BFA Macro Bonded
BFA Macro Bonded
Descriptions
Kowa’s Macro range for Bonded abrasive application is a regular brown fused aluminum oxide abrasive with medium titania, blocky shape and high density. To get the kind of grains, we specially process the ingots, separate the magnetic material, and sieve the grains carefully to get a complete range of grit sizes. It is used for making bonded abrasive products where the tough, strong aluminum oxide is required.
Applications
This can match various applications like producing all kinds of vitrified bonded grinding wheels, resign bonded grinding wheels and cut-off wheels.
The tough, strong aluminum oxide characteristic also enable this abrasive the used for pressure blasting and surface finish.
Typical Chemical Analysis(F12-F46):
Al2O3 95.0-94.5 %
TiO2 3.0-3.5%
SiO2 ≤ 1%
Fe2O3 ≤ 0.2%
Physical Properties
Colour
Shape
Crystal Form
Specific Gravity
Hardness
Magnetic Material
Brown
Blocky, edge sharp Alpha alumina trigonal system 3.92 2090 Knoop scale, 9.0 Mohs scale 0.0076%
Grain Sizes Available (F):
12, 14, 16, 20, 22, 24, 30, 36, 40, 46, 54, 60, 70, 80, 90, 100, 120, 150, 180, 220, 240
Typical Bulk Density
| Grit(F) | g/cc | Grit(F) | g/cc | Grit(F) | g/cc | Grit(F) | g/cc |
|---|---|---|---|---|---|---|---|
| 12 | 2.05 | 24 | 1.93 | 54 | 1.8 | 100 | 1.67 |
| 14 | 2.03 | 30 | 1.91 | 60 | 1.78 | 120 | 1.66 |
| 16 | 1.99 | 36 | 1.88 | 70 | 1.75 | 150 | 1.63 |
| 20 | 1.97 | 40 | 1.84 | 80 | 1.74 | 180 | 1.61 |
| 22 | 1.95 | 46 | 1.82 | 90 | 1.72 | 220 | 1.6 |
Grain Sizes Available (F)
Upon ANSI B74.12-2001, FEPA-Standard 42-1:2006 or ISO 8486-1.
packing
20 Kg/25Kg Paper bags, 50 Lbs Paper bags, 2000lbs / 1 MT Jumbo Bags.
