Structural steel is a versatile construction material that combines manufacturing
versatility and structural strength. It has low weight and is used for commercial and
residential infrastructure construction. Structural steel is used in building and
construction projects. It is carbon steel with 2.1% carbon by weight. Carbon is the
second-most essential ingredient in carbon steel after iron. Increasing the quantity of
carbon in steel leads to materials with high strength but low ductility. The carbon
amount or content required depends on how the steel will be utilized.