Ferro alloy
Silicon Metal 421 441 Minerals Metallurgy
The classification of metallic silicon is usually based on the content of iron, aluminum and calcium. According to the content of Fe, AL and CA in silicon metal, silicon metal can be divided into 5...
DESCRIPTION
The classification of metallic silicon is usually based on the content of iron, aluminum and calcium. According to the content of Fe, AL and CA in silicon metal, silicon metal can be divided into 553,441,411,421,3303,3305,2202,2502,1501,1101 and so on.
| Grade | Chemical composition(%) | ||||
| Si | Fe | Al | Ca | P | |
| > | ≤ | ||||
| 1515 | 99.6% | 0.15 | – | 0.015 | 0.004 |
| 2202 | 99.5% | 0.2 | 0.2 | 0.02 | 0.004 |
| 2203 | 99.5% | 0.2 | 0.2 | 0.03 | 0.004 |
| 2503 | 99.5% | 0.2 | – | 0.03 | 0.004 |
| 3103 | 99.4% | 0.3 | 0.1 | 0.03 | 0.005 |
| 3303 | 99.3% | 0.3 | 0.3 | 0.03 | 0.005 |
| 411 | 99.2% | 0.4 | 0.04-0.08 | 0.1 | – |
| 421 | 99.2% | 0.4 | 0.1-0.15 | 0.1 | – |
| 441 | 99.0% | 0.4 | 0.4 | 0.1 | – |
| 553 | 98.5% | 0.5 | 0.5 | 0.3 | – |
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