Brown Fused Alumina
Colour: Brown
Grain shape: Angular
Hardness: 9.0 mohs
Melting point: 2250℃
Bulk density: 1.50-2.10g/cm³
For abrasives: FEPA F12-F1200, FEPA P12-P2500
For refractory: 0-1mm, 1-3mm, 3-5mm…-200mesh, -325mesh…
Chemistries: AL-96.5, AL-95, AL-92, AL-90
SiO2: Vary from 0.8% -1.5%
*Custom Sizes & Chemistry are available upon request.
DESCRIPTION
Brown Fused Alumina（also named as Brown Fused Aluminum Oxide) is produced from high quality Bauxite, Coal, Iron chip by being fused in an electric arc furnace at high temperature. It’s a tough, hard material (Mohs hardness 9) with strong self-sharpening, high strength, excellent wear and corrosion resistance; it has good thermal conductivity and outstanding chemical stability at very high temperature, which makes it an ideal abrasive & refractory materials used in many applications.
We manufacture BFA in tilting furnace or fixed furnace, and tilting furnace BFA has higher Al2O3 content, lower impurities and high-performance. BFA can be crushed and milled by barmac mill, ball mill or roller mill, and BFA milled by Barmac equipment is granted more round shape and higher bulk density. Refractory products made of it have higher density and strength, and also less opportunity to have cracks.
DATA SHEET
Physical Properties:
Color: Brown or Grey
Mohs Hardness: 9.0
Micro Hardness: 1800-2200kg/mm²
Melting Point: 2250℃
Bulk Density: 1.50-2.10g/cm³
Ture Density: 3.95 g/cm³ Min
|
Type &Grade |
AI2O3(%) |
SiO2(%) |
Fe2O3(%) |
TiO2(%) |
CAO(%) |
||
|
A-F |
|
AL-96 |
≥96.50 |
≤0.80 |
≤0.15 |
≤3.50 |
≤0.25 |
|
AL-95 |
≥95.00 |
≤1.50 |
≤0.30 |
≤3.80 |
≤0.40 |
||
|
AL-90 |
≥90.00 |
≤3.00 |
≤0.45 |
≤4.00 |
≤0.60 |
||
|
F240-F1200 |
≥93.50 |
≤1.50 |
≤0.30 |
≤3.80 |
≤0.40 |
||
|
A-P |
P12-P220 |
AL-95 |
≥95.00 |
≤1.50 |
≤0.30 |
≤3.80 |
≤0.40 |
|
P240-P2500 |
≥93.50 |
≤1.50 |
≤0.30 |
≤3.80 |
≤0.40 |
||
|
A-R |
0-1MM, |
AL-96 |
≥96.00 |
≤1.00 |
≤0.15 |
≤3.80 |
≤0.40 |
|
AL-95 |
≥95.00 |
≤1.50 |
≤0.30 |
≤3.80 |
≤0.40 |
||
|
AL-92 |
≥92.00 |
≤2.50 |
≤0.40 |
≤4.00 |
≤0.60 |
||
|
AL-90 |
≥90.00 |
≤3.00 |
≤0.60 |
≤4.00 |
≤0.80 |
||
|
-200Mesh -325Mesh... |
≥94.50 |
≤1.50 |
≤0.30 |
≤3.80 |
≤0.40 |
||
PHYSICAL INDEX SHEET
|
GRIT |
AVERAGE GRAIN SIZE (um) |
BULK DENSITY |
MEGNETIC CONTENT(%) |
GRIT |
AVERAGE GRAIN SIZE (um) |
BULK DENSITY |
MEGNETIC CONTENT(%) |
|
F12 |
2000 – 1700 |
1.90-2.10 |
0.0250 |
F54 |
355 – 300 |
1.73-1.82 |
0.0200 |
|
F14 |
1700 – 1400 |
1.89-2.05 |
0.0250 |
F60 |
300 – 250 |
1.71-1.81 |
0.0200 |
|
F16 |
1400 – 1180 |
1.89-2.02 |
0.0250 |
F70 |
250 – 212 |
1.66-1.76 |
0.0200 |
|
F20 |
1180 – 1000 |
1.89-1.99 |
0.0250 |
F80 |
212 – 180 |
1.64-1.74 |
0.0150 |
|
F22 |
1000 – 850 |
1.88-1.98 |
0.0250 |
F90 |
180 – 150 |
1.63-1.72 |
0.0150 |
|
F24 |
850 – 710 |
1.87-1.97 |
0.0250 |
F100 |
150 – 125 |
1.63-1.71 |
0.0150 |
|
F30 |
710 – 600 |
1.83-1.93 |
0.0250 |
F120 |
125 – 106 |
1.60-1.70 |
0.0150 |
|
F36 |
600 – 500 |
1.82-1.92 |
0.0250 |
F150 |
150 – 75 |
1.58-1.68 |
0.0120 |
|
F40 |
500 – 425 |
1.78-1.88 |
0.0200 |
F180 |
90 – 63 |
1.58-1.68 |
0.0120 |
|
F46 |
425 – 355 |
1.73-1.83 |
0.0200 |
F220 |
75 – 53 |
1.58-1.65 |
0.0100 |
Microgrits F230~F1200 Specifications (FEPA 42-2:2006)
|
GRIT |
Standard Value for FEPA Micro F series |
||
|
Ds3% Value Max.. |
D50% Value |
D94% Value Min. |
|
|
F230 |
82 |
53.0 ± 3 |
34 |
|
F240 |
70 |
44.5 ± 2 |
28 |
|
F280 |
59 |
36.5 ± 1.5 |
22 |
|
F320 |
49 |
29.2 ± 1.5 |
16.5 |
|
F360 |
40 |
22.8 ± 1.5 |
12 |
|
F400 |
32 |
17.3 ± 1 |
8 |
|
F500 |
25 |
12.8 ± 1 |
5 |
|
F600 |
19 |
9.3 ± 1 |
3 |
|
F800 |
14 |
6.5 ± 1 |
2 |
|
F1000 |
10 |
4.5 ± 0.8 |
1 |
|
F1200 |
7 |
3.0 ± 0.5 |
1(at 80%) |
AVAILABLE GRIT SIZES
For Bonded Abrasives Application:
FEPA F
Macro: F12, F24, F30, F36, F40, F46, F54, F60, F80, F100, F120, F150, F180, F220
Micro: F240, F280, F320, F360, F400, F500, F600, F800, F1000, F1200
For Coated Abrasives Application:
FEPA P
Macro: P24, P30, P36, P40, P50, P60, P80, P100, P120, P150, P180, P220
Micro: P240, P280, P320, P360, P400, P500, P600, P800, P1000, P1200, P1500, P2000, P2500
JIS
JIS240, JIS280, JIS320, JIS360, JIS400, JIS500, JIS600, JIS700, JIS800, JIS1000, JIS1200, JIS1500, JIS2000, JIS2500, JIS3000, JIS4000, JIS6000, JIS8000
For Refractories Application:
Macro sizes: 0-1mm, 0.5-1mm, 1-2mm, 1-3mm, 2-3mm, 3-5mm, 5-8mm, 0-10mm, 0-25mm...
Fine powder:
0-0.1 mm, 0-0.2mm, 0-0.35mm, 0-0.5mm, 0.1-0.5mm, 0.2-0.5mm.
-200mesh, -240mesh, -325mesh..
Noted: Custom sizes and shapes are also available upon request.
PACKAGING
Standard Packaging:
- Big bags (1000kgs , 1250kgs, 1350kgs) with or without pallets;
- 20 or 25kg plastic, or paper bags, with or without pallets.
*Custom Packaging is available upon request.
APPLICATION
-Bonded abrasives (grinding wheels, cutting discs ...)
-Coated abrasives (sanding paper, sanding belt, surface preparation...)
-Lapping, polishing, sandblasting media
-Anti-skid flooring,
-Brake and friction linings
--Shaped & unshaped refractory products used in fire-proof, precision casting, steel , foundry industries.
--Glass , advanced ceramics products & refractory cement industry
--Other applications: like petro-chemicals, laminates and other high-level furnace refractories, and hundreds of other application.
YOUR INQUIRY
If you have any questions ,Please feel free to contact us.