Ferromanganese is an alloy of iron and manganese and about 80% of it is manganese. The use of ferromanganese ferroalloy is usually used in industries to deal with the effect of sulfur. This ferroalloy will be an oxygen deoxidizing agent in the composition and will be combined with the sulfur present in it and will improve the properties and characteristics of the final product. The use of ferromanganese in the composition of the product increases its hardness and resistance, which makes it suitable for the production of steel or even some other metal alloys.
As mentioned earlier, the production types of this ferroalloy are divided into three types: low carbon, medium carbon, and high carbon. This division will be for different purposes; For example, in cases that are not sensitive to the amount of carbon in the ferroalloy, the high-carbon type is used, and in the cases that are sensitive to the amount of carbon, such as in welding, the low-carbon or medium-carbon type is used.
Another type of ferroalloy is ferrochrome. This alloy is also prepared from the combination of iron and chromium. Usually, the percentage of chromium in this alloy varies from 50 to 70 percent depending on its use. Ferrochrome is most often used for stainless steel. The average amount of chromium in stainless steels is 18%, to which some ferrochromium ferroalloy is added when needed. Like ferromanganese, ferrochrome also has low carbon, medium carbon and high carbon types. High carbon ferrochrome is used for steel and alloy steel bearing products and steel tools. Low-carbon or medium-carbon ferrochrome is mostly used in the production of stainless and acid-resistant steels.
This ferroalloy is a combination of iron and silicon with different percentages from 10 to 90%. The use of this ferroalloy in cases such as strengthening the product, adjusting the properties of the molten material, the cooling process and the final product, and only a small amount of it is common.
This alloy is a combination of iron and molybdenum and is used in cases where there is no need for high strength of the final product and it is also used in the production of stainless steel. This ferroalloy is used to increase the properties of corrosion and wear resistance and is also used in cast iron tools and high speed steel tools.
So far, we have discussed some ferroalloys in detail. An important point about all ferroalloys is that their use is different according to different uses and in different industries. Depending on the type of final product and their expected strength and properties, different types of these ferroalloys are used.
