Grit material specifications
(a) indicative chemical analysis
Fe total 30 - 35%
Feo 34 - 41%
Fe203 2 - 7%
Si02 32 - 42%
Cao 3 - 6%
Mgo 3 - 6%
Cr203 2 - 3%
Al203 3 - 6%
Ni 0.10 - 0.20%
Specificgravity. 3 - 3.5 gr/ cm3 bulk density
1.5 - 2 gr/ cm3
(b) indicative granulometry
Mm %
+ 2, 3 4 - 8
-2, 3 + 1, 7 7 - 12
-1, 7 + 1, 18 16 - 25
-1, 18 + 0, 85 16 - 25
-0, 85 + 0, 60 16 - 25
-0, 60 + 0, 425 9 - 15
-0, 425 5 - 9
Moisture: upto 10%
