What Is a Caster Fold?

Caster Fold

A caster fold is a surface defect that occurs during the casting process of steel, typically when the metal solidifies unevenly as it is poured into molds. This defect manifests as a fold or winkle in the steel's surface, often caused by turbulence during the process or improper cooling conditions during the solidification. Caster folds can affect the integrity and appearance of the finished steel product and may require further processing or quality control measures to ensure the material meets the required standards for use in an application.