Isolierung Brick

The main features of the insulation bricks: Insulation bricks have the below main features: 1) Lower content in iron, alkaline and impurities, good high temperature properties, energy good resistance to reduction atmosphere. 2) Homogeneous structure, light weight, high crushing strength, good insulating properties, energy saving because lower heat storage in the furnace body during cooling-heating cycles. 3) High strength, good volume stability and thermal shock resistance under high temperature. 4) Less size tolerance due to grinding and shaping after sintering, which meets the requirement of construction. Brand Item JM Special Insulation BricksQN-23QN-26QN-28QN-30Safety application temp. 1260143015401650Bulk density g/cm3 0.50.80.951.05Cold crushing strength MPa ≥ 1.02.02.22.7Reheat linear change % ≤ 1230°C×24h1400°C×24h1510°C×24h1600°C×24h-0.3-0.5-0.8-1.0Reversible thermal expansion 1090°C% ≤ 0.50.60.80.9Thermal conductivity W/m.K400 °C0.150.280.330.41600 °C0.170.310.360.43800 °C0.190.330.390.451000°C0.240.350.420.48Al2O3 % ≥ 37506068Fe2O3 % ≤ 1.01.00.70.5SiO2 % ≤ 55433629