Difference Between Hot Rolled And Cold Rolled Sheet Metal

In general cold rolled and cold formed steel costs more than hot rolled steel because of the extra processing steps.

Difference between hot rolled and cold rolled sheet metal.

Hot rolled steel has rounded edges a rough surface texture and no grease on its finish. There are some fundamental differences between these two types of metal. Nevertheless other advantages of cold rolling include a good finish a high rate of production and a fast molding speed. In this article we will compare hot rolled vs cold rolled steel sheets.

There are three main visual differences between the two processes. The rolls induce plastic deformation. Hot rolled steel involves rolling the steel above re crystallization temperatures. Some of the advantages of cold rolled steel definitely have to do with regards to product precision.

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. Whereas cold rolled steel is processed in cold reduction mills followed by annealing and tempering. Alternatively cold rolled steel has sharp edges a very smooth surface texture and an oily or greasy feel to it.

Thus the yield strength of cold rolled steel is higher than that of hot rolled steel. Basic difference between hot rolled and cold rolled steel is the way they are processed. When to use hot rolled steel. Furthermore cold rolled steel is considered to be more durable compared to hot rolled steel.