Silicon metal and ferrosilicon are both silicon-bearing industrial materials, but they are not interchangeable. Silicon metal is purchased as elemental silicon with controlled metallic impurities. Ferrosilicon is an iron-silicon alloy used widely in steelmaking and foundries.
| Question | Silicon metal | Ferrosilicon |
|---|---|---|
| Core material | Silicon with controlled Fe, Al and Ca | Iron-silicon alloy |
| Common request | 553, 441, 3303, 2202 | FeSi 75, FeSi 72, FeSi 65 |
| Typical use | Aluminium alloying and chemical feedstock | Deoxidation and alloying in steel or cast iron |
Before asking for a price, state the chemical limits, size range, quantity, packing and destination. The grade name alone may not capture every production requirement.
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