Metanoia company has the ability to supply ferrosilico-manganese in the tonnage and conditions requested by respected consumers, due to its wide communication network with domestic producers, China, India, etc., and the extent of its office in UAE, Iran, etc.


With the advancement of science and technology, the materials and equipment used in the production process have also made significant progress. One of these materials that has recently been heavily used are ferroalloys. These ferroalloys are used to produce different types of alloys and this has increased their popularity


What is Ferrosilico Manganese?

Ferrosilico manganese (FeSiMn) is a ferroalloy that contains silicon and manganese in its composition. This ferroalloy has large amounts of manganese in its composition, which can be obtained by heating and mixing manganese ore with silicon in furnaces. This alloy usually has between 12 and 16% of silicon and between 50 and 70% of manganese. Since both elements silicon and manganese are present in ferrosilico manganese, they have given their own properties to this ferroalloy

Therefore, ferro-silico-manganese can be used as a loading aid for the production of low-carbon steels. Manganese silica can add the necessary additional silicon to the production process and prevent further oxidation. Besides this, the use of this material will improve some of the mechanical properties of table steel. Iron, phosphorus and carbon can be mentioned among other materials present in ferrosilico manganese.

There is another type of this material known as low-carbon ferro-silico manganese, which contains manganese, silicon, iron, phosphorus, carbon and sulfur. The appearance of this substance is in the form of metal lumps, which have a silver-gray rust. This material is solid and has no smell. There is usually no pollution in ferro-silico manganese and it can be prepared in crushed form.



Ferrosilico manganese production process


Ferroalloys will typically be produced from the reduction of a metallic ore, usually an oxide. Among the most important methods of producing ferroalloys, the following can be mentioned:

  • Production by carbon with the addition of electrical energy in arc furnaces
  • Production by metals by reduction of thermal metals, usually aluminum and silicon


High-carbon ferromanganese is produced from the reduction of manganese ore by carbon in electric arc furnaces or blast furnaces. Medium or low carbon ferromanganese is also produced by refining high carbon ferromanganese or using silicon manganese as raw material. Since ferro-manganese and ferro-silicon are used in the production process of ferrosilico-manganese, its production process will be carried out in ferro-manganese furnaces with high carbon. You should also know that due to the presence of silicon element in ferro-silico-manganese composition, its production process will be more difficult compared to ferromanganese; Because it will need a higher temperature

In the production process of ferro-silico-manganese, it is necessary to use the slag that is produced from the high-carbon ferro-manganese production process. Since this slag contains about 40% manganese oxide, it can be considered a manganese-based material. Experts use sand or quartz to produce the silicon required for the ferrosilico-manganese production process. Also, to revive these materials, they need to use carbon; For this reason, coke will be added to all the materials, now it is enough to add iron to the compounds at high temperature to obtain ferrosilico manganese.



Properties of Ferrosilico Manganese


To know more about this substance, we need to discuss its properties. One of the factors that makes the use of this material in the industry so popular is its many properties. Among the most important properties of ferro-silico-manganese, the following can be mentioned


This material will not dissolve in water, oil or alcohol.

  • Ferrosilico manganese is available as metallic stones with silver-gray color and has no smell.
  • Its use is economical due to the presence of silicon and manganese, and now it is the second most used ferroalloy in the world.
  • The density of this material is 6.1 grams per cubic centimeter and it has a melting temperature in the range of 1060 to 1350. The reason for this change in its melting temperature range is the presence of different compounds.
  • Manganese ferrosilico will be classified among non-hazardous and non-flammable substances. The flash point of this substance is above 93 degrees Celsius.
  • The use of this material will make steel with improved properties and reduce the impurity of steel to a great extent.
  • This material can be produced in three different grades and mainly exists in two groups with low carbon and high carbon.
  • Ferro-silico-manganese has good corrosion resistance.
  • Its use can lead to a decrease in the required temperature as well as an increase in the capability at lower temperatures.
  • This ferroalloy is chemically stable under normal conditions.
  • Its contact with moisture, acids or alkaline bases should be avoided; Because it will cause the formation of highly flammable gases such as hydrogen and toxic gases such as arsenic and phosphine.


Industry Standard Ferro Silico Manganese Sizes

Ferrosilico Mn are available as silver-gray metallic lumps. This solid and odorless material does not contain any external contamination such as slag and non-metallic components, etc. and is usually offered in crushed and sieved form. The standard sizes of Ferrosilico Manganese are as follows:

  • 20 mm to 80 mm with a size of less than 10%
  • 10 mm to 50 mm with less than 10% size
  • 3 mm to 25 mm with a size of less than 5%

Also, the maximum size in all three cases will be a maximum of 10%. This material will be packed in bulk and usually in large bags.




Ferrosilico manganese in the steel making process


As mentioned, ferrosilico-manganese ferroalloys mainly play a very important role in the steel making process. The average consumption of manganese in one ton of steel is about 7 kg. Therefore, there is a need to produce ferrosilico-manganese ferroalloy in bulk and in significant tonnages. Although this material will be used as an alloying agent in the iron production process, its main use is in the steel industry.


By removing sulfur from the steel, manganese will prevent the steel from becoming brittle during the hot rolling process. In addition, manganese can increase the strength and hardness of steel. Silicon, which is a strong oxidizing agent, makes it easier to make steel with uniform chemical and mechanical properties. The effects caused by the addition of ferro-silico-manganese to steel depend on the alloying elements present in these elements. Both silicon and manganese have a very important role on the properties of steel.


Since both silicon and manganese have a strong desire to combine with oxygen, they can prevent oxidation in the steel production process. Therefore, the produced steel will be cleaner and more uniform. Of course, it should also be noted that ferro-silico-manganese will be added to steel in small amounts. Therefore, it allocates a low share of the total costs of steel production in large factories


Today, there is no single product that can replace ferrosilico-manganese in the steel production process. On the other hand, due to the fact that in smaller factories, there are no necessary facilities for storing and moving materials and managing to combine them in the inputs, ferro-silico-manganese is only used in power plants or large steel factories.