Detailed product introduction
1. Product Overview
Brown corundum (BFA) is an artificial corundum material made by melting bauxite and coke at high temperatures in an electric arc furnace and then cooling and crystallizing them. Its main component is α-Al₂O₃, and it has a brownish color. Due to its high hardness and wear resistance, it is widely used in the industrial field.
2. Product parameters
Indicator value/description
Chemical composition: Al₂O₃≥95%, SiO₂≤1.5%, Fe₂O₃≤0.5%
Mohs hardness 9.0
Bulk density 1.75-1.95 g/cm³
Melting point: 2050℃
Particle size range: 16#-240# (coarse/medium/fine powder)
Its toughness is superior to that of white corundum and silicon carbide
3. Main Applications
Grinding and polishing: Manufacturing grinding wheels, cutting discs, and grinding pastes.
Sandblasting for rust removal: Metal surface treatment (ships, automobiles).
Refractory materials: kiln lining bricks, castable additives.
Wear-resistant floor: Industrial floor reinforcing aggregate.
4. Product advantages
✅ High cost performance: lower cost than white corundum, suitable for large-scale industrial use.
✅ Heat resistance: Stable up to 1900 ° C, suitable for fire-resistant scenarios.
✅ Environmentally safe: Free silicon, compliant with OSHA dust standards.
5. Packaging and Transportation
25kg/50kg woven bags (moisture-proof inner lining), or 1-ton pallets.
Support sea and land transportation, and provide MSDS and quality inspection reports.