The silicon metal is smelted by quartz and coke in the electric heating furnace. The content of the principal component silicon is about 98% . In recent years, 99.99% of the SI content is also included in the silicon metal. The other impurities are iron, aluminum, calcium and so on.
The classification of metallic silicon is usually based on the content of iron, aluminum and calcium. According to the content of Fe, AL and CA in silicon metal, silicon metal can be divided into 553,441,411,421,3303,3305,2202,2502,1501,1101 and so on. In industry, metallic silicon is usually made from carbon silicon dioxide in an electric furnace. Chemical equation: Silicon from SIO2 + 2C → SI + 2CO is 97-98% pure silicon, called metallic silicon. After melting and recrystallization, 99.7 ~ 99.8% silicon metal was obtained by removing impurities with acid.
Silicon Metal is available as disc, granules, ingot, pellets, pieces, powder , rod, sputtering target, wire, and in numerous other forms and custom shapes. Ultra high purity and high purity forms also include metal powder.
Specifications :
Grade
Chemical Element (%)
Si
Fe
Al
Ca
553
98.5%min
0.5%max
0.5%max
0.3%max
441
99%min
0.4%max
0.4%max
0.1%max
3303
99%min
0.3%max
0.3%max
0.03%max
2202
99%min
0.2%max
0.2%max
0.02%max
1101
99%min
0.1%max
0.1%max
0.01%max
Application :
1) Widely applied to refractory material and power metallurgy industry to improve the heat resistance, wear resistance and oxidation resistance.
2) In the chemical line of organic silicon, industrial silicon powder is basic raw material that high polymer of organic silicon formatting.
3) Industrial silicon powder is sublimated into monocrystalline silicon, which is widely used in highttech field as an essential raw material for integrated circuit and electronic element.
Product & factory shows :
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