What are the advantages of hot rolling?

Hot rolled steel is steel that is rolled out when it is hot. We often see clips of sheets, slabs or bars of red-hot steel being rolled to give them a required shape. As steel becomes hotter, it can behave in a more plastic way and can be more easily sized and shaped by the rollers. We see flat sheets or long bars and rods of steel come out of the rollers. Railroad track is hot rolled to make it into the shape we know.

We know that steel that is hot rolled will be more flexible than cold rolled steel because the hot-rolled steel has larger crystal structure. Cold rolling creates smaller crystals in the matrix, and that makes cold-rolled steel stronger and harder, but less flexible. If the cold rolling process is not carefully monitored, the steel can become brittle and can be hard to work with.