Difference Between Hot Rolled And Cold Rolled Steel Sheet

The hot rolled steel comes in plus minus 0 01 inches or even more than that.

Difference between hot rolled and cold rolled steel sheet.

Although this combines two processes the method as i will point out later has an advantage of economy and scheduling in the cold formed process. Steel comes in many grades specifications shapes and finishes the world steel association lists over 3 500 different grades of steel each with unique properties. Hot rolled steel is more malleable allowing it to be forced into a variety of different shapes. Cold rolled steel is essentially hot rolled steel that has had further processing.

It is also used to produce sheet metal. Cold rolled steela rolling process at temperatures that. In size as well the hot rolled and the cold rolled steel are different. To understand the difference between hot rolled and cold rolled steel.

One key distinction among prefabricated steel products is the difference between hot rolled versus cold rolled steel. The steel is processed further in cold reduction mills where the material is cooled at room temperature followed by annealing and or tempers rolling. Finished product in hot rolled steel has oxidized steel layer but the finished product of cold rolled steel is unoxidized. Hot rolled steel has so many shapes but cold rolled steel has few shapes.

On the contrary the cold rolled steel comes in less than 0 01 inches. First hot rolled steel coil is manufactured and later it is run through a mill which forms the coil into the steel sheet pile sections. Hot rolled steel involves rolling the steel sheets above re crystallization temperatures. This makes hot rolled steel a good choice for the manufacturing of structural components such as i beams or simple cross sections such as rail tracks.

In comparison a cold rolled steel product with the same chemical composition has a yield strength of 365 mpa. Cold rolled steel is stored and sold in coiled form after rolling. Whereas cold rolled steel is processed in cold reduction mills followed by annealing and tempering. As an example a hot rolled steel product may have a yield strength of 235 mpa.

Cold rolling cannot reduce the thickness as hot rolling does. Thus the yield strength of cold rolled steel is higher than that of hot rolled steel. Another difference that can be seen between cold rolled and hot rolled steel is that cold rolled steel has fewer carbon. Hot rolled steel is used in situations where precise shapes and tolerances are not required.

It may seem obvious but some types of steel are better suited for certain. As noted in an earlier post different types of steel undergo a wide range of processes to achieve the proper physical properties many people have heard that there s a difference between hot and cold rolled steel but don t understand what how the production of hot rolled or cold rolled steel is different from one another what industries and applications hot rolled and cold rolled serve. Therefore a sheet of steel processed by a single pass through a roller.