Brown fused alumina
Code: RWA
It is electrically fused basis high temp. calcined bauxite , Coal , Iron. Present brown and features high hardness and toughness. The abrasive tools made of it are suitable for the grinding of carbon steel, cast iron, foundry parts, hard bronze and so on. Additionally, It is also used as refractory materials, chemical additive, grinding and lapping material ,precision foundry and anti-sliding materials. some special requirements could be produced include high bulk density , special particle size
Chemical Composition:
Code | Particle size range | Chemical composition (%) | ||
AL2O3 % | TiO2 % | CaO % | ||
F P | F4-F80 (P4-P80) | 95.00-97.50 | 1.5--3.8 | ≤0.30 |
F90-F150 (P90-P150) | 94.00-97.50 | |||
F180-F220 | 93.00-97.50 | |||
F240-F1500 (P240-P3000) | ≥92.00 | |||
Physical property:
Basic minerals | Crystal size(u m) | True density(ɡ/cm³) | Bulk density(ɡ/cm³) | Hardness㎏/mm² |
Alpha-Al2O3 | 400-800 | ≥3.90 | 1.40-1.95 | 1800-2200 |
Bulk Density
Grit size | Bulk density(ɡ/cm³) | Grit size | Bulk density(ɡ/cm³) |
F24 | 1.8-1.95 | F80 | 1.61-1.71 |
F30 | 1.77-1.90 | F90 | 1.59-1.71 |
F36 | 1.75-1.90 | F100 | 1.57-1.68 |
F40 | 1.73-1.86 | F120 | 1.54-1.68 |
F46 | 1.70-1.84 | F150 | 1.50-1.65 |
F54 | 1.68-1.82 | F180 | 1.48-1.62 |
F60 | 1.66-1.80 | F220 | 1.45-1.55 |
F70 | 1.63-1.76 |
Grain Shape
Code | Shape | Process machinery |
RWAA | Angular | Rolling Machine & Ball milling |
RWAB | Blocky | Ball milling & shape treatment machine |
Standard： FEAP- F (Vitrified and Resinoid abrasives), FEPA- P (Coated abrasives), JIS standard.
Grit : F12 – F220(Macro). F240-F2000 (Micropowder)
P12-220, P240-P2500
JIS12--8000
For refractory: 0-1mm, 1-3mm, 3-5mm, 0-10mm, 16-35mesh, -70F, -100F, -325mesh, Dust
Other sizes are alsoavailable on request.
