Brown fused Alumina known as "artificial corundum" or "alumina grit". Brown fused alumina is produced from bauxite, charcoal, iron chip by being fused under high temperature in an electric arc furnace. It is characterized by high toughness and has a micro hardness of 2000-2200kg/mm2. The abrasive tools made by brown fused alumina are suitable for grinding carbon steel, normal alloy steel, malleable cast iron and hard bronze, etc. Brown fused alumina can also be used for making fine quality refractory etc.
Notes:
1) If you have special requirement for the specifications, please don't hesitate to contact us. Usually, our skills and equipments are able to meet your special requirement;
2) A wide range of sizes is available as per customer's request.
3) Besides BFA, WFA, sintered mullite and fused mullite, we also manufacture and export other refractory and abrasives materials, such as dense corundum, tabular corundum, magnesia alumina spinel and a wide range of refractory bricks. We are always ready to welcome friends home and abroad to visit our factory.
Chemical composition:
|
Grit Size
|
AL2O3
|
SIO2
|
TIO2
|
Fe2O3
|
|
|
MIN
|
MAX
|
MAX
|
MAX
|
|
0-50mm
|
94.50%
|
0.80%
|
2.23%
|
0.35%
|
|
0-1mm
|
95.50%
|
0.70%
|
2.23%
|
0.25%
|
|
1-3mm
|
95.75%
|
0.66%
|
2.18%
|
0.23%
|
|
3-5mm
|
95.90%
|
0.60%
|
2.15%
|
0.21%
|
|
5-8mm
|
96.00%
|
0.50%
|
2.10%
|
0.18%
|
