Precision 6061 T6 T651 Aluminum Hex Tube Hollow Bar for Structural & CNC
6061-T651 hollow aluminum hex tube bar is a hexagonal aluminum alloy bar with a precision internal bore, offering an ideal balance of strength, lightweight design, and machinability. Produced from heat-treated and stress-relieved 6061 aluminum, it provides excellent dimensional stability, corrosion resistance, and consistent performance during machining. Specified by distance across flats (AF) and inner diameter (ID), 6061-T651 hollow hex bars are available in custom sizes and are widely used in drone frames, cable and conduit carriers and hydraulic systems.
Specifications of 6061 Hexagon Tube
Tempers:T6 / T651
Shape:Hexagonal tube / Hollow hexagon bar with inner bore
Dimensions:
Outer size (across flats): 10 mm – 200 mm
Wall thickness: 2 mm – 50 mm
Length: Standard 3m / 6m or custom cut-to-size
Standards:
ASTM B221
EN 573 / EN 755
Chemical Composition of 6061 Extrude Hex Tubing
| Element | Composition (%) |
|---|---|
| Aluminum (Al) | 95.85 – 98.56 |
| Magnesium (Mg) | 0.8 – 1.2 |
| Silicon (Si) | 0.4 – 0.8 |
| Iron (Fe) | 0.0 – 0.7 |
| Copper (Cu) | 0.15 – 0.4 |
| Zinc (Zn) | 0.0 – 0.25 |
| Titanium (Ti) | 0.0 – 0.15 |
| Manganese (Mn) | 0.0 – 0.15 |
| Chromium (Cr) | 0.04 – 0.35 |
| Residuals | 0.0 – 0.15 |
Mechanical Properties 6061 Aluminum Hex Tube
| Property | Value |
|---|---|
| Ultimate Tensile Strength | 310 MPa (45,000 psi) |
| Yield Tensile Strength | 275 MPa (40,000 psi) |
| Fatigue Strength | 96.5 MPa (14,000 psi) |
| Shear Strength | 207 MPa (30,000 psi) |
| Hardness | 95 Brinell |
| Elongation at Break | 12% (≥ 1.6 mm thickness) |
| Modulus of Elasticity | 68.9 GPa (10,000 ksi) |
Aluminum Hexagon Hollow Bars 6061 T6 T651 Advantages:
High dimensional accuracy and straightness
Stress-relieved material (T6 / T651 available)
Tight tolerance control for machining
Clean internal bore and external edges
Reliable quality with full inspection process
Processing & Custom Services
Shenzhen Chinalcometal offer value-added services to support your production:
Precision cutting (cut-to-length)
CNC pre-machining
Surface treatments (anodizing, polishing)
Custom size extrusion and sourcing
Applications of 6061 Aluminum Hex Tube Extrusion
Precision CNC machined parts
Mechanical connectors and couplings
Structural frames and supports
Automotive lightweight components
Aerospace auxiliary structures
Decorative and architectural elements
