Ferro alloy
Metallurgical Silicon Lump 2202 For Steelmaking
The main use of metallic silicon is as an additive to non-ferrous based alloys. The properties of metallic silicon are similar to those of antimony, lead and tin, and have semiconducting properties...
DESCRIPTION
The main use of metallic silicon is as an additive to non-ferrous based alloys. The properties of metallic silicon are similar to those of antimony, lead and tin, and have semiconducting properties; they are insoluble in acid at room temperature and are easily soluble in alkali. Silicon metal is usually classified according to the content of Si, Fe, Al, Ca. Main types of silicon metal are 553, 441, 411, 421, 3303, 3305, 2202, 2502, 1501, 1101 etc.
| Chemical Composition(%) | ||||
| Grade/spec | Si | Fe | Al | Ca |
| 553 | 98.5%min | 0.5%max | 0.5%max | 0.3%max |
| 441 | 99.0%min | 0.4%max | 0.4%max | 0.1%max |
| 3303 | 99.0%min | 0.3%max | 0.3%max | 0.03%max |
| 2202 | 99.0%min | 0.2%max | 0.2%max | 0.02%max |
| 1101 | 99.0%min | 0.1%max | 0.1%max | 0.01% |
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