40×80×1.6 mm Galvanized Rectangular Tube
40×80×1.6 mm galvanized rectangular tube — a commonly used profile in construction and engineering for frames and support systems.
40×80×1.6 mm Galvanized Rectangular Tube
40×80×1.6 mm galvanized rectangular tube — a commonly used profile in construction and engineering for frames and support systems.
Specifications
| Size | 40 × 80 mm |
|---|---|
| Wall Thickness | 1.6 mm |
| Standard | GB/T 3091 |
| Zinc Coating | Hot-dip galvanized |
| Length | 6 m |
| Packaging | Bundled with steel straps |
Description
Product Overview This 40×80×1.6 mm galvanized rectangular tube is a commonly used profile in the construction and engineering fields. It is made from high-quality galvanized steel strip, combining lightweight construction with structural stability.
The hot-dip galvanizing treatment forms a dense protective layer, effectively resisting moisture and corrosion, making it suitable for long-term use in outdoor and humid environments and extending the material's lifespan. Standardized manufacturing ensures high dimensional accuracy and clean cuts.
Applications - Steel structure frames - Photovoltaic support systems - Fencing and security barriers - Decorative architectural frames
Galvanizing Process
Our galvanized rectangular 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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