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Silicon metal, also known as crystalline silicon or industrial silicon, is mainly used as an additive for non-ferrous base Alloys.Silicon metal is a product smelted by quartz and coke in the electric furnace. The content of silicon element is about 98%.The remaining impurities are iron, aluminum, calcium, etc.According to the content of iron, aluminum and calcium in silicon metal, silicon metal can be divided into553、441、3303、2202、1101 and other different brands
| Product grades | Chemical composition (100%) | ||||
| Si content | Impurities(100%) | ||||
| 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 | ≤0.004% |
| 411 | 99.4 | 0.4 | 0.1 | 0.1 | ≤0.004% |
| 421 | 99.3 | 0.4 | 0.2 | 0.1 | ≤0.004% |
| 441 | 99.1 | 0.4 | 0.4 | 0.1 | ≤0.004% |
| 551 | 98.9 | 0.5 | 0.5 | 0.1 | ≤0.004% |
| 553 | 98.7 | 0.5 | 0.5 | 0.3 | ≤0.004% |
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