Technical Characteristics Excellent thermal stability and thermal shock resistance Excellent mechanical strength Light of weight to decrease the pressure of stove body Easy to instant Excellent elasticity to compensate the crack of liner l Low thermal conductivity Low heat storae Application Range Furnace lines and back of industrial furnace and heating equipment Type ItemStandard typeSTDHigh pure typeHPHigh aluminumTypeHAContain Zr typeZAAL2O3(%)45-4747-4952-5539-41AL2O3+SiO2(%)999999-AL2O3+SiO2+ZrO2(%)---99ZrO2(%)---15-17Fe2O3≤(%)≤0.5≤0.2≤0.2≤0.2Na2O+K2O≤(%)≤0.2≤0.2≤0.2≤0.2Densitykg/m3160-250160-250160-250160-250Thermal conductivityw/m.k1050/0.161100/0.161200/0.161300/0.17Work Temperature()1050110012001350Classification Temperature()1260126013501450Shrinkage on heating(%) 24Hours of 128kg/m3-3.5(1050)-3.5(1100)-3.5(1200)-3.5(1300)ColorWhiteWhiteWhiteWhite