6063 T5 aluminum pipe is a heat-treated aluminum alloy pipe known for its excellent surface finish, good corrosion resistance, and medium strength. It is widely used in construction, architectural, and decorative applications due to its good extrudability and aesthetic appearance.
What Does T5 Mean for 6063 Extruded Aluminum Tubes?
T5 temper means the aluminum pipe is cooled from an elevated temperature shaping process (like extrusion) and then artificially aged. This heat treatment improves the mechanical strength of the material while maintaining excellent surface quality. Compared to T6 temper (which is solution heat-treated and artificially aged), T5 is more cost-effective and offers better formability, making it the standard choice for architectural profiles where extreme structural strength is not the primary requirement.
Technical Specifications of 6063 T5 Aluminum Pipe
When sourcing aluminum pipes, accurate specifications are essential for ensuring the material fits your project. Below are the standard technical specifications for our 6063 T5 supply.
| Parameter | Value |
|---|---|
| Alloy | 6063 |
| Temper | T5 |
| Standards | ASTM B221 / EN 755 / GB/T 6892 |
| Outer Diameter (OD) | 3–800 mm |
| Wall Thickness (WT) | 1–20 mm |
| Length | 0.5–50 m (custom available) |
| Surface Finish | Mill finish / anodized / powder coated / polished |
| Shape | Round / square / rectangular / custom |
Chemical Composition of 6063 T5 Aluminum Alloy Pipe
The performance of the 6063 alloy comes from its chemical makeup. It is an Al-Mg-Si (Aluminum-Magnesium-Silicon) alloy. Magnesium and silicon are the primary alloying elements, providing the perfect balance between extrudability and strength.
| Element | Content (%) |
|---|---|
| Aluminum (Al) | Balance |
| Silicon (Si) | 0.20–0.60 |
| Magnesium (Mg) | 0.45–0.90 |
| Iron (Fe) | ≤0.35 |
| Copper (Cu) | ≤0.10 |
| Manganese (Mn) | ≤0.10 |
| Zinc (Zn) | ≤0.10 |
| Chromium (Cr) | ≤0.10 |
Mechanical Properties of 6063 T5 Aluminum Pipe
| Property | Value |
|---|---|
| Tensile Strength | ≥ 150 MPa |
| Yield Strength | ≥ 110 MPa |
| Elongation | ≥ 8% |
| Hardness (Webster) | ≥ 8 HW |
Need specific dimensions or non-standard tolerances for your project?
Send your drawings or technical requirements to our engineering team. We provide custom extrusion services and will return a detailed quotation within 24 hours.
Key Properties of 6063 T5 Seamless Aluminum Pipe
Why do engineers and architects prefer 6063 T5 over other grades? Here are the key properties that make it a top choice:
- Surface Finish: Excellent. The grain structure of 6063 allows for an incredibly smooth surface right out of the extrusion press. It is widely considered the best aluminum alloy for anodizing.
- Corrosion Resistance: Good for outdoor use. It naturally forms a protective oxide layer that prevents rust and degradation, making it ideal for exterior building applications.
- Strength: Medium strength. It provides sufficient structural integrity for window frames, railings, and furniture, though it is not meant for heavy-load-bearing structural beams.
- Extrudability: Excellent. 6063 can be extruded into highly complex cross-sections and custom shapes with tight tolerances and sharp corners.
- Weldability: Good. You can weld 6063 T5 easily using TIG or MIG welding processes. The recommended filler metal is usually 4043 alloy wire.
- Machinability: Fair. While not as machinable as 2024 or 6061 T6, it can be cut, drilled, and tapped with standard metalworking tools.
Major Applications of 6063 T5 Aluminum Round Pipe
Because of its unique combination of aesthetic appeal and medium strength, 6063 T5 is often referred to as "architectural aluminum." Its major applications include:
- Architectural Structures: Used in curtain walls, building facades, and roofing systems.
- Window and Door Frames: The standard material for commercial and residential window framing due to its smooth finish and weather resistance.
- Handrails and Railings: Frequently used in staircases, balcony guardrails, and pedestrian barriers.
