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Ferrosilicon – 1 minute to read the basic information of ferrosilicon

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22 Jan 2026
Description ferro silicon and it's Chemical and Physical Characteristics

Description

Ferrosilicon is made of iron and silicon with a specific gravity silicon content 15-90%.

We can provide natural blocks, standard blocks, granules, powders, etc.

 

 

 

 

Application:

It is widely used in steel industry, foundry industry,smelting magnesium and other industrial production.

How to product ferrosilicon

  1. The primary raw material used in the production of fesi are iron ore,coke and silica. Iron ore is used  as the source of iron,while coke and silica are used as reducing agents.The quality of these raw material plays a significant role in the quality of the final product.
  2. Iron Ore+Silica+Coke–Submerged Arc Furnace–Finished product FeSi

Chemical and Physical Characteristics

  • HS CODE:7202210010
  • CAS NO.: 8049-17-0
  • China Standard:GB/T 2272-2020
  • Melting point: The melting temperature varies depending on the silicon content.
  • For example: FeSi 75 melting temperature range of 1300 ~ 1330 ℃.
  • FeSi 45 melting temperature range of 1250 ~ 1360 ℃.
  • Boiling Point: The boiling point for this substance is 2355°C
  • Stability:Ferrosilicon is extremely stable
  • Top quality ferrosilicon without weathering in a year.
  • Ordinary ferrosilicon will weathering in half a year

What are the types of ferrosilicon?

  1. Low Carbon FeSi—Used to avoid the reintroduction of carbon in the manufacture of stainless and electrical steels.
  2. Low Titanium FeSi—Used to avoid the formation of TiN and TiC mixtures in electrical steels and certain specialty steels.
  3. Low Aluminium FeSi—Used to avoid the formation of hard Al2O3 and Al2O3-CaO mixtures in a range of steel grades.
  4. Special ferrosilicon—A generic term for customized products requiring different alloying elements.

Please contact us if there is anything about ferrosilicon that I can do for you!



Contant Long Silicon
Our company was founded in 2006 with a registered capital of 5 million CNY. It mainly produces iron alloys and auxiliary materials in iron and steel smelting, building materials, electric power, petrochemical, non-ferrous smelting and other industries.
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