Contrary to popular belief, iron, steel and cast iron are different metals with varying properties. Iron is a chemical element in the composition of the other two. Cast iron and steel are made primarily from iron ore, but also contain other components and can be differentiated by the carbon content: cast iron contains between 2.1 and 6.6 percent and steel contains 0.03 to 2 percent. To make steel, you need iron ore, coal, lime, ferroalloys, aluminum, chromium, manganese, silicon, titanium and vanadium. These materials contribute special characteristics to the steel, which can be adapted for various uses: architecture, furnishing and