Hot Vs Cold Rolled Steel Sheet

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Hot vs cold rolled steel sheet.

The differences between hot rolled steel and cold rolled steel relates to the way these metals are processed at the mill and not the product specification or grade. In comparison a cold rolled steel product with the same chemical composition has a yield strength of 365 mpa. Thus the yield strength of cold rolled steel is higher than that of hot rolled steel. All of ours ub uc pfc rsa flats are hot rolled whereas shs chs rhs that we provide are cold rolled structural steel.

Whereas cold rolled steel is processed in cold reduction mills followed by annealing and tempering. It is also used to produce sheet metal. 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. 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.

The pros and cons of hot rolled steel come down to strength versus price. The various types mean that steel can by widely used in infrastructure appliances vehicles wind turbines and many more applications. Hot rolled steel involves rolling the steel at high temperatures where cold rolled steel is processed further in cold reduction mills where the material is cooled followed by. The rolls induce plastic deformation.

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. The major d ifference between hot rolled and cold rolled steel is the way they are processed. Hot rolled steel is easier to make to shape and form. It may seem obvious but some types of steel are better suited for certain.

Cold rolled steel is stored and sold in coiled form after rolling. Sheets can also be produced in cold rolled option but they are only available on special request. Hot rolled steel involves rolling the steel sheets above re crystallization temperatures. Hot rolled steel is malleable and perfect for industrial applications such as structural beams rail tracks and sheet metal.

Hot rolled steel is weaker than cold rolled but it s also cheaper since it doesn t go through the second production process. Hot rolled steel is more malleable allowing it to be forced into a variety of different shapes. As an example a hot rolled steel product may have a yield strength of 235 mpa. To know various materials used to manufacture sheet metal parts.