What Is Stretcher Leveling?

Stretcher Leveling

Stretcher leveling is a metal flattening process used to remove shape defects like waves, buckles, or coil sets from steel sheets. It works by stretching the steel beyond its yield point, which permanently elongates the material and relieves internal stresses. This results in exceptionally flat and stable sheets with minimal spring back, making stretcher leveling ideal for applications that require tight flatness tolerances, such as automotive panels, appliance parts, and precision fabrication.