hot rolled steel coils

Steel that has been heated and rolled at a high temperature is known as hot-rolled steel. Its strength is not very high, yet it is adequate for our purposes. We utilize cold-rolled steel because it has superior plasticity and weldability than hot-rolled steel. Steel that has been drawn by force and has passed the strain hardening stage has high strength but low toughness and weldability, as well as being somewhat hard and brittle. Hot rolling is a high-temperature process. Hot rolling implies that the steel must be heated during or before rolling. Before rolling, it is usually heated above the recrystallization temperature.

Process flow
Ironmaking→steelmaking→continuous casting (or die casting)→hot rolling (hot-rolled products)→cold rolling (cold-rolled products)

Features

Hot-rolled products have great features such as high strength, good toughness, ease of processing, and weldability, thus they are widely utilized in manufacturing industries such as ships, automobiles, bridges, construction, machinery, and pressure vessels.