Galvanized Square & Rectangular Steel Tube

Galvanized Square & Rectangular Steel Tube is a high-quality hollow steel section with a zinc coating that provides excellent corrosion resistance, durability and long service life. It is widely used in construction, structural projects, greenhouse frames, fencing, machinery and industrial applications. As a professional galvanized steel tube manufacturer and supplier, we provide galvanized square tubes and rectangular tubes in various sizes, wall thicknesses and lengths. Our products are available in steel grades including Q195, Q235, Q345, ASTM A500 and other equivalent materials, manufactured according to international standards such as ASTM, EN, DIN, JIS, GB, ISO and BS. With high strength, accurate dimensions, smooth surface and good weldability, galvanized square and rectangular tubes are suitable for both indoor and outdoor applications. The hot dip galvanized coating effectively protects the steel from rust and weather damage, reducing maintenance costs and extending service life. We offer customized galvanized hollow sections with different specifications, zinc coating requirements and surface treatments. With strict quality control and professional export experience, we provide reliable galvanized square and rectangular steel tube solutions for customers worldwide.