Steels are deformable alloys of iron with carbon and other elements. As a rule, the composition of steel includes carbon, manganese, silicon, sulphur, and phosphorus. To make steels possessing special properties, the metal is alloyed with other additions, such as chromium, nickel, molybdenum, tungsten, copper, niobium, vanadium, etc., along with higher quantities of manganese and silicon.
Commercial Use of Steel
The manufacture of iron in its pure form is a labour-consuming and expensive process. Furthermore, compared to pure iron, Steel has substantially greater mechanical properties, in particular, strength.
Commercially, pure iron is a costly material and is employed only for special purposes, whereas steels are used extremely widely in industrial and domestic applications.
Carbon is the principal impurity in the composition of Steel. It determines to an appreciable extent the properties of steel.
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