Black fused alumina has proper hardness, high toughness, good self-sharpening, high wear resistance, high skid resistance, excellent heat conductivity and bonding ability.
Available Size:
1-2 mm, 1-3 mm.
Applications:
Used as aggregate in highway, speedway, airport runway, bridge surface, stadium circle and anti-skid ground.
Typical Chemical Analysis:
Al2O3: 70%;
Fe2O3: 10%;
SiO2: 12%;
TiO2: 3%.
Total BA Content: > 95%.
Typical Physical Properties:
Color: Black;
Crystal Form: Trigonal System;
Moh's Hardness: ≥ 9.0;
Melting Point: 2050 °C;
Max. Working Temperature: 1850 °C;
Bulk Density: > 3.50 g/cm3;
Linear Expansion Coefficient (0-1600 °C): Approx. 7.