50×100 mm Galvanized Rectangular Tube
50×100 galvanized rectangular tube with golden ratio cross-section for medium-load structural applications requiring high stiffness.
50×100 mm Galvanized Rectangular Tube
50×100 galvanized rectangular tube with golden ratio cross-section for medium-load structural applications requiring high stiffness.
Specifications
| Size | 50 × 100 mm |
|---|---|
| Wall Thickness | 1.5 – 3.0 mm |
| Standard | GB/T 3091-2015 |
| Zinc Coating | 180 – 400 g/m² |
| Length | 6 m |
| Surface | Fine galvanized finish |
Description
Product Overview This 50×100 galvanized rectangular tube, with its golden ratio cross-section and superior craftsmanship, is the preferred choice for medium-load structural applications.
The 50×100 flat rectangular design offers outstanding bending and torsional resistance, providing 20% higher stiffness than round tubes at the same weight. The surface undergoes a fine galvanizing process, resulting in a uniform, smooth, and defect-free zinc layer with an outdoor service life of over 20 years.
Key Features - 20% higher stiffness than round tubes at the same weight - Precision cutting for burr-free installation - Conforms to GB/T 3091-2015 standards - Outdoor service life exceeding 20 years
Applications - Steel structure factory building frames - Municipal guardrail main components - Large greenhouse main frames - Commercial display rack structures
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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