Ferro alloy
Silicon Metal Lump for Aluminium Making
All silicon metal shares a common origin: Quartz (SiO2). Quartz is reduced to silicon (Si) in a high temperature melting process using carbon and quartz in an electric arc furnace.The main componen...
DESCRIPTION
All silicon metal shares a common origin: Quartz (SiO2). Quartz is reduced to silicon (Si) in a high temperature melting process using carbon and quartz in an electric arc furnace.The main component of silicon is about 98% (in recent years, the purity can reach above 99.99%), other impurities are:Ferrum,Aluminum, Calcium.
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Grade
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Composition
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|||
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Si
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Impurities(%)
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|||
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Fe
|
Al
|
Ca
|
||
|
≦
|
||||
|
1101
|
99.79
|
0.1
|
0.1
|
0.01
|
|
1501
|
99.69
|
0.15
|
0.15
|
0.01
|
|
2202
|
99.58
|
0.2
|
0.2
|
0.02
|
|
2502
|
99.48
|
0.25
|
0.25
|
0.02
|
|
3303
|
99.37
|
0.3
|
0.3
|
0.03
|
|
411
|
99.4
|
0.4
|
0.1
|
0.1
|
|
421
|
99.3
|
0.4
|
0.2
|
0.1
|
|
441
|
99.1
|
0.4
|
0.4
|
0.1
|
|
553
|
98.7
|
0.5
|
0.5
|
0.3
|
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