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Ferro silicon 72 is made by melting silica, iron ore and coke together at very high temperatures (1,600–1,800°C) in electric arc furnaces.
Ferro silicon 72 is made by melting silica, iron ore and coke together at very high temperatures (1,600–1,800°C) in electric arc furnaces. This process needs to be controlled exactly to get the right amount of silicon.Producing ferro silicon 72 takes more time and needs to be done in shorter cycles. It also needs to be done in a way that strictly manages carbon to avoid other substances. This is because too much carbon can stop silicon from working well when it is used to remove oxygen.
Model | Chemical Composition (%) | |||||
Si | Mn | Al | C | S | P | |
FeSi72 | 72.0 | 0.4 | 2.0 | ≤0.2 | ≤0.04 | ≤0.02 |
65.0-72.0 | ≤0.6 | ≤0.5 | -- | ≤0.04 | ≤0.02 |
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