Steel
Steel is an alloy of iron with a carbon content that can range from 0.03% to 1,075% of its composition, depending on its grade. Steel is not the same as iron and they should not be confused. Iron is a metal relatively hard and tough, with atomic diameter (dA), 2.48 Å with melting temperature of 1535 ° C and boiling point 2740 ° C. The main difference between iron and steel lies in the carbon content: steel is iron with a carbon content between 0.03% and 1,075%. Steel retains the metal characteristics of iron in its purest form, but the addition of carbon and other elements either metallic or non-metallic improves its physical-chemical properties, especially its resistance. There are many types of steel according to the content of alloying elements. Each type of steel will allow different uses and applications, making it a versatile and widely used material in modern life.