White Fused Alumina/wfa Grits for Abrasive Tool
white fused alumina/wfa grits for abrasive tool
1.Product Description
White fused alumina,was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3.The white alumina produced in titling electric arc furnace has the advantage of high bulk density and low porosity and the volume stability and thermal shock resistance can be improved.
2.Chemical and physical parameters
Model: white fused alumina grits F#220 | ||||
Chemical compositions |
Physical properties |
|||
Items |
Value of specification (%) |
Items |
Property |
|
Al2O3 |
99.2min |
Color |
White |
|
SiO2 |
0.1max |
Bulk density |
1.75-1.95g/cm3 |
|
Na2O |
0.4max |
Grain density |
3.90g/cm3 min |
|
Fe2O3 |
0.1max |
hardness |
Morse hardness |
9 |
Micro hardness |
21600-22600kg/mm3 |
|||
Usage |
Polishing ,sandblasting and grinding |
content of magnetic substance |
0.0023%max |
|
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