1 / 1
Round aluminum tube specifications are customized based on application scenarios, with alloy type, diameter, wall thickness, and precision being core parameters:
| Specification Category | Detailed Parameters | Typical Alloys | Typical Applications | Quality Control Requirements |
| Outer Diameter (OD) | Small: ≤ 20mm | 1060, 3003, 6061 | Electrical conductors, medical instruments, small heat exchangers | Tolerance ±0.05mm, no surface scratches |
| Medium: 20mm – 200mm | 3003, 5052, 6061, 6063 | Architectural handrails, furniture frames, automotive parts, hydraulic tubes | Tolerance ±0.1mm, straightness ≤ 0.5mm/m | |
| Large: ≥ 200mm | 5083, 6061, 7075 | Industrial pipelines, marine structures, architectural columns | Tolerance ±0.2mm, wall thickness uniformity ≤ 5% | |
| Wall Thickness (WT) | Thin: ≤ 1mm | 1060, 3003 | Heat exchange fins, decorative tubes, small containers | Thickness tolerance ±0.03mm, no pinholes |
| Medium: 1mm – 10mm | 3003, 5052, 6061 | Handrails, automotive exhaust pipes, furniture, general machinery | Thickness tolerance ±0.05mm, weld strength ≥ 80% of base metal (for welded tubes) | |
| Thick: ≥ 10mm | 5083, 6061, 7075 | Load-bearing structures, marine components, high-pressure pipelines | Tensile strength ≥ 250MPa, impact toughness ≥ 20 J/cm² | |
| Alloy Types | Pure Aluminum (1xxx Series) | 1060, 1100 (99.6%/99.0% Al) | Electrical conductors, heat exchangers, decorative applications | High conductivity, good corrosion resistance, low strength |
| Non-Heat-Treatable Alloys (3xxx, 5xxx) | 3003 (Mn), 5052 (Mg), 5083 (Mg-Mn) | Marine parts, chemical pipelines, architectural structures | Excellent corrosion resistance, good weldability | |
| Heat-Treatable Alloys (6xxx, 7xxx) | 6061 (Al-Mg-Si), 6063 (Al-Mg-Si), 7075 (Al-Zn-Mg-Cu) | Aerospace components, automotive parts, high-load structures | High strength after heat treatment, good machinability |
Round aluminum tube's versatility makes it a staple in multiple industries, driven by its unique combination of strength, weight, and functionality:
Architectural & Construction
Transportation Industry
Mechanical & Industrial Equipment
Electrical & Electronics
Consumer Products
Medical & Pharmaceutical
Compared with traditional materials like steel, copper, and plastic tubes, round aluminum tube offers distinct competitive advantages:
| Alternative Material | Advantages of Round Aluminum Tube | Key Reason |
| Steel Tube | Lighter (1/3 weight), better corrosion resistance (no rust without coating), higher thermal conductivity, easier processing | Steel is prone to rust and heavier; aluminum's natural oxide film and low density reduce maintenance and transportation costs. |
| Copper Tube | Lower cost (1/2–1/3 of copper), lighter weight, more abundant resources, better formability for complex shapes | Copper is expensive and scarce; aluminum meets most conductivity/thermal requirements at a lower cost. |
| Plastic Tube | Higher strength, better heat resistance (withstands -40°C to 150°C vs. plastic's 60–100°C), non-toxic (no chemical leaching), recyclable | Plastic is brittle at low temperatures, degrades at high temperatures, and is non-recyclable in many cases. |
| Brass Tube | Lighter, lower cost, better corrosion resistance in marine environments, easier to recycle | Brass is heavy, contains lead (environmentally hazardous), and has higher production costs. |
