Steel Solutions in Building and Construction

Construction is one of the most important steel-using industries, accounting for more than 50% of world steel demand.

 

Steel is a preferred raw material used in building & construction because it binds well to concrete, has a similar thermal expansion coefficient and is strong and relatively cost-effective.

 

Due to its durability and malleability, mild steel is the most preferred type of steel for building and construction.

Application Areas

1) For buildings

a) Structural sections: these provide a strong, stiff frame for the building and make up 25% of the steel use in buildings.

b) Reinforcing bars: these add tensile strength and stiffness to concrete and make up 44% of steel use in buildings. Steel is used because it binds well to concrete, has a similar thermal expansion coefficient and is strong and relatively cost-effective. Reinforced concrete is also used to provide deep foundations and basements and is currently the world’s primary building material.

c) Sheet products: 31% is in sheet products such as roofing, purlins, internal walls, ceilings, cladding, and insulating panels for exterior walls.

Internal fixtures and fittings such as rails, shelving and stairs are also made of steel.

c) Heavy Gauge Trussing System: Not only is steel affordable, readily available and safer, its intrinsic properties, such as strength, versatility, durability and 100% recyclability allow for improved environmental performance across the entire life cycle of buildings. Hence the choice for use as a trussing system in both residential, commercial & institutional buildings.

2) For infrastructure

a) Transport networks: steel is required for bridges, tunnels, rail track and in constructing buildings such as fueling stations, train stations, ports and airports. About 60% of steel use in this application is as rebar and the rest is sections, plates and rail track.

b) Utilities (fuel, water, power): over 50% of the steel used for this application is in underground pipelines to distribute water to and from housing, carriages, tanks and pressure vessels, nuclear, thermal and hydroelectric plants – all these applications benefit from the attributes of modern steels.