Hot Rolled Vs Cold Rolled Sheet Metal

The major d ifference between hot rolled and cold rolled steel is the way they are processed.

Hot rolled vs cold rolled sheet metal. To know various materials used to manufacture sheet metal parts. This keeps the market price of hot rolled steel lower. Cold rolled steela rolling process at temperatures that are close to normal room temperature are used to create cold rolled steel. It is also used to produce sheet metal.

As it is easy to form metal in high temperatures without any extra delays it is possible to produce it in larger quantities than cold rolled steel. Cold rolled has sharper corners and more precise dimensions. The difference between hot rolled and cold rolled steel is this recrystallization point. This increases the.

Cold rolled has a smooth and shiny finish while hot rolled has a grey and scaly finish. 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. Hot rolled steel is rolled or shaped at a high temperature while cold rolled steel is rolled at room temperature. The billets are then heated eventually reaching over 1700 f.

The steel cools. Both cold rolled and hot rolled steel start out as large steel slabs or billets cast from hot liquid metal. Cold rolled steel is stored and sold in coiled form after rolling. 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.

At this high temperature they are easily flattened into a long sheet using a set of rollers and then wound up into large coils. Compared to hot rolled steel cold rolled steel has a nearly 20 increase in strength through the use of strain hardening. 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 vs.

It s through a series of breakdown semi finishing sizing semi roughing roughing and finishing that cold rolled steel shapes can be created. The various types mean that steel can by widely used in infrastructure appliances vehicles wind turbines and many more applications. Hot rolled steel has a blue gray appearance and a rough feel once it completes the rolling process and will remain malleable and soft. Cold finished bars are typically harder to work with than hot rolled due to the increased carbon content.

Hot rolled steel involves rolling the steel sheets above re crystallization temperatures. Hot rolled steel properties. The following are some of the key differences in hot rolled vs cold rolled steel. Continuous rolling gives the desired final shape a metal sheet 3 mm and upwards or profile.

Hot rolled steel is malleable and perfect for industrial applications such as structural beams rail tracks and sheet metal.