Galvanized square tubes are categorized into hot-dip galvanized and cold-dip galvanized types based on their production processes. It is due to the differing processing methods of these two types of galvanized square tubes that they exhibit many distinct physical and chemical properties. Overall, they differ significantly in terms of strength, toughness, and mechanical properties.

Hot-Dip Galvanized Square Tubes: These are square tubes made by welding steel plates or steel strip after rolling and bending, and then placed in a hot-dip galvanizing bath where they undergo a series of chemical reactions to form a new type of square tube. The production process for hot-dip galvanized square tubes is relatively simple, with high production efficiency and a wide variety of specifications. The equipment and capital required for this type of tube are minimal, making it suitable for small-scale hot-dip galvanized square tube manufacturers. However, in terms of strength, these tubes are significantly weaker than seamless square tubes.