- Furniture and Decorative Tubing: Used in indoor and outdoor furniture frames, retail display racks, and lighting fixtures.
- Construction and Structural Profiles: Lightweight framing, partitions, and temporary structures.
- Heat Sinks: Due to its excellent thermal conductivity, 6063 is frequently extruded into custom heat sink profiles for electronics and LED lighting.
6063 T5 vs 6061 T6 Structural Aluminum Pipe
Buyers often hesitate between 6063 T5 and 6061 T6. While both are 6000-series alloys, they serve different purposes. 6061 is focused on strength, whereas 6063 is focused on appearance and extrudability.
| Property | 6063 T5 | 6061 T6 |
|---|---|---|
| Surface Finish | Excellent (smooth, ideal for anodizing) | Moderate (slightly rougher) |
| Yield Strength | ≥110 MPa | ≥276 MPa |
| Tensile Strength | ≥150 MPa | ≥310 MPa |
| Extrudability | Excellent (complex shapes possible) | Good (mainly simple shapes) |
| Corrosion Resistance | Good | Good |
| Weldability | Excellent | Good |
| Primary Application | Architectural, decorative profiles | Structural, mechanical components |
If your project is visible to end-users and requires a flawless anodized finish (like a storefront or furniture), choose 6063 T5. If your project is a hidden structural frame that must support heavy weight (like a bridge component or machine frame), choose 6061 T6.
Fabrication and Processing of 6063 T5 Aluminum Square Tube
Understanding how the material behaves during processing helps prevent manufacturing defects.
- Bending and Forming: 6063 T5 has excellent formability. It can be bent into curves using rotary draw benders or roll benders. Because it is in the T5 temper, it is less brittle than T6, reducing the risk of cracking on the outer radius of the bend.
- Anodizing and Powder Coating: This alloy accepts clear, bronze, and black anodizing exceptionally well, resulting in a consistent, uniform color without dark spots. Powder coating also adheres strongly to its surface, providing a durable colored finish for architectural use.
- Cutting: Standard carbide-tipped circular saws cut through 6063 T5 cleanly. Using proper cutting fluid prevents aluminum from sticking to the blade and ensures a burr-free edge.
Quality Control and Packaging for Export
A common pain point for buyers importing aluminum pipes is transport damage. Scratches, dents, or water stains can ruin decorative aluminum.
To prevent this, high-quality export packaging is mandatory. 6063 T5 aluminum tubes should be separated by kraft paper or pearl cotton (EPE) to prevent metal-to-metal friction. The bundles are then wrapped in waterproof plastic film and securely strapped to wooden pallets or packed inside wooden crates. This ensures the pipes arrive at your facility with their mill finish completely intact, ready for immediate use or surface treatment.
How to Specify 6063 T5 Aluminum Pipe in Your Purchase Order
To get an accurate quote and avoid misunderstandings with your supplier, ensure your RFQ (Request for Quote) includes the following details:
- Alloy and Temper (e.g., 6063 T5).
- Shape (Round, square, or attach a custom drawing).
- Dimensions (Outer Diameter and Wall Thickness).
- Length per piece (e.g., 5.8 meters to fit a 20ft container).
- Surface Finish (Mill finish, clear anodized, etc.).
- Total Quantity (in pieces or metric tons).
Why Choose GNEE?
GNEE is a Chinese supplier providing 6063 aluminum pipes in multiple sizes and surface finishes. The company supports customized dimensions, anodizing options, and stable export supply for construction and industrial applications.
We do not just sell standard sizes; we offer a complete supply chain solution. Whether you are an architectural firm needing hundreds of tons for a skyscraper project or a fabrication shop looking for reliable, straight, and clean aluminum tubing, our factory ensures strict quality control. We manage standard tolerances, provide material test reports (MTC), and guarantee secure packaging for sea freight.
Looking for a reliable 6063 T5 aluminum pipe supplier?
We maintain a large inventory of standard sizes and offer fast production times for custom extrusions. Email us your specifications today to receive our latest price list and check current lead times.
