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

Hot-Dip Galvanized Square Tubes: These are square tubes manufactured by welding steel plates or steel strip coils after forming. The square tubes are then placed in a hot-dip galvanizing bath where they undergo a series of chemical reactions, resulting in a new type of square tube. The production process for hot-dip galvanized square tubes is relatively simple and highly efficient, with a wide variety of sizes available. 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.