What is it?

During the pickling process, steel is ran through a leveler, and then applied with a solution of either hydrochloric or sulfuric acid which rids the steel of any oxides and mill scale. Furthermore, the pickling process exposes the steel’s bare surface, allowing for additional processing or coating to be applied. After the steel is pickled, it is usually removed from the bath to avoid over-pickling (especially in sulfuric acid baths) which can cause surface damage, discoloration, and a decrease in size and weight of the steel.

Unigraphics part: M0684