Shandong Gaoha Refractories Technology Co.,Ltd.

Name Alumina bubble products Ingredient bubble alumina，corundum powder，Calcined powder as raw material etc Max service temperature 1800℃ Advantages 1 high temperature resistance 2 low thermal conductivity, good thermal insulation 3 low bulk density 4excellent resistance to acids and alkalis corrosion Size and specifications 230x114x65mm The size, density, chemical composition can be customized. Technical Data Name / Indexes/ Item MLQ-84 MLQ-90 LQ-1.2 LQ-1.5 LQ-1.7 Al2O3％≥ 84 90 98.5 98.5 98.5 Fe2O3％≥ 0.8 0.5 0.3 0.3 0.3 SiO2％≤ 15 9 1.0 1.0 1.0 Bulk Density (g/cm3 ≥) 1.5 1.5 1.2 1.5 1.7 Compressive strength at normal temperature (MPa≥) 16 15 3 12 15 Porosity % ≥ 58 60 62 60 58 Refractoriness under load at0.1Mpa KD °C≥ 1650 1700 1700 1700 1700 Refractoriness (°C)≥ 1800 1800 1800 1800 1800 Hot side 1000°C W/m.k ≤ 1.2 1.5 0.95 1.05 1.15