XLS Metals

Ferrosilicon For Steel | Important Steel Making Furnace Additives


With the rapid development of urban construction, people's demand for steel is also increasing, as an important in the steel making process of ferro silicon has become an important furnace additive. ferro silicon is a kind of ferroalloy material composed of silicon and iron. Since ferro silicon can be used as a deoxidizer, it is widely used in the steel making process to improve the quality of steel.

Ferrosilicon For Steel | Important Steel Making Furnace Additives

Importance Of Ferro Silicon In Steel

Ferro silicon is an important deoxidizer, refiner and promoter in steel making, which can effectively deoxidize the steel, reduce the number of oxides, and purify the steel to improve the purity of the steel. At the same time, ferro silicon can also effectively enhance the furnace temperature, providing a stable constant temperature environment for steel making, and ferro silicon can promote the chemical reaction of the elements between the raw materials, so that steel making is more efficient.

Ferro silicon is very important for steel making, according to statistics, there are about 25.18 million tons of ferro silicon used in steel making each year, accounting for 87% of the total global production of ferro silicon, these ferro silicon is widely used in steel making deoxidation process, in structural steel, bearing steel, low carbon steel and tool steel refining process plays an important role.

Ferro Silicon Grades For Steel

At present, steel mills around the world commonly use ferro silicon instead of the traditional deoxidizer to deoxidize steel, the advantage lies in its low price and good effect, which can effectively reduce the cost of steel making. Among them, the most widely used in steel making is ferro silicon with silicon content of 75%, 72% and 65%. Different steel requirements for ferro silicon is not the same, structural steel silicon content of 0.4%% ~ 1.75%, tool steel silicon oxide content of 0.3% ~ 1.8%, for the production of transformer steel, the requirements of silicon 2.81% ~ 4.8%, many steel mills also ferro silicon as an important alloying agent.

Grades Of Ferro Silicon For Steel Making

Because the silicon element in ferro silicon accounts for a large proportion, so manufacturers in order to better distinguish between different silicon content of ferro silicon, will be based on the different silicon content of ferro silicon in its classification of grades, we provide users with the following a detailed table to facilitate the user to distinguish.


Chemical composition(%)











1.5 2 0.04 0.02 0.2



2 2 0.04 0.02 0.2



2 2 0.04 0.02 0.2



2 2 0.04 0.02 0.2
Size:0-3mm, 0-10mm, 10-50mm,10-100mm.

Ferro Silicon Applications In Steel

The vast majority of ferro silicon is used in the deoxidizing process in steel making. In the steel making process, oxygen needs to be flushed into the smelting furnace as a combustion agent to effectively raise the furnace temperature. In the later stages of steel making, too much oxygen can lead to a large number of oxides in the steel, thus affecting the quality of the steel. The use of silicon in ferro silicon can produce a chemical reaction with the oxygen in the liquid steel to generate silicon dioxide gas, thus playing the effect of deoxidizing the liquid steel, and due to the stability of the chemical reaction between silicon and oxygen, thus effectively guaranteeing the safety of the process, and improve the efficiency of steel making.

  • Deoxidize the molten steel.
  • Reduce oxides in the steel.
  • Change the form of inclusions in the steel to make it easier to clean.
  • Reduce the content of harmful elements in steel, such as: sulfur, phosphorus, etc..
  • Reduce the cost of steel making and improve the quality of steel.

Ferro Silicon Trends In Steel Making

With the continuous development of society, people's demand for steel continues to rise, ferro silicon as an important raw material for steel making, its demand will also increase. Due to the impact of environmental protection on steel making, ferro silicon, as an environmentally friendly steel making material, is more in line with the needs of steel mills for environmental protection, and will become a mainstream steel making deoxidizing material in the future.

XLS Metals Ferro Silicon

XLS Metals(Anyang Xinlongsen Metallurgical Material Co.,Ltd) is a well-established manufacturer mainly focusing on the production of ferro silicon, under which it mainly produces and sells grades of 75%, 72%, 65% and 45%. It has advanced ferro silicon production technology all over the world and has obtained many patents for its production technology, and has set up an independent ferro silicon R&D laboratory to guarantee the quality of ferro silicon. XLS Metals has a large customer base all over the world, which is mainly involved in the steel mills, foundries, metallurgy, chemical and aluminum alloy industries, and provides users all over the world with high purity ferro silicon, and excellent pre-sales and after-sales services.


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