Alumina pipe 1. Al2O3>99.0%, 2. Density, 3.85g/cm3, 3. Flexural strength, 360Mpa, 4. Max. service temp., 1800C. We ... . Al2O3>99.0%, 2. Density, 3.85g/cm3. Flexural strength, 360Mpa, 4. Max. service temp., 1800C.Features:1. high purity, (Al2O3≥99.7%; Fe2O3≤0.1%; SiO2≤0.2%.)2 ...