Hot Rolled Vs Cold Rolled Sheet Steel

Hot rolling and cold rolling are two methods of shaping steel.

Hot rolled vs cold rolled sheet steel.

Hot rolled steel involves rolling the steel above re crystallization temperatures. Basic difference between hot rolled and cold rolled steel is the way they are processed. The steel is processed further in cold reduction mills where the material is cooled at room temperature followed by annealing and or tempers rolling. Over a million tons of permanent and.

Cold rolled has a smooth and shiny finish while hot rolled has a grey and scaly finish. Cold rolled steel is essentially hot rolled steel that has had further processing. Cold rolled steel while hot rolled steel is heated then cooled cold rolled steel is heated and cooled at the room temperature and then rolled after again. Whereas cold rolled steel is processed in cold reduction mills followed by annealing and tempering.

Once hot rolled steel has cooled it is then re rolled at room temperature to achieve more exact dimensions and better surface qualities. Full hard half hard quarter hard and skin rolled. Hot rolled is manufactured in a single or two step process heating pre rolled steel beam blanks to such a high temperature that it allows it to be easily shaped and formed into sheet pile. Cold rolled has sharper corners and more precise dimensions than hot rolled.

The smaller products are also much more tolerant than the larger hot rolled versions. Cold rolled steel sheets and strips are available in a couple of different conditions including. Alternatively cold rolled steel has sharp edges a very smooth surface texture and an oily or greasy feel to it. Cold rolled steel is essentially hot rolled steel that has been through further processing.

Hot rolled steel is rolled or shaped at a high temperature while cold rolled steel is rolled at room temperature. There are three main visual differences between the two processes. Cold formed is manufactured in two steps. During cold rolling the steel is annealed or exposed to heat and allowed to cool which improves ductility.

Hot rolled steel is used in situations where precise shapes and tolerances are not required. Cold worked steels are typically harder and stronger than standard hot rolled steels. Hot rolled steel has rounded edges a rough surface texture and no grease on its finish.