(1/4″ x 1 3/4″)(6.35mm x 44.45mm)

Chemical Analysis

Dry basis (105°C) EXPECTED MAXIMUM MINIMUM
Fe 64.00   62
SiO2 2.00 2.90  
Al2O3 0.80 1.50  
L.O.I. 5.50 6.80  
P 0.100 0.14  
MnO 0.220    
CaO 0.014    
MgO 0.020    
S 0.010 0.1  
TiO2 0.100    
K2O 0.002    
Na2O 0.002    

Natural Basis

Nat. Fe 62.27    
H2O(*) 2.50 7.5  

Physical Composition (natural iron square ISO screens)

+2″(+50.8) mm 1.0 7.0  
+1 3/4″(+44.45 mm) 6.00    
+1″(+25.4 mm) 40.00    
+1/2″ (+12.7 mm) 90.00    
+1/4″ (+6.35 mm) 97.00    
-1/4″ (-6.35 mm) 4.00 15.00  

*Yearly average