Galvanized Square Tube: Durable & Corrosion-Resistant Structural Steel Tubing
◆ Galvanized square tube, also known as hot-dip galvanized square hollow section (SHS), is a widely used hollow structural steel formed by welding steel strip into square profiles and applying hot-dip galvanization treatment. The complete zinc coating tightly bonds to the steel substrate, offering outstanding anti-rust and anti-corrosion performance, which greatly extends the service life in humid, outdoor and coastal environments.

Available in a full range of sizes and grades, our galvanized square tubes comply with international standards including EN, ASTM and GB. Common grades cover Q235B, Q355B. Custom dimensions, cutting and pre-drilling services can be provided to match different project demands. With smooth surface, uniform zinc layer and stable mechanical properties, these square tubes are preferred for construction frameworks, fence posts, greenhouse structures, solar bracket, machinery frames and transportation support projects.

BAOLF STEEL GROUP supplies high-quality galvanized square tubes with full mill test certificates. We support container shipment worldwide, flexible order quantities and fast delivery. Whether for civil building, infrastructure or industrial fabrication, our galvanized square hollow sections deliver reliable cost-effective solutions for global buyers.











