Customization: | Available |
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Natural Abrasive Type: | Natural Corundum |
Artificial Abrasive Type: | Corundum Abrasives |
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Grits Fepa 20# Brown Fused Alumina For Cutting Discs Abrasive
Brown Fused Alumina, also called Brown aluminum oxide, is the main raw materials to produce vitrified bonded abrasives and resin bonded abrasives like cutting discs, cutting wheels, grinding wheels, etc..
Our Brown fused alumina is grade A, with Al2O3 95%Min.
Grit sizes from F12#-220#. Popular sizes 20#, 24#,30#,36#,46#,60#, 80# etc to produce bonded abrasives.
Particle sizes distribution meets FEPA 42-1:2006.
Commodity: Brown Fused Alumina
Production Type: Tilting Furnace, Barmac Crushing, Air Blow Cleaning
Chemical Index | ||||
Al2O3 | SiO2 | Fe2O3 | TiO2 | CaO |
95%min. | 1.0% max. | 0.3% max. | 2.0%-3.0% | 0.45% Max. |
Physical Index | ||||
Color | Crystal Form | True Specific Gravity | Vickers Hardness | Melting point |
Brown | Trigonal Crystal | 3.97g/cm3 | 2100kg /mm2 | 2000 °C |
Sizes-Grit & Bulk Density (g/cm3) | ||||
F12# 1.93-1.99 | F14# 1.92-1.98 | F16# 1.91-1.97 | F20# 1.90-1.96 | F22# 1.89-1.95 |
F24# 1.88-1.94 | F30# 1.87-1.93 | F36# 1.85-1.91 | F40# 1.84-1.90 | F46# 1.83-1.89 |
F54# 1.82-1.88 | F60# 1.81-1.86 | F70# 1.80-1.84 | F80# 1.79-1.82 | F90# 1.77-1.80 |
F100# 1.75-1.78 | F120# 1.73-1.76 | F150# 1.70-1.74 | F180# 1.69-1.73 | F220# 1.68-1.72 |
Sizes-Section sand | ||||
0-1mm | 1-3mm | 3-5mm | 5-8mm | 0-25mm |
200mesh | 325mesh | Special sizes can be customized as per clients' requirements |
Supply Capacity & Application
Brown Aluminum oxide grits especially F 20#, 24#, 30#, 36#, 46#, 60#, 70#, 80# Is applicable for Bonded abrasives.
Vitrified Bonded abrasives and resin bonded abrasives. Like grinding wheels, cutting discs, etc.
What Is Difference Between Tilting Furnace Melted BFA & Fixing Furnace Melted BFA ?
Ball Milling & Barmac Process?
1. Tilting furnace process affects SiO2, SiO2 <1% by Tilting furnace, SiO2 <1.5% is by fixed furnace.
2. Barmac affects the density, the grain shape is rounder & the density is greater than ball milling
3. The Tilting furnace made BFA has high Al2O3 content
4. The corundum has good toughness & more suitable for abrasive products by dumping furnace process
The difference between F-grit & P-grit Abrasive grains:
F-grit is more suitable for bonded abrasive tools.
P-grit is more suitable for coated abrasive tools. It is with a closer tolerance size distribution, lower density, and better self-sharpening ability than non-P-grit abrasives, which means that they offer a more consistent 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.
Main Features of Brown Fused Alumina
Main Applications of Brown Fused Alumina