1.0 1.80 0.80 K2O (%) 0.08 0.08 0.10 0.10 Na2O (%) 0.08 0.08 0.08 0.10 MgO (%) 0.10 0.10 0.10 0.10 CaO (%) 0.30 0.30 0.35 0.35 Buld density (g/cm3) 2.55 2.64 2.78 2.80 Refractoriness deg .C MIN 1750 1790 1820 1850 Apparent porosity % MAX 2.0 2.0 2.8 2.8 Mullite % MIN 55 65 78 78