Al 6063-T5

Aluminum Alloy 6063-T5 Datasheet

Chemical Composition:

ElementPercentage
Aluminum (Al)97.3% min
Silicon (Si)0.20 – 0.60%
Iron (Fe)0.35% max
Copper (Cu)0.10% max
Manganese (Mn)0.10% max
Magnesium (Mg)0.45 – 0.90%
Chromium (Cr)0.10% max
Zinc (Zn)0.10% max
Titanium (Ti)0.10% max
Other0.05% each max

Physical Properties:

  • Density: 2.70 g/cm³
  • Melting Point: 600°C (1112°F)
  • Thermal Conductivity: 201 W/(m·K)
  • Electrical Conductivity: 33.4 MS/m
  • Specific Heat: 896 J/(kg·K)

Mechanical Properties:

PropertyValue
Tensile Strength186 MPa (27 ksi)
Yield Strength145 MPa (21 ksi)
Elongation at Break12%
Hardness (Brinell)60

Thermal Properties:

  • Coefficient of Thermal Expansion: 23.5 x 10^(-6) /°C
  • Thermal Resistivity: 0.000031 m²·K/W

Processing Properties:

  • Heat Treatment: T5 – Artificial Aging after Cooling from an Elevated Temperature Shaping Process
  • Weldability: Good; Can be easily welded using common methods
  • Machinability: Average; Machining is possible with standard techniques

Corrosion Resistance:

  • Good resistance to atmospheric corrosion, but less resistant than 6061.

Typical Applications:

  1. Architectural Extrusions
  2. Window Frames and Door Frames
  3. Structural and Architectural Components
  4. Pipe and Tube for Irrigation Systems
  5. Heat Sinks and Radiators

Aluminum Alloy 6063-T5 offers several advantages, making it a popular choice for various applications, especially in the field of architectural and structural extrusions. Here are some key advantages of this alloy:

  1. Excellent Formability:
    • 6063-T5 has good formability, allowing it to be easily extruded into complex shapes. This property makes it well-suited for the production of intricate profiles used in architectural applications.
  2. High Corrosion Resistance:
    • This alloy demonstrates good resistance to atmospheric corrosion. The presence of a protective oxide layer on the surface contributes to its durability in various environmental conditions.
  3. Versatility in Finishing:
    • Aluminum Alloy 6063-T5 is well-suited for various finishing techniques, including anodizing, painting, and powder coating. This versatility allows for a wide range of aesthetic options and helps enhance its resistance to wear and corrosion.
  4. Lightweight and High Strength:
    • Aluminum is inherently lightweight, and 6063-T5 maintains a favorable strength-to-weight ratio. This combination makes it suitable for applications where a balance between structural strength and overall weight is crucial.
  5. Ease of Machining:
    • The alloy has good machinability, allowing for precision machining and fabrication processes. This is advantageous in applications where intricate designs and tight tolerances are required.
  6. Thermal Conductivity:
    • Aluminum Alloy 6063-T5 has good thermal conductivity, making it suitable for heat sinks and other applications where efficient heat dissipation is important.
  7. Cost-Effective:
    • Aluminum, in general, is often more cost-effective than other metals. The abundance of aluminum ore and the energy-efficient extraction process contribute to its economic advantage.
  8. Recyclability:
    • Aluminum is highly recyclable, and the recycling process requires significantly less energy compared to primary aluminum production. This environmental sustainability aspect is increasingly important in many industries.