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High-Quality Aluminum Tubes and Pipes from China Factory - Leading Suppliers of Extruded and Seamless Solutions
Detailed Description of Aluminum Tubes
Aluminum tubing is made by forcing a heated aluminum billet through a form or die in order to create some common or exact cross-section shape. This extrusion method allows for complex shapes and accurate profiles.
Alloy 6063
Excellent surface finish, ideal for anodized finishes — perfect for architectural applications.
Alloy 6061
Greater structural strength than 6063, suited for load-bearing and high-performance applications.
Natural Corrosion Resistance
A passive aluminum oxide layer forms on exposure to air, providing durable protection without coatings.
Key Parameters for Aluminum Tubes
| Parameter | Details |
|---|---|
| Manufacturing Process | Extrusion (most common), Drawing (for seamless precision tubes) |
| Alloy & Temper | 6063-T5/T6, 6061-T6, 6082-T6, 5083, 3003 |
| Standards | ASTM B221 (Extruded), ASTM B210 (Drawn Seamless), EN 755 |
| Size Range (OD) | 10mm – 400mm, custom shapes and sizes available |
| Wall Thickness (WT) | 0.8mm – 50mm |
| Length | Typically 6m, can be cut to custom lengths |
| Surface Finish | Mill Finish (as-extruded), Anodized (Clear, Bronze, Black), Powder Coated, Polished |
| Shapes | Round, Square, Rectangular, Oval, Custom Profiles |
Frequently Asked Questions
What is the difference between 6061 and 6063 aluminum tubes?
6061 aluminum offers higher structural strength and is commonly used in load-bearing and mechanical applications. 6063 aluminum provides a superior surface finish and is preferred for architectural and decorative uses, especially where anodizing is required.
Are aluminum tubes naturally corrosion resistant?
Yes. Aluminum naturally forms a thin, stable aluminum oxide layer when exposed to air. This passive layer acts as a self-protecting barrier that prevents further oxidation, making aluminum tubes highly durable in various environments without requiring additional coatings.
What surface finishes are available for aluminum tubes?
Aluminum tubes are available in several surface finish options including Mill Finish (as-extruded natural surface), Anodized (Clear, Bronze, or Black), Powder Coated (various colors), and Polished finishes, depending on the application requirements.
What size ranges are available for aluminum tubes?
Standard aluminum tubes are available with an outer diameter (OD) ranging from 10mm to 400mm, and wall thicknesses from 0.8mm to 50mm. Custom shapes and sizes can also be produced to meet specific project requirements.
What international standards do aluminum tubes comply with?
Aluminum tubes are manufactured in compliance with internationally recognized standards including ASTM B221 for extruded tubes, ASTM B210 for drawn seamless tubes, and EN 755 for European specifications, ensuring consistent quality and dimensional accuracy.
Can aluminum tubes be ordered in custom lengths and profiles?
Yes. While the standard length is typically 6 meters, aluminum tubes can be cut to custom lengths upon request. In addition to standard round, square, rectangular, and oval profiles, custom cross-section shapes can be produced using tailored extrusion dies.