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Metallic Silicon 851
Metallic Silicon 851
Metallic Silicon 851

Silicon Metal

Metal silicon is mainly used as an additive for non-ferrous alloys.
Metal silicon, also known as crystalline silicon or industrial silicon
​​​​​​​The main component silicon content is about 98%
The content of iron and calcium was 0.8% and 0.1%, respectively.
Metal silicon particle size is 10-50mm , 10-80mm , 10-100mm or other sizes as customer’s request.
Product Description
The main use of metallic silicon is as an additive in non-ferrous alloys. Silicon metal is a product produced by smelting quartz and coke in an electric heating furnace.


Grade  Chemical Composition(%)
Si Fe Al Ca
>= <= <= <=
3303 99.5 0.3 0.3 0. 03
311 99.5 0.3 0.1 0. 1
441 99 0.4 0.4 0.1
551 99 0.5 0.5 0.1
553 98.5 0.5 0.5 0.3
851 98 0.8 0.5 0.1
Off-grade silicon 97 1.5 0.5 0.3
For reference only, please contact us if you have special needs.
Silicon metal application: aluminum ingot factory/aluminum material manufacturer
1. Aluminum alloy
It can improve the existing properties of aluminum such as castability, hardness and strength. Adding silicon metal to aluminum alloys makes them strong and lightweight.
Therefore, they are increasingly used in the automotive industry. For replacement of heavier cast iron parts. Auto parts such as engine blocks and tire rims are the most common cast aluminum silicon parts.
2. Solar industry and electronics industry.
Silicon metal can also be used as a basic material in the solar and electronics industries. For example, it can be used to make solar panels, semiconductors and silicon chips.
3. Production of silicone rubber, silicone resin, silicone oil, etc.
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