Silicon Metal
We import following material from China for our Indian and Overseas Buyer
Silicon is the most common metalloid. It is a chemical element, which has the symbol Si and atomic number 14. As the eighth most common element in the universe by mass, silicon very rarely occurs as the pure free element in nature, but is more widely distributed in dusts, planetoids and planets as various forms of silicon dioxide (silica) or silicates. On Earth, silicon is the second most abundant element (after oxygen) in the crust, making up 25.7% of the crust by mass.
Silicon has many industrial uses. Elemental silicon is the principal component of most semiconductor devices, most importantly integrated circuits or microchips. Silicon is widely used in semiconductors because it remains a semiconductor at higher temperatures than the semiconductor germanium and because its native oxide is easily grown in a furnace and forms a better semiconductor/dielectric interface than any other material.
In the form of silica and silicates, silicon forms useful glasses, cements, and ceramics. It is also a constituent of silicones, a class-name for various synthetic plastic substances made of silicon, oxygen, carbon and hydrogen, often confused with silicon itself.
| Silicon metal spec. | Chemical Analysis | |||
|---|---|---|---|---|
| Si(Min) | Fe(Max) | Al(Max) | Ca(Max) | |
| 2202 | 99.0% | 0.2% | 0.2% | 0.02% |
| 3303 | 99.0% | 0.3% | 0.3% | 0.03% |
| 441 | 99.0% | 0.4% | 0.4% | 0.1% |
| 553 | 98.5% | 0.5% | 0.5% | 0.3% |
| Fe | Al | Ca | P | Size |
| 0.02% | 0.02% | 0.02% | 15ppm | 20-60mesh |
| 0.01% | 0.01% | 0.01% | 10ppm | 60-200mesh |
| 0.2% | 0.2% | 0.02% | 20ppm | 0.20-1mm |
| 0.2% | 0.2% | 0.02% | 0.25-5mm |