Our square steel tubes are manufactured from high-quality steel (Q235, Q355, etc.) through cold-forming, welding, or seamless processes, featuring a square cross-section that offers superior structural stability compared to round pipes. Lightweight yet high-strength, they provide excellent bending and torsional resistance with a flat surface design for easy welding, bolting, and installation. Available in sizes ranging from 20×20mm to 600×600mm, with wall thicknesses from 1.5mm to 20mm and customizable lengths, they are widely used in building structures, machinery manufacturing, transportation, municipal facilities, and agricultural applications. Various surface treatments (galvanized, painted, coated) are available to suit different environments.
