The core materials for communication towers are steel (angle steel or steel pipe), typically treated with hot-dip galvanizing for corrosion protection; reinforced concrete is used in a small number of low-profile applications.
Main structure: High-strength carbon structural steel or low-alloy high-strength structural steel; specific forms include angle steel (angle steel towers) and steel pipe (monopole towers, three-pipe/multi-pipe towers).
Anti-corrosion process: Component surfaces undergo hot-dip galvanizing to form a dense zinc layer that resists outdoor corrosion, with a design service life typically exceeding 20 years.
Special types: Some guyed towers or simple pole-style towers may utilize reinforced concrete for foundations or the pole body itself, though the load-bearing elements of the tower structure remain primarily steel.
