Hot Rolled Steel is a mill process where the steel is rolled at high temperatures (above steel’s recrystallisation temperature) allowing it to be shaped and formed easily in large qualities.
Metal rolling replaced the pre-industrial metalworks and blacksmiths ‘hammer-and anvil’ approach. This allows the creation of metal alloy sheets with much fewer labour requirements. This has fast become the benchmark for mass production of high-quality steel for most applications. The product of rolling heated steel is commonly referred to as hot rolled steel.
Advantages & Applications of Hot Rolled Steel
Hot rolled steel is chosen as the preferred method for cost-effective steel due to how simple the manufacturing process is. The hot rolled steel can be cooled at room temperatures compared to having a quenching in a liquid bath. The helps manufacture high-yield steels in fewer stages.
It is usually cheaper to manufacture than cold rolled steel due to there not being any delays in the process, as reheating the steel is not required.
Hot rolled steel is abundantly used in the steel industry. The most common application for hot rolled steel is in the welding and construction trades, such as on railroad tracks and beams. Hot rolled steel is sued when precise shaping is not required.