Chemical Element

Maximum

Minimum

Fe (Iron)

65.50 %

63.50 %

Al2O3

2.00 %

1.40 %

SiO2

3.50 %

2.08 %

P (Phosphorus)

0.08 %

0.051 %

K2O

0.08 %

0.02 %

CaO

0.02 %

0.12 %

MgO

0.03 %

0.022 %

Na2O

0.015 %

0.007 %

Sn (estanho)

0.01 %

0.001 %

TiO2

0.08 %

0.03%

Mn (Manganese)

0.15 %

0.08 %

PF (L.O.I.)

1.22 %

0.70 %

S (sulphur)

0.007 %

0.005 %

Cr (chromium)

0.005 %

0.001 %

Free moisture loss at 105 C

8.00 %

5.00 %

Physical Characteristics

10.0 mm – 5.0 mm

10 % Max.

4.9 mm – 3.00 mm

60 % Min.

2.9 mm – 0.15 mm

30 % Min.