JM Mullite Refractory Brick

JM Mullite Refractory Brick Composition Mullite Insulating Refractory Brick is madeof aluminum powder,mullite powder,kyanite,suzhou clayand other high pure raw material.which can minimize the effects of inpurity effectively.Produced by special technology,sintering at high temperature,then boundary cutoff to make precise size. Features With features of good thermal shock resistance,stable volume, high service temperature,high cold crushing strength and low thermal conductivity. ApplicationAs the most perfect lining and insulating material in high temperature furnaces and klins,this product have been widely used in many kinds of furnaces inmetallurgical,mechanical,ceramic,petrochemical industries.It is a perfect energy-saving product,the maximum service temperatureis 1500oC. Spec./Type DFJM130DFJM130DFJM130DFJM140DFJM140DFJM140DFJM150DFJM150Bulk Density,(g/m3)≤ 0.60.81.01.01.21.01.01.2Cold Crushing Strength (Mpa)≥ 1.52.54.21.53.24.04.05.0Thermal Shock Resistance (1100oC water quening,cycles) 1020201020202020Test Temperature at which PLC≤1%(oC×h) 1350×121350×121350×121400×121400×121400×121500×121500×12Thermal Conductivity 350±25oC(W/m.k) 0.200.230.330.200.250.330.330.40Al2O3 % ≥ 5252525555556067Fe2O3 % ≤ 0.90.90.90.80.80.80.80.6 Note:1.The The data of thermal conductivity is obtained by flat test. We can aslo produce as the requested specification.