40 mm Galvanized Square Tube
40×40 mm galvanized square tube — a general-purpose precision profile for light industry frames and construction supports.
40 mm Galvanized Square Tube
40×40 mm galvanized square tube — a general-purpose precision profile for light industry frames and construction supports.
Specifications
| Size | 40 × 40 mm |
|---|---|
| Wall Thickness | 1.2 – 2.5 mm |
| Standard | GB/T 3091 |
| Zinc Coating | Hot-dip galvanized |
| Length | 6 m |
Description
Product Overview This 40×40 mm galvanized steel square tube is a general-purpose precision profile used in light industry and construction. Made from high-purity galvanized steel strip, it is cold-bent, resulting in a regular and uniform square cross-section.
It combines lightweight characteristics with stable structural load-bearing capacity, making it suitable for the strength requirements of small to medium-sized frames, decorative supports, and other applications. The dense and uniform hot-dip galvanized layer effectively isolates it from moisture and corrosion.
Applications - Small to medium-sized frames - Decorative supports and structures - Light industrial equipment frames - Semi-outdoor structural applications
Galvanizing Process
Our galvanized square tubes undergo a meticulous hot-dip galvanizing process. The production chain includes: 1) Alkaline degreasing at 80°C to remove fabrication oils; 2) Hydrochloric acid pickling to remove mill scale and rust; 3) Fluxing in zinc ammonium chloride solution; 4) Immersion in molten zinc bath at 445–455°C; 5) Controlled cooling and inspection.
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