Items
Unit
Chemical
composition
Al2O3
%
70.00-77.00
SiO2
22.00-29.00
Fe2O3
0.1max
Na2O
0.40max
Refractoriness
1850min
Bulk density
g/cm3
3.00min
Glass phase content
5-6
3Al2O3.2SiO2 Phase
95min