Ferro alloy
FerroSilicon FeSi Alloys
FerroSilicon (FeSi) is a type of ferroalloy that is made up of iron and silicon, with silicon content typically ranging from 15% to 90%. It is commonly used as an additive in the production of stee...
DESCRIPTION
FerroSilicon (FeSi) is a type of ferroalloy that is made up of iron and silicon, with silicon content typically ranging from 15% to 90%. It is commonly used as an additive in the production of steel and other alloys, as well as in the manufacturing of silicon wafers used in the semiconductor industry.
FerroSilicon is produced by reducing quartz (silicon dioxide) with coke or coal in a submerged arc furnace, resulting in the formation of silicon and iron. The silicon and iron are then mixed together in specific ratios to create the desired grade of FerroSilicon.
Different grades of FerroSilicon are available based on their silicon content, with commonly used grades including FerroSilicon 75%, FerroSilicon 72%, and FerroSilicon 65%. Each grade has slightly different properties and is used in different applications.
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Grade
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≥
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(Chemical composition)≤ %
|
||||||
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|
Si
|
Al
|
Ca
|
Mn
|
Cr
|
P
|
S
|
C
|
|
FeSi75
|
75
|
1.5
|
1
|
0.5
|
0.5
|
0.04
|
0.02
|
0.2
|
|
FeSi72
|
72
|
2
|
1
|
0.5
|
0.5
|
0.04
|
0.02
|
0.2
|
|
FeSi70
|
70
|
2
|
1
|
0.6
|
0.5
|
0.04
|
0.02
|
0.2
|
|
FeSi65
|
65
|
2
|
1
|
0.8
|
0.5
|
0.04
|
0.02
|
0.2
|
|
FeSi60
|
60
|
2
|
1
|
0.7
|
0.5
|
0.05
|
0.03
|
0.2
|
|
FeSi45
|
45-47
|
2
|
1
|
0.8
|
0.5
|
0.04
|
0.02
|
0.2
|
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