Corundum Mullite Bricks Specification | ||||||||
Item/Index | Mullite Bricks | Resintering Fused Mullite Bricks | Mullite-Corundum Bricks | Corundum-Mullite Bricks | ||||
Al2O3 | ≥70% | ≥75% | ≥80% | ≥90% | ||||
SiO2 | ≤25% | ≤23% | ≤18% | ≤8% | ||||
Fe2O3 | ≤0.5% | ≤0.5% | ≤0.5% | ≤0.3% | ||||
Bulk Density | ≥2.55g/cm | ≥2.65g/cm | ≥2.70g/cm | ≥2.90g/cm | ||||
Initial Refractoriness Under Load/℃ | ≥1630 | ≥1700 | ≥1650 | ≥1700 | ||||
Apparent Porosity/% | ≤17% | ≤14% | ≤19% | ≤18% | ||||
Cold crushing strength/Mpa | ≥90MPa | ≥100MPa | ≥80MPa | ≥100MPa |