Industrial silicon, also known as metallic silicon or crystalline silicon, is mainly used as an additive for non-ferrous alloys. According to the content of iron, aluminum, and calcium in metallic silicon, it can be divided into different grades such as 553, 441, 411, 421, 3303, 3305, 2202, 2502, 1501, 1101, etc.
Silicon Metal all kinds of Indicator | |||||
Spec | Si%min | Fe%max | Al%max | Ca%max | Size |
553 | ≥98.5 | ≤0.5 | ≤0.5 | ≤0.3 | 10-100mm |
551 | ≥98.5 | ≤0.5 | ≤0.5 | ≤0.1 | 10-100mm |
441 | ≥99 | ≤0.4 | ≤0.4 | ≤0.1 | 10-100mm |
421 | ≥99 | ≤0.4 | ≤0.2 | ≤0.1 | 10-100mm |
4402 | ≥99 | ≤0.4 | ≤0.4 | ≤0.02 | 10-100mm |
3303 | ≥99 | ≤0.3 | ≤0.3 | ≤0.03 | 10-100mm |
3302 | ≥99 | ≤0.4 | ≤0.3 | ≤0.02 | 10-100mm |
2502 | ≥99 | ≤0.25 | ≤0.25 | ≤0.02 | 10-100mm |
2202 | ≥99 | ≤0.2 | ≤0.2 | ≤0.02 | 10-100mm |