Steel

Steel, alloy of iron and Carbon in which the Carbon content ranges up to 2 percent (with a higher Carbon content,

the material is defined as cast iron). By far the most widely used material for building the world's

infrastructure and industries; it is used to fabricate everything from sewing needles to oil tankers.

Here are some examples of steel products: Buildings: metal roofing, steel beams, reinforcing steel

and mounting brackets. Vehicles: private cars, trucks, trains and cycles. Infrastructure: Bridges,

steel safety barriers for roads, lighting and high voltage pylons, railings and railways.