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Iron ore concentrate
Parameter
Specification
Fe (T)
>63%
Moisture
<10%
SiO2
<3%
Al2O3
<1.8%
CaO
<1%
MgO
<0.5%
Phos
<0.04%
Sulphur
<0.02%
Fineness
90% passing 200mess
Pellets
Chemical Quality
Parameter
Specification
Fe
>64% min
SiO2
<2.5%
Al2 O3
<0.60%
P
<0.04%
S
<0.02%
Moisture (free moisture loss at 105 degree centigrade)
2% max (fair season) 4% max (monsoon)
Physical Quality
Screen Analysis
Specification
+14mm
<5%
-14mm ,+7mm
>85%
-7mm
<5%
Tumbler test (ASTM)
Tumble index (+6.35 mm)
>94.00 %
Abrasion index (+ 0.6 mm)
<5.00 %
Metallurgical Properties
Parameter
Specification
Swelling (JIS)
<20%
Compression Strength
200-250 KG
Porposity
>20 %
Reducibility (JIS)
>60%
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