Asbestos-free.a ideal construction material as rear lining and the thermal conductivity is changed with temperature small especially. Applying to the cement kiln, glass kiln, and ceramic kiln mainly, all kinds of heating furnaces, heat-treatment furnaces of petrochemical industry. JGG Series High density productsPerformance indexBrandJGG2-32JGG2-50JGG2-85ClassicTemperature ()850850850Density (kg/m3)320500850Cold crushingStrength (Mpa)≥4.0≥5.5≥9.8FlexuralStrength (Mpa)≥3.0≥5.0≥8.0Thermalconductivity(W/mK) 700.070.080.12Shrinkage(1000 × 16hs )≤ 2.0≤ 2.0≤ 2.0Applicable for area of low-expansion and high shock-resistant