Brown Aluminium Oxide
Surface Preparation & Sandblasting
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Brown Aluminium Oxide, commonly referred to as Brown Fused Alumina (BFA) or simply Brown Aluminium Oxide, is synthesized by fusing high-purity bauxite (often with small amounts of silica, coke, and iron filings) in an electric arc furnace at temperatures above 2,000 °C . The result is a hard, dense, angular crystalline abrasive predominantly composed of α‑Al₂O₃, with aluminium oxide content typically ranging from 94–97 %
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BROWN ALUMINIUM OXIDE PHYSICAL PROPERTIES
Appearance: Brown granular
Crystal: Trigonal crystal
Bulk density: 1.95 g/cm³
True density: ≥ 3.9 g/cm³
Mohs Hardness: 9.0
Melting point: 2250 ℃
Refractory degree: 1900℃
Molecular formula: Al₂O₃
Al₂O₃ CAS No.: 1344-28-1
HS Code: 2818101000
BROWN ALUMINIUM OXIDE ADVANTAGES
High purity, good crystallization, strong fluidity
Small crystal size, impact resistance
Shaping grade particles are ideal for wet blasting and polishing abrasives
Can be processed according to user requirements
BROWN ALUMINIUM OXIDE APPLICATION
•F-grit for bonded abrasives such as resin bonded grinding wheels, vitrified grinding wheels.
•P-grit for coated abrasives such as sandpaper, sanding belts.
•Blasting media, metal preparation.
•Laminates, coatings, lapping, polishing.
•Anti-slip applications like floor, ceramics, auto brake parts.
•Manufacturing advanced refractory materials, castables, refractory bricks, etc.
Download Brown Fused Alumina TDS, HS Code 28181010
CHEMICAL COMPOSITION(%)
Model | Particle Size | Particle Size | Al₂O₃ | TiO₂ | CaO | SiO₂ | Fe₂O₃ |
|---|---|---|---|---|---|---|---|
A | F4-F24 | P12-P24 | ≥95.50 | ≤3.40 | ≤0.42 | ≤1.00 | ≤0.25 |
A | F30-F80 | P30-P80 | ≥95.00 | ≤3.40 | ≤0.42 | ≤1.00 | ≤0.25 |
A | F90-F150 | P100-P150 | ≥94.50 | ≤3.40 | ≤0.42 | ≤1.00 | ≤0.25 |
A | F180-F220 | P180-P220 | ≥94.00 | ≤3.60 | ≤0.45 | ≤1.00 | ≤0.25 |
A | F230-F800 #240-#1500 | P240-P1500 | ≥93.50 | ≤3.80 | ≤0.45 | ≤1.20 | ≤0.25 |
A | F1000-F1200 #2000-#2500 | P2000-P2500 | ≥93.00 | ≤4.00 | ≤0.50 | ≤1.40 | ≤0.25 |
A | #3000-#4000 | — | ≥92.50 | ≤4.50 | ≤0.55 | ≤1.60 | ≤0.25 |
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