The industries that use Beyond the Surface: Understanding the Structural Variances of DD12 and DX52 Steel include construction, automotive, manufacturing, and engineering. These steels are commonly used in the production of structural components, such as beams, columns, and panels, as well as in the manufacturing of automotive parts, such as chassis, frames, and body structures. They are also used in the fabrication of machinery and equipment, as well as in various industrial applications where strength and durability are important factors.