ferrosilicon

What is ferrosilicon?
After oxygen, the substance that exists more than any other substance in nature is silicon, and it is extracted in the form of quartz. This substance has many applications, including alloys of this substance that have many industrial uses, ferrosilicon. In the following article, we intend to briefly define ferrosilicon and explain its importance in various industries. Most of this material is composed of silicon (90%) and iron (10%). However, other materials such as sulfur, phosphorus, aluminum and manganese are also present in very small amounts in the composition of ferrosilicon. Another material present in this composition is carbon. The process of producing ferrosilicon, which is called ferrosilicism, involves heating and melting silica and some other methods. This process is carried out inside induction furnaces.
This vertical furnace is charged from its upper part; that is, the valve used to pour raw materials is at its upper part. It can also be discharged from the bottom; that is, the molten materials are removed from the lower part of the furnace. In the ferrosilicism production process, the raw materials, which include oxide crust and silica stone (in granular form), along with reducing materials such as charcoal, coke and coal, are transferred to the melting furnace through daily warehouses by means of a material transfer system. In the articles of the Shahrahan website, you have the opportunity to read all the information you need about rebar and all steel sections, as well as the price of Zagros rebar, today's rebar price reduction, and many other useful information.

What is ferrosilicon?

A brief and practical definition of ferrosilicon
We said that ferrosilicon is a type of alloy that is composed of silicon and iron, and approximately 90% of it is silicon and 10% is iron. Steel factories are among the consumers who have the largest share of ferrosilicon consumption. These factories consume about thirty-eight thousand tons of all ferrosilicon consumed per year. Foundries also consume a lot of this material, and together with steel factories, they consume about 50 thousand tons of ferrosilicon.
The country's industry's need for ferrosilicon was met by imports before a company was established in the country. But now, after the ferroalloying industry became popular and factories started operating in this field, the need for imported ferrosilicon decreased; to the extent that Iran started exporting ferroalloys.

Why do we need ferrosilicon?

Industries related to casting or steel production have the largest share of ferrosilicon consumption:

Deoxidizer: As we mentioned above, ferrosilicon is used as an oxygen scavenger in steel production industries.
Nucleator: Due to the high graphitization of silicon, it is used for nucleation so that gray cast iron can be produced from it.
Alloying element: It is an important material in ferrous and non-ferrous alloys. This material is also used to add silicon to cast iron or cast iron.
It is used as a reducing agent in the production of alloys.
For example, when this material is used in steel, it increases the various properties of steel, such as strength, hardness, etc., or, for example, when this material is added to the melt, it prevents the formation of unnecessary carbides.
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Ferrosilicon in various industries
Ferrosilicon is used in various industries, especially in the metallurgical industry. The use of this material in various industries depends on the composition of its silicon and iron and its other impurities. For example, the use of ferrosilicon in the metallurgical industry is for oxidation, nucleation, and alloying. Pure silicon is used in the electronic industry for semi-normal or rectifier purposes. Derivatives of this substance are used to produce glazes and rubbers. Derivatives of this substance are also used to produce siliceous resin.

Application of ferrosilicon in steel industries
The application of ferrosilicon in steel industries is one of its most important and famous applications, and in fact, it can be said that steel factories are the largest applicants and consumers of ferrosilicon in the global market. It is interesting to know that these factories use nearly 38 thousand tons of microsilica in their production process within a year. In simple terms, it can be said that the main work that ferrosilicon does in the steel industry is the manufacture of parts and the production of steel. But other applications of this alloy include the following:

An important oxygen-generating agent for molten steel
Production of steel parts
Production of alloy cast irons
Manufacture of silicon steel for use in electric motors
Use in the steel smelting industry, etc.
Ferrosilices are supplied to the global market in different sizes and shapes, and their purity levels in different industries vary depending on their application. In the steelmaking industry, ferrosilicon with sizes of 10 to 60 mm is generally used, and its purity is between 75 and 95 percent.

Application of ferrosilicon in steel industries

Application of ferrosilicon in welding industries
The welding industry is also another popular industry in the field of purchasing and using ferrosilicon alloy. The use of ferrosilicon in welding industries is mainly for the production of graphite electrodes. These electrodes play an important role in the welding industry, and therefore it can be said that ferrosilicon is a very important and vital compound in the welding industry. Other advantages and applications of ferrosilicon in welding include its coating properties and capabilities. In fact, welding wires and welding electrodes need a type of coating and protection, which ferrosilicon does well.

Application of ferrosilicon in casting industries
The use of ferrosilicon in casting industries can be described as follows:

Ferrosilicon is introduced as a raw material and a very important compound in the casting industry.
Use of ferrosilicon as a nucleating agent
The raw material for graphite
Use in the casting stage of gray cast iron
Factories that operate with the aim of producing silicon make the most use of ferrosilicon.
Production and manufacture of plain carbon steels
Considering these cases, it can be said that the role of ferrosilicon in the casting industry is also very wide and extensive, and the absence of this valuable material can completely disable the activity cycle in industries.

Application of ferrosilicon in casting industries

Application of ferrosilicon in metallurgical industries
The metallurgical industry also has various uses of ferrosilicon by operating in the fields of production and manufacture of artificial metal parts, machining and welding. The use of ferrosilicon in metallurgical industries can have a great impact on the production of high-quality parts. Among the uses of this alloy, the following can be mentioned:

Ferrosilicon is one of the most important compounds for the production of cast iron or alloy steel.
Production and manufacture of refractory steels
Controlling chemical compositions in discharging molten metal from the furnace section into the ladle
Production and processing of minerals
Since the use of ferrosilicon plays a decisive and key role in various industries, various production units are engaged in providing services in this field. One of the most important active centers that provides special services in this field is Polad Gadaz Company.