Galvanized Steel Tube 80x80mm Square 3.0mm

This 80 × 80 mm square galvanized steel tube combines a 3.0 mm wall with a Z275 hot-dip zinc coating, giving fabricators a heavy-duty hollow section for load-bearing work. It is commonly specified for building frames, columns, truss chords, mezzanine supports, storage racking, machine bases and industrial guarding exposed to the weather.

The 3.0 mm wall gives the 80 mm square section the stiffness and compressive capacity to act as a primary column, beam or truss member in low-rise buildings and heavy racking. The Z275 coating carries a higher zinc mass than commercial weights, extending service life in humid, coastal and mildly industrial atmospheres. Flat faces make bolting, welding and detailing straightforward, and the section accepts powder coating or paint where a project colour is required.

Typical uses include racking uprights and beams, mezzanine and walkway framing, conveyor supports, carport structures, gate frames and heavy-duty railing posts where the galvanized finish removes the need for on-site painting.

For other square and rectangular profiles, wall thicknesses or coating weights, browse our full galvanized steel tube range, or send your drawing and we will confirm available supply options.

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Need this 80x80x3.0 mm section in volume, cut to length, or with a different zinc coating weight? Contact our export sales team for pricing and lead time through the contact page.

Related Reading

Wall thickness and profile geometry decide both the strength and the shipping weight of a hollow section, so it pays to check the numbers before fixing a specification. Our steel tube weight chart lists square and rectangular profiles with their theoretical weight per metre.