High-purity corundum brick

Item Indicator High—purity corundum bricksGY-99GY-98GY-96GY-90Al2O3 % ≥ 99989690Fe2O3 % ≤ 0.150.30.40.5SiO2 % ≤ 0.3///Volume Density (g/cm3) 3.23.23.13.0Apparent porosity % 18202020Compressive strength (Mpa) ≥ 90908080Refractoriness under load °C (0.2 Mpa,0.6%) 1740174017201700 Reheating linear change rate % (1600°C*2h) ±0.2±0.2±0.2(1550°C*2h)±0.3(1550°C*2h) The product imported tabular alumina, high-purity fused corundum as the main raw materials, and the application of advanced applied technology of superfine powder,mixing and drying, forming,firing at high temperature shuttle kiln made.The material is widely used in residue gasification,ammonia, Sec conversion furnace,carbon black reactor and refractory furnaces and other equipment.Products,dimensions,physical and chemical indicators of useful life are up to customer requirements.