40×60 mm Galvanized Rectangular Tube
40×60 galvanized rectangular tube with precision cold-cut ends for efficient installation in structural and shelving applications.
40×60 mm Galvanized Rectangular Tube
40×60 galvanized rectangular tube with precision cold-cut ends for efficient installation in structural and shelving applications.
Specifications
| Size | 40 × 60 mm |
|---|---|
| Wall Thickness | 1.5 – 3.0 mm |
| Standard | GB/T 3091 |
| Zinc Coating | 180 – 400 g/m² |
| Length | 6 m |
| Cut Type | Cold-cut, burr-free |
Description
Product Overview This 40×60 galvanized rectangular tube, thanks to the precise jointing process achieved through cold cutting, is a structural material that combines attention to detail and high quality.
Cut using a cold cutting process, the cuts are neat, flat, and burr-free, eliminating the labor costs of secondary grinding and making installation and splicing easier and more efficient. The 40×60 rectangular cross-section ensures both structural stability and spatial adaptability.
Applications - Shelving beams and racking systems - Frame columns and structural supports - Main railing components - General construction framing
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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