Brown fused alumina F80 conscience supplier
China [CN] Brown fused alumina F80 conscience supplier
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
|
Brown Corundum 80# /BFA Manufacture |
|
|
Size |
80# |
|
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
|
Brown Corundum 80# /BFA Manufacture |
|
|
Sieve |
% |
|
+300um |
0 |
|
+212um |
≤25 |
|
+212um |
≥40 |
|
+212um+180um |
≥65 |
|
-150um |
<3 |
The usages
|
Sandblasting brown corundum |
|
Freedom grinding - abrasive materials |
|
Resin Abrasives - Abrasive |
|
Coated Abrasives |
|
Corundum functional fillers |
|
Abrasion resistance ground |
|
Precision casting |
|
Refractory material |
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 |
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