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| Customization: | Available |
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| Natural Abrasive Type: | Natural Corundum |
| Artificial Abrasive Type: | Corundum Abrasives |
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Brown Fused Alumina (BFA) designed for optimal performance in sandblasting applications.this remarkable material is born from the fusion and crystallization under intense heat of bauxite and other select raw materials. Its standout features include exceptional hardness, robust toughness, and precise grain size. Ideal for crafting abrasive tools, it excels in grinding high-tensile metals like carbon steel, versatile alloy steel, annealed malleable iron, and resilient bronze. Additionally, it serves as an excellent refractory material.
Distinctive Characteristics: How Does Tilting Furnace Melted BFA Differ from Fixing Furnace Melted BFA?
Innovative Processing Techniques: Ball Milling & Barmac ProcessAn In-Depth Exploration Awaits
1. The Tilting Furnace Process: For a purer composition, SiO2 content is kept under 1% compared to up to 1.5% in the Fixed Furnace method.
2. The Barmac Process: Elevates density with a rounder grain shape, surpassing the density achieved by traditional ball milling.
3. Enhanced Al2O3 Content: BFA produced via the Tilting Furnace process boasts a higher aluminum oxide concentration.
4. Exceptional Toughness: Corundum crafted through the dumping furnace process exhibits outstanding toughness, making it ideal for abrasive products.
Understanding the Distinction: F-grit vs. P-grit Abrasive Grains
F-grit: Perfectly suited for bonded abrasive tools, offering consistency and performance.
P-grit: Tailor-made for coated abrasive tools, featuring a tighter size distribution, reduced density, and superior self-sharpening qualities compared to non-P-grit abrasives, ensuring a more uniform surface finish.
Grit size: 16#, 20#, 24#, 30#, 36#, 46#, 54#, 60#, 80#, 100#, 120#, 150#, 180#, 220#
Micropowder: 240#, 280#, 320#, 360#, 400#, 500#, 600#, 800#, 1000#, 1200#, 1500#, 2000#
Refractory Grit size: 1-0mm, 3-1mm, 5-3mm, 5-8mm, -200mesh, -240mesh, -320mesh.
| Purpose | Specification | Size | Al2O3(≥) | Fe2O3(≤) | SiO2≤ | TiO2≤ | Magnetic |
| For abrasive | F grit |
12#-80# | 95.0 | 0.3 | 1.5 | 3.0 | 0.05 |
| 90#-150# | 94.0 | 0.3 | 1.5 | 3.0 | 0.03 | ||
| 180#-240# | 93.0 | 0.3 | 1.5 | 3.5 | 0.02 | ||
P grit |
8#-80# | 95.0 | 0.2 | 1.2 | 3.0 | 0.05 | |
| 100#-150# | 94.0 | 0.2 | 1.2 | 3.0 | 0.03 | ||
| 180#-220# | 93.0 | 0.3 | 1.5 | 3.5 | 0.02 | ||
| Micro Powder | W0.5-W63 F320-F1500 | 92.5 | 0.5 | 1.8 | 4.0 | ||
| For refractory | Size for Sand | 0-1mm 1-3mm 3-5mm 5-8mm 8-12mm | 95.5 | 0.3 | 1.5 | 3.0 | |
| 0-3mm 0-5mm 0-10mm 0-25mm | 95.0 | 0.3 | 1.5 | 3.0 | |||
| Fine powder | 100F 200F 325F | 94.5 | 0.5 | 1.5 | 3.5 |
| Item | Index |
| Colour | Dark brown(Deep blue after calcination) |
| Crystal form | Trigonal crystal |
| Hardness(MO) | ≥9.0 |
| Melting point(°c) | 2250 |
| Maximum service temperature°c | 1900 |
| True density(g/cm3) | ≥3.9 |
| Coefficient of linear expansion | 7-9 |
| Grit No. | Bulk Density | Grit No. | Bulk Density |
| F12 | 2.02-2.10 | F60 | 1.76-1.84 |
| F14 | 2.00-2.08 | F70 | 1.75-1.83 |
| F16 | 1.97-2.05 | F80 | 1.73-1.81 |
| F20 | 1.94-2.02 | F90 | 1.71-1.79 |
| F22 | 1.92-2.00 | F100 | 1.64-1.72 |
| F24 | 1.90-1.98 | F120 | 1.61-1.69 |
| F30 | 1.88-1.96 | F150 | 1.59-1.67 |
| F36 | 1.87-1.95 | F180 | 1.57-1.67 |
| F40 | 1.81-1.89 | F220 | 1.55-1.63 |
| F46 | 1.79-1.87 | F60 | 1.76-1.84 |
| F54 | 1.77-1.85 |
| Type | Grit | Al2O3 | TiO2 | CaO | SiO2 | Fe2O3 |
| A | F4-F80 | 95.00-97.50 | 1.70-3.40 | ≤0.42 | ≤1.00 | ≤0.30 |
| F90-F150 | 94.50-97.00 | |||||
| F180-F220 | 94.00-97.00 | 1.70-3.60 | ≤0.45 | ≤1.00 | ≤0.30 | |
| F230-F800 | ≥93.50 | 1.70-3.80 | ≤0.45 | ≤1.20 | ≤0.30 | |
| F1000-F1200 | ≥93.00 | ≤4.00 | ≤0.50 | ≤1.40 | ≤0.30 | |
| A-B | F4-F80 | ≥94.00 | 1.50-3.80 | ≤0.45 | ≤1.20 | ≤0.30 |
| F90-F220 | ≥93.00 | 1.50-4.00 | ≤0.50 | ≤1.40 | ≤0.30 | |
| F230-F800 | ≥92.5 | ≤4.20 | ≤0.60 | ≤1.60 | ≤0.30 | |
| F1000-F1200 | ≥92.00 | ≤4.20 | ≤0.60 | ≤1.80 | ≤0.30 | |
| A-P | P12-P80 | 95.00-97.50 | 1.70-3.40 | ≤0.42 | ≤1.00 | ≤0.30 |
| P100-P150 | 94.50-97.00 | |||||
| P180-P220 | 94.00-97.00 | 1.70-3.60 | ≤0.45 | ≤1.00 | ≤0.30 | |
| P240-P800 | ≥93.50 | 1.70-3.80 | ≤0.45 | ≤1.20 | ≤0.30 | |
| P1000-P1200 | ≥93.00 | ≤4.00 | ≤0.50 | ≤1.40 | ≤0.30 | |
| P1500-P2500 | ≥92.50 | ≤4.20 | ≤0.55 | ≤1.60 | ≤0.30 | |
| A-R | 0-1mm | 94.00-97.50 | 1.50-3.80 | ≤0.45 | ≤1.40 | ≤0.30 |
| 1-3mm | 94.00-97.50 | 1.50-3.80 | ≤0.45 | ≤1.40 | ≤0.30 | |
| 3-5mm | 94.00-97.50 | 1.50-3.80 | ≤0.45 | ≤1.40 | ≤0.30 | |
| 5-8mm | 94.00-97.50 | 1.50-3.80 | ≤0.45 | ≤1.40 | ≤0.30 |
Applications for refractory industrial:
Unshaped refractory, stereotypes refractory, castable, ladle refractory, blast furnace hot air furnace series combination brick, high alumina brick, carbon refractory, mullite brick, gun mud, Bulk materials, ceramic bricks, composite bricks, corundum products, charge, pound, refractory raw materials, abrasive raw materials, used in steel mills, foundries, glass factory high-end refractories.
Applications for abrasives:
1. As the essential raw material for both unshaped and shaped refractory applications, our Brown Fused Alumina ensures durability and reliability.
2. For crafting friction products and abrasion-resistant ground surfaces, offering unparalleled resistance and durability.
3. Ideal for resin or ceramic bonded abrasives, such as grinding wheels and cutting-off wheels, providing superior abrasive capabilities.
4. Perfect for grinding and polishing needs, including grinding stones, blocks, and flap discs for a flawless finish.
5. For producing coated abrasives, such as abrasive paper, cloth, belts, and Guze, ensuring a seamless abrasive performance.
6. Used in creating molds for precision casting and as a medium for grinding, lapping, and polishing to achieve exacting standards.
7. Essential for shot-blasting applications, including sandblasting oil pipelines and ships, delivering thorough and effective cleaning.
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