Cast iron is an alloy of iron and carbon with a relatively high carbon content (2,11% < C < 6,67% which is the saturation limit) produced by heating iron ore in a blast furnace with coke and limestone. This deoxidises the ore and drives off impurities, producing molten iron. The molten iron is then poured into moulds to produce the desired shape, allowing very intricate designs to be created. Cast iron is widely used in many sectors for its durability, ability to absorb vibrations; and so reduce sound levels, its corrosion resistance; prolonging the life of its components, good workability, large availability and absence of porosity. Iron ore’s production process makes it possible to produce cast iron bars of infinite length and without any imperfections or porosity and with a very smooth surface..