How is steel made from iron?

Iron is mined from the earth. In its raw form it is unrefined, not pure iron. The way to remove the iron is with heat in a process called smelting. There are three ways to process the iron into a usable form. One of them is to make steel. This is the most refined metal that can be made from iron. Most of the impurities are removed from the iron and it becomes a much stronger metal.