... 3.0% 3). High strength, wear-resisting, etc. Sintered refractory corundum fire brick 1.Features: Fine performance at high temperature, high bulk density, high strength, wear- resisting, erosion ... >1650Refractory °C1790179017901790C.C.S.MPa80~9560-6565-80≥85B.D.g/cm33.0-3.33.0-3.2>3.0≥3 ... ±0.31550×3±0.31550×3±0.21600×3 Sintered refractory corundum fire brick