Ferro alloy
Aluminium Alloy Melting Industrial Silicon Metal
Silicon metal is usually classified according to the content of its three main impurities such as iron, aluminum and calcium. Based on the content of iron, aluminum and calcium, silicon metal can b...
DESCRIPTION
Silicon metal is usually classified according to the content of its three main impurities such as iron, aluminum and calcium. Based on the content of iron, aluminum and calcium, silicon metal can be divided into different grades such as 553, 441, 421, 3303, and 2202.
| Grade | Composition | ||||
| Si Content | Impurities(%) | ||||
| Fe | Al | Ca | p | ||
| 1501 | 99.69 | 0.15 | 0.15 | 0.01 | ≤0.004% |
| 1502 | 99.68 | 0.15 | 0.15 | 0.02 | ≤0.004% |
| 1101 | 99.79 | 0.1 | 0.1 | 0.01 | ≤0.004% |
| 2202 | 99.58 | 0.2 | 0.2 | 0.02 | ≤0.004% |
| 2502 | 99.48 | 0.25 | 0.25 | 0.02 | ≤0.004% |
| 3303 | 99.37 | 0.3 | 0.3 | 0.03 | ≤0.005% |
| 411 | 99.4 | 0.4 | 0.1 | 0.1 | ≤0.005% |
| 421 | 99.3 | 0.4 | 0.2 | 0.1 | |
| 441 | 99.1 | 0.4 | 0.4 | 0.1 | |
| 551 | 98.9 | 0.5 | 0.5 | 0.1 | |
| 553 | 98.7 | 0.5 | 0.5 | 0.3 | |
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