Difference Between Hot And Cold Sheet Steel

Cold rolling is done when the metal is able to form new grains as the old ones are deformed by rolling and bending the metal.

Difference between hot and cold sheet steel.

Whereas cold rolled steel sheets are used for precision and quality fabrication work. It s through a series of breakdown semi finishing sizing semi roughing roughing and finishing that cold rolled steel shapes can be created. Difference between hot rolled steel and cold rolled steel hot rolled steel. Cold rolled steel has an oily or greasy finish very smooth surface and very sharp edges.

This lack of knowledge concerning the two types of steel is more common than you would think. When forming metal it has to go through a process called rolling. In other words understanding the differences between hot and cold rolled steel will help designers and engineers achieve better results and at the best price possible. Cold rolled has a smooth and shiny finish while hot rolled has a grey and scaly finish.

Thus the yield strength of cold rolled steel is higher than that of hot rolled steel. The rolls induce plastic deformation. One important difference to understand is hot rolled steel and cold rolled steel. In hot rolled steel final rolling is done when the steel is hot.

In cold rolled steel final rolling is done when the steel is cooled to the room temperature. Hot rolled steel has a rough blue grey finish whereas cold rolled steel has a smooth grey finish. When you choose metals for a job it s important you know how the hot rolled and cold rolled steel are different. The basic difference between.

For example consumer electronics and telecom products metal furniture automobile industry etc. Cold rolled has sharper corners and more precise dimensions than hot rolled. For example railway track automotive frames structural frames low accuracy sheet metal parts etc. As an example a hot rolled steel product may have a yield strength of 235 mpa.

In comparison a cold rolled steel product with the same chemical composition has a yield strength of 365 mpa. Hot rolling is a mill process which involves rolling the steel at a high temperature typically at a. The difference between hot rolled and cold rolled steel is this recrystallization point. Hot rolled steel sheets are used in fabrication work where aesthetics and quality are not very important.

Cold rolling steel allows for the creation of very precise shapes. The difference is not in their specifications or grade but in how they are processed at a mill. Cold rolled steel is essentially hot rolled steel that has had further processing.