Expanded Metals
Expanded metal is used primarily for grating, filtration media, and fencing. Carbon and stainless steels can be perforated with holes or expanded to a diamond shaped pattern, which reduces the surface area. When an expanded metal is made, it is sometimes skin passed, which removes any burrs from elongation process. It also improves the expanded metal characteristics because with a slight reduction in the thickness of the metal, you increase the yield strength and make the material stronger.
