DME University

Cold Rolled Steel

The cold rolled steel surface shown here shows the smooth, bright, metallic finish that is free from scale. This surface is acceptable for many applications, but it is also machined for size, shape, and surface requirements. This illustration depicts the steel grain structure during cold rolling under high pressure. The rolling process compresses and stretches the grain structure, significantly increasing the strength of the steel. Cold rolled steels are rolled as close to their final tolerance as possible, from within a few thousandths to as much as .020, depending upon the carbon content range and product type. Rolling cold produces accurate part tolerances as well as part shape.



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