Grades of iron ore
Based on their iron content, iron ores are classified as following:
1. High-grade with more than 65% iron content.
2. Medium-grade with iron content between 65%-62%.
3. Low-grade with less than 62% iron content.
A STANDARD IRON ORE FINES SPECIFICATIONS
CHEMICAL COMPOSITION GUARANTEED (PERCENTAGE BY WEIGHT)
FE 63.5% MIN REJECTION BELOW 62.5%.
SIO2 3.50% MAX
Al2O3 3.50% MAX
S 0.04% MAX
P 0.06% MAX
PHYSICAL SPECIFICATION
BELOW 10MM 95% MIN
ABOVE 10MM 5% MAX
BELOW 0.15MM 25 MAX