Brown Fused Alumina Al2O3: 95.5% min SiO2: 0.8% max Fe2O3:0.08% max TiO2:2.3% maxCaO: 0.4% max
Brown Fused Alumina
Properties:
The bauxite, coke (anthracite) as main raw material, by smelting at high temperature in the EAF, the main chemical composition: Al²0³, Ti 0² also small amounts of Si0² and Fe²0³. Characteristics: higher toughness than SiC, Micro hardness 1800-2200 kg/mm², bulk density ≥ 3.85 / cm³, high temperature, high refractoriness 1850°C.
Usage:
Made for abrasive, suitable for grinding high tensile strength metal, such as a variety of general-purpose steel, malleable iron and hard bronze, etc. It can also create high level refractory material.
Physical Performance Index
Item | Index |
Color | Brown |
Crystal shape | Trigonal |
Hardness(mohs) | ≥9.0 |
Melting Point (°C) | 2250 |
True density (g/cm3) | ≥3. 90 |
Linear Expansion Coefficient(0—1600°C) | 7—9 |
Name | Type | Chemical components% | |||
AL2O3 | Fe2O3 | SiO2 | Density | ||
Brown alumina | TL-1 | ≥95 | ≤0.3 | ≤1.5 | 3.85 |
TL-11 | ≥90 | ≤1.3 | ≤1.5 | 3.85 | |
TL-2 | ≥85 | ≤1.8 | ≤1.5 | 3.85 | |
TL-2 | ≥80 | ≤2.3 | ≤1.5 | 3.85 | |
TL-3 | ≥70 | ≤4.3 | ≤1.5 | 3.85 | |
Abrasives Brown Fused Alumina
