Wholesale Quality Aluminum Square Tube from China Factory Direct

Commonly used aluminum square tubes include five grades: 1060, 3003, 5083, 6061, and 6063. 1060 aluminum square tubes have high purity and good plasticity, suitable for simple bending; 3003 has excellent rust resistance, suitable for humid outdoor environments; 5083 has excellent corrosion resistance and weldability, and is often used in marine anti-corrosion structures; 6061 has higher strength and rigidity, and stable load-bearing performance; 6063 aluminum square tubes have excellent surface treatment effects and outstanding decorative texture.

Aluminum square tubes are lightweight, rust-resistant, anti-aging, and weather-resistant. They can be cut and welded, and can also undergo anodizing, spraying, and wire drawing finishes. Widely used in the construction industry, it is used as curtain wall frames, ceiling grilles, door and window frames, and exterior wall decorative frames; in municipal engineering, it is used to make railings, walkway handrails, and landscape pergolas; in industry, it is used to build equipment racks, photovoltaic brackets, and tooling support structures; it is also commonly used in automotive interior frames, kitchen and bathroom hardware, and factory partition frames, combining both decorative aesthetics and structural practicality.

What are the surface treatment processes for aluminum square tubes?

1. Natural Polishing: Polishing to brighten the surface, retaining the original metallic color, with a simple texture, mostly used for internal frames and ordinary hardware components.

2. Anodizing: Forming a protective oxide film, improving corrosion resistance and wear resistance, available in silver-gray, bronze, black, and other color schemes, commonly used for outdoor decoration and railings.

3. Electrostatic Powder Coating: Full and thick paint surface, many colors and styles, resistant to sunlight and fading, suitable for curtain walls, ceilings, and landscape frames.

4. Fluorocarbon Coating: Top-notch weather resistance and corrosion resistance, resisting wind, rain, and ultraviolet rays, suitable for high-rise exterior walls and outdoor projects.

5. Brushed Finish: Creates a fine texture on the surface, giving it a high-end look. Commonly used in interior decoration, furniture, and light luxury commercial frames.

6. Electrophoretic Coating: Creates a uniform and smooth coating with strong adhesion and a refined appearance. Often used for doors, windows, and high-end decorative square tubes.

7. Protective Film Application: Applying a protective film to prevent scratches and oxidation, used for protection during processing and installation.

What are the differences between fluorocarbon spraying and electrostatic powder coating processes for aluminum square tubes?