Galvanized Steel Tube 30x30mm Square 1.5mm

This 30 × 30 mm square galvanized steel tube combines a compact 1.5 mm wall thickness with a Z180 hot-dip zinc coating, giving fabricators a light yet rigid section that resists rust in everyday outdoor exposure. It is a practical choice for frames, supports, railings and structural details where clean lines and dependable corrosion protection both matter.

The 30 × 30 mm profile is easy to cut, drill and weld, while the zinc layer shields the section against moisture, condensation and mild chemical exposure. Typical uses include greenhouse frames, fencing and gate structures, handrails, shelving and racking, solar mounting frames, machine guards and lightweight structural members. For buyers comparing coating options, the choice between zinc and zinc-aluminium protection can affect service life, so it pays to weigh the corrosion behaviour of each system before ordering.

For other square or rectangular sizes, thicker walls or larger coating weights, explore our complete galvanized steel tube range or send us your drawing and we will confirm supply options.

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Related Reading

Corrosion protection is the main reason buyers choose coated steel, and galvanized and galvalume coatings do not perform identically in every environment. Our article compares both systems side by side — read more about galvanized vs galvalume corrosion protection to confirm which coating fits your project.