Steel is one of the most used metals worldwide thanks to its durability and handling. It is an alloy that is obtained by mixing iron and carbon. Therefore, there is not only one steel, but there are many more, as we mentioned in previous articles.

In this article we are going to explain something more about how steel is produced.


The steel alloy process

When making steel, a mixture of iron with impurities and Cok, a fuel, must be poured into the furnace, which also separates the impurities from the material. By separating the impurities, the iron becomes almost pure with a little carbon. This final result is called pig iron. The carbon joins the Cok and then liquid steel is formed. The next step is to shape and mold it.

On the other hand, waste is usually saved to be used in other elements, such as to make cement or to build roads.

There is also a more economical and sustainable way to create steel, and that is: reusing steel, that is, scrap. 

how steel is produced - steel production


The Electric Arc Furnace for steel

to produce steel, you have to put all the metal in the oven. Electrodes are added to this, which will be powered by electricity to be able to crush the metal from the top. In turn, lower voltages are used in this part of the process to protect what is around from electrical damage.

When the electrodes have already fused and the arcs are protected by the metal, it can melt faster thanks to the increase in voltage caused by the action.

There is an element called Slag, which floats on the surface of Molten Steel. It is made up of metal oxides and helps eliminate impurities from the metal.

When everything is correct, be it temperature, chemistry... The steel must be extracted by preheating by the tilting process. For stainless steel, the slag is transferred to the container so that in the furnace it can recover what it lost in the alloying process. Interesting right?