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.

Steel is a combination of two elements, iron and carbon. Steel is broken into four types and then in those types steel is broken down into grades. There are four main types of steel, Carbon Steels, Alloy Steels, Stainless Steels, Tool Steels.