Chemical
Composition
Reject
Total
Iron (Fe)%
65.0 min below 63.5
Aluminium
Trioxide (Al2O3)% 1.0-2.0 max
above 2.5
Calcium
Oxide (CaO) % 0.8-1.64 max above
1.8
Magnesium
Oxide (MgO) % 1.5-5.80 max above 5.8
Manganium
Dioxide (MnO2) % 0.6-0.7 max above 0.8
Chromium
Oxide (Cr2O3)%
0.05-0.20 max above 0.20
Sodium Oxide (Na2O) %
0.03-2.75 max above 2.75
Potassium Oxide (K2O) %
below 0.05 above 0.3
Silicone Dioxide (SiO2) % 0.5-4.0
max above 5.0
Titanium Dioxide (TiO2)% 1-2 max
above 2.0
Sulfur
(S) %
0.005% max.
above 0.01
Phosphorous
(P) %
0.010% max above 0.015