Ferro Silicon
Designation
Chemical Composition ( % )
Si
Al
Ca
Mn
Cr
 P
S
C
Min
Max
FeSi75A11.0 - A
75.0
1.00
1.00
0.40
0.30
0.035
0.02
0.10
FeSi75A11.5 - B
75.0
1.50
1.00
0.40
0.30
0.035
0.02
0.10
FeSi75A12.0 - C
75.0
2.00
1.00
0.50
0.30
0.035
0.02
0.10
FeSi75 - C
72.0
-
-
0.50
0.30
0.04
0.02
0.20

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 


 
 
 
 
Ferro Manganese Silicon
Designation
Chemical Composition ( % )
Mn
Si
C
P
S
I
II
I
II
Min
Max
FeMn60Si30 - A
60.0
30.0
0.10
0.555
0.065
0.020
0.030
FeMn62Si28 - B
61.5
28.5
0.10
0.555
0.065
0.020
0.030
FeMn70Si20 - C
70.0
20.0
1.20
0.10
0.15
0.02
0.03
FeMn65Si17 - D
65.0
17.0
1.80
0.10
0.15
0.02
0.03
FeMn60Si14 - E
60.0
14.0
2.80
0.15
0.20
0.03

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 


 
 
 
High Carbon Ferro Manganese
Designation
Chemical Composition ( % )
Mn
C
Si
P
S
I
II
I
II
Min
Max
FeMn65C 7.0 - A
65.0
7.0
2.0
3.5
0.2
0.35
0.03
FeMn70C 7.0 - B
70.0
7.0
1.5
2.5
0.2
0.33
0.03
FeMn73C 7.3 - C
73.0
7.3
1.2
1.5
0.2
0.25
0.03
FeMn75C 7.3 - D
75.0
7.3
1.2
1.5
0.2
0.25
 0.2

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 


 
 
 
 
 
 
Ferro Silicon Smoke
Designation
Chemical Composition ( % )
SiO2
Al2O3
Fe2O3
CaO
 MgO
C
L. O. I.
Min
Max
Ferro Silicon Smoke
90.5
1.50
1.50
0.80
0.30
1.00
6.00
Physical Properties
Concentration of the volcanic Ash
White Ness
Size ( um )
Specific surface area ( 

mz / g )
0.22
90 %
50 %
0~ 1   90% min
18.50.00

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Silicon Metal 
Chemical Composition ( % )
Si
Fe
Al
Ca
Min
Max
99.00
0.40
0.40
0.10

( Size 10 - 100 mm , 90%min ).
 
 
 
 
 
 
 
 
 
 
 
 
 


 
 
 
 
Electrolytic Manganese Metal 
Chemical Composition ( % )
Mn
P
S
C
Fe
Min
Max
99.70
0.001
0.05
0.04
0.01

 
 
 
 
 
 

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