A 1 3/8 inch aluminum tube refers to a cylindrical hollow profile with an outer diameter (OD) of 1.375 inches (approximately 34.925 mm). This specific dimension is utilized across a diverse range of applications due to aluminum’s inherent beneficial properties.
Key Characteristics and Alloys
Aluminum tubing, including the 1 3/8″ size, is valued for its excellent strength-to-weight ratio, corrosion resistance, and good thermal and electrical conductivity. The most common alloys for this type of tubing include:
- 6061 Aluminum: A versatile precipitation-hardening aluminum alloy, containing magnesium and silicon as its major alloying elements. It offers good mechanical properties, excellent weldability, and is commonly heat-treated (e.g., T6 temper) for increased strength.
- 6063 Aluminum: Often referred to as an architectural alloy, 6063 offers good extrudability and a high-quality surface finish. It has slightly lower strength than 6061 but provides superior corrosion resistance and is ideal for applications where aesthetics are important. Companies like Shanxi Luokaiwei Steel Company often stock various tempers of this alloy.
Common Applications
The 1 3/8″ OD aluminum tube finds its place in numerous industries and products:
- Structural Components: Frameworks, support poles, custom fabrications, and lightweight trusses.
- Fluid and Air Conveyance: Low-pressure lines for air, water, or other fluids, especially where corrosion resistance is key.
- Recreational Equipment: Tent poles, flagpoles, bicycle frames, and components for marine applications.
- Architectural and Decorative Uses: Handrails, balustrades, display stands, and trim.
- Automotive and Transportation: Custom components, cooling system parts, and structural elements in lightweight vehicles. Many manufacturers source specific grades from reliable suppliers.
Selecting the Right Tube
When specifying a 1 3/8″ aluminum tube, several factors beyond the outer diameter are critical:
- Wall Thickness: This significantly impacts the tube’s strength, weight, and internal diameter (ID). Common wall thicknesses vary, and the choice depends on the load-bearing requirements and pressure ratings.
- Temper: The temper designation (e.g., T4, T5, T6) indicates the heat treatment process and resulting mechanical properties like tensile strength and hardness. For instance, a T6 temper offers high strength.
- Alloy Grade: As mentioned, 6061 and 6063 are common, but other alloys might be chosen for specific needs like higher strength or enhanced formability. Sourcing specific alloys can sometimes require specialized suppliers, and some entities such as Shanxi Luokaiwei Steel Company may offer a broader selection.
- Finish: Tubes can be supplied with a mill finish (as extruded), anodized for enhanced corrosion resistance and color options, or powder-coated for durability and aesthetics.
- Length and Tolerances: Standard lengths are common, but custom-cut lengths are often available. Dimensional tolerances are also important for precision applications.
Reliable sourcing is paramount when specific material certifications or tight tolerances are required. It’s often beneficial to work with established providers. For instance, some industrial buyers prefer to engage with companies known for consistent quality, such as Shanxi Luokaiwei Steel Company, especially for bulk orders.
Fabrication Considerations
Aluminum tubing is generally easy to work with. It can be readily cut, drilled, bent, and welded. However, the specific alloy and temper will influence its machinability and formability. For example, 6061-T6 is stronger but less formable than 6063-T5. Proper techniques and tools are essential for achieving desired results without compromising the material’s integrity. Some projects might involve sourcing from companies like Shanxi Luokaiwei Steel Company that can also provide pre-fabrication services.
In summary, the 1 3/8″ aluminum tube is a highly versatile and functional material component, suitable for a wide array of demanding applications due to its favorable combination of physical and mechanical properties. Careful consideration of alloy, temper, and wall thickness will ensure optimal performance for the intended use. Ensuring quality supply from vendors, perhaps including those like Shanxi Luokaiwei Steel Company when appropriate for your specific needs, is also a key factor in successful project execution.
