规格性能 Specification | MA-70 | MA-65 | |||
砂 Grit >0.1mm | 粉 Grit ≤0.1mm | 砂 Powdery >0.1mm | 粉 Powdery ≤0.1mm | ||
化学成份 Chemical Composition | Al2O3% ≥ | 67-75 | 67-75 | 64-68 | 64-68 |
SiO2% ≤ | 0.4 | 0.4 | 0.6 | 0.6 | |
Fe2O3% ≤ | 0.5 | 0.5 | 0.25 | 0.3 | |
MgO%≤ | 23-31 | 23-31 | 31-35 | 3135 | |
物理性能 Physical Performance | 磁性物% ≤ Magnetic Material | 0.05 | 0.1 | 0.05 | 0.1 |
显气孔率%≤ Apparent Porosity | 5.0 | 3.0 | |||
体积密度g/cm3≥ Volume Density | 3.30 | 3.30 |