Introduction to round laminate

Round rolling is a type of metal product that consists of bars with a circular section, obtained through hot or cold rolling processes. These bars are widely used in the construction industry, mechanical engineering and the manufacturing of metal structures due to their excellent mechanical properties and versatility in different applications.

It is characterized by its cylindrical shape and its surface that can vary from smooth to specific finishes depending on the manufacturing process. The round laminate can be composed of different types of steel or other metals, adapting to specific technical requirements of resistance, ductility or aesthetics.

hot rolling

Hot rolling is the process by which metal is heated to a temperature above its recrystallization point and passed through a series of rollers that mold the material into the desired round shape. This process allows obtaining long and continuous bars with precise dimensions.

This method is ideal for producing round laminates with large diameters and in large quantities. Heating facilitates the plastic deformation of the material, which improves mechanical resistance and reduces internal defects, giving the final product a homogeneous and compact structure.

In addition, hot rolling can include subsequent heat treatments to optimize specific properties, such as hardness or toughness, adapting the round rolling to different industrial applications.

cold rolling

Cold rolling is performed at room temperature and involves passing metal through rollers to obtain a smoother surface finish and greater dimensional accuracy compared to hot rolling. This process increases the strength and hardness of the material due to strain hardening.

Cold produced round laminate is typically used in applications where a superior aesthetic finish or tight dimensional tolerances are required. However, the diameters that can be obtained with this technique are generally smaller than in hot rolling.