100# Mesh Brown Alumina /BFA Grit For Making Coated Abrasives
Brown Fused Alumina is fused in the electric-arc furnace under the high temperature of above 2250°C with high quality bauxite as raw material and matched by the carbon material and scrap iron .Then, it was crushed by autogenous mill, removed the iron through magnetic separation, screened to variety granularity.
Physical performance
100# Mesh Brown Alumina /BFA Grit For Making Coated Abrasives |
|
Size |
100# |
Crystals |
Trigonal |
Melting point |
2250℃ |
highest used temperature |
1900℃ |
Bulk density |
1.53-1.99g/cm3 |
Specific Gravity |
3.95-3.97g/cm3 |
Mohs Hardness |
≥9.0 |
Ph Value |
7.0 |
Magnetic materials contents |
0.3%max |
Coefficient of linear expansion |
7-9(0 – 1600°C) |
Refractoriness |
2100℃ |
Chemical composition
Grade |
Chemical Composition(%) |
|||
Al2O3 |
Fe2O3 |
SiO2 |
TiO2 |
|
A |
92-96 |
0.2-1.0 |
1.0-3.0 |
1.5-3.8 |
B |
85-90 |
6-10 |
1.5-4 |
2-4 |
C |
70-80 |
8-15 |
2-5 |
3-5 |
D |
55-65 |
12-20 |
15-25 |
4-6 |
Size distribution
100# Mesh Brown Alumina /BFA Grit For Making Coated Abrasives |
|
Sieve |
% |
+212um |
0 |
+150um |
≤20 |
+125um |
≥40 |
+125um+106um |
≥65 |
-71um |
<3 |
Available sizes
Fraction |
0-1mm 1-3mm 3-5mm 5-8mm... |
|
Fine |
-100mesh -200mesh -320mesh... |
|
Grains |
8# 10# 12# 14# 16#20# 22# 24# 30# 36# 46# 54# 60# 80# 100# 120# 150# 180# 220# |
|
Micro powder (Standard) |
W |
W63 W50 W40 W28 W20 W14 W10 W7 W5 W3.5 W2.5 W1.5 W0.5 |
|
JIS |
240# 280# 320# 360# 400# 500# 600# 700# 800# 1000# 1200# 1500# 2000# 2500# 3000# 4000# 6000# 8000# |
|
FEPA |
F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000 |
Our advantages:
1. We supply abrasive products since 1999.
2. Our products have stable quality.
3.Our products have competitive price.
After Sales Service:
1).We are very glad that if the customers give us some suggestion about the price and products.
2).If you have any question, please tell us by e-mail or telephone at the first time. We will deal with them for you in time.