SUMMARY
The steel industry has had a great boom with the passage of time since it expanded with industrialization, many are those who have experimented in facilitating the production of steel from iron as a mineral, because its manufacture is expensive and is required in different economic sectors. The production process of this industrial sector generates environmentally polluting waste, which has been the subject of study; that is why recycling was used as an input for this type of industry, obtained from disused items, known as scrap, including ferrous and non-ferrous objects, being the interest of the iron and steel industry those containing iron and steel. Thus, since the 40's, ferrous scrap has been included as a raw material in the manufacturing process of the steelworks and it is necessary to determine how this element impacts the process, Therefore, a bibliographic review was carried out to provide the advantages and a priori studies of different experiences in the world with this input and to prove that it contributes positively not only to the steel industry but to the world in general. It was concluded that the recycling of post-consumer equipment favors the environment, reduces costs in the manufacturing process and minimizes the mining exploitation of iron and other elements.