Cold & Hot Rolled Steel

hot rolled imageSteel is widely used around the world in the construction of buildings, roads and infrastructure. The majority of new structures are supported by a steel frame. There are many benefits of using a steel frame, the main one being the strength and durability compared to those with a wooden frame. Steel frames are also fire resistant, insect resistant and moisture resistant therefore cannot rot or be subject of damp. Steel framework can also be altered and adjusted to any specific size the consumer may want therefore, specific designs and customisation can be achieved in one process.

Two types of steel are generally used for the production of steel frames. These are hot rolled steel and cold rolled steel.

Cold Rolled Steel

Cold Rolled Steel is more suited to prefabricated buildings, where buildings are more shallow whereas Hot Rolled Steel is more suited to taller buildings as steel sections tend to be thicker.

Hot rolled steel processing is steel sheet metal that is then roll-pressed at very high temperatures of over 1700 °F, this is then run through a series of rollers at high speed and high heat to achieve the finished dimensions.  Hot rolled steel is then spun into coils and left to cool, cold rolled steel goes through another process which includes turning grinding and polishing.

Hot rolled steel has a more scaled surface with slightly rounded edges due to less precise finishing. Cold rolled steel is more lightweight and has a finished smooth surface with closer tolerances, this is the most expensive of the two as cold rolled steel goes through more processing compared to hot rolled. Once this process is complete the Steel products are ready to be distributed to its consumer and can be used for any structural build needed.