Steel & Stainless Steel
Steel is an alloy of iron and carbon containing less than 2 per cent carbon and small amounts of manganese, silicon, phosphorus, oxygen, nitrogen and aluminium. There are more than 3,500 different grades of steel with alloying elements such as nickel, chromium, vanadium, tungsten and niobium used to broaden the steel’s physical, chemical, and environmental properties. Stainless steel is an alloy steel with at least 10-11 per cent of chromium that is designed to resist corrosion by forming a chromium oxide film on the steel. In addition to being widely used in the construction of roads, railways and buildings, steel is used in shipbuilding, mining and in the manufacture of heavy equipment, white goods and household appliances.