brown fused alumina and white fused alumina

- Aug 03, 2018 -


 brown fused alumina and white fused alumina 





Similarities

Both basic mineral: α-Al2O3
Both PH Value: Neutral
Both Max.usable temperature in air is 1900 Celsius degree, decomposition point is 2250 Celsius degree.
Both main chemical composition of finished products are: Al2O3
Both main applications are: in refractory and abrasives products.

Both Mohs hardness are: 9.0




Both Mohs hardness are: 9.0

Differences

BFA bulk density is (1.53~1.99g/cm3) and true density (3.90g/cm3). While WFA bulk density (1.75~1.95g/cm3) and true density (3.95~3.97g/cm3).
Main raw material of BFA is bauxite, and main raw material of WFA is calcined alumina powder.
BFA has Al2O3 content of 95% Min., WFA has Al2O3 Content of 99% Min.
BFA has refractory temperature 1850 Celsius degree, WFA has refractory temperature 2100 Celsius degree.
Although their Mohs hardness is 9.0,WFA is even harder than BFA, and BFA is more flexible than WFA.