The construction industry is one of the most important steel-using industries, accounting for more than 50% of the world's steel demand. Steel is needed to support everything from houses to parking lots to schools and skyscrapers. Steel is also used for the cladding of roofs and facades.

Also, many high-strength sheets of steel are also used in other related industries, such as offshore oil rigs, bridges, civil engineering, construction machinery, rail cars, oil tanks, and pressure vessels. All these applications benefit from the properties of modern steel.

Including automobiles, about 16% of the steel produced globally is used to meet the transportation needs of society. Steel is also essential for the associated infrastructure: roads, bridges, ports, stations, airports, gas stations, etc. Some major applications include:

For ships and containers
Ships built using steel transport 90% of the world's cargo. There are an estimated 17 million containers of different types in the global container fleet, most of which are made of steel.
For infrastructure
Steel is used in bridges, tunnels, railways, and in the construction of buildings such as gas stations, railway stations, ports, and airports. About 60% of the steel used in infrastructure is rebar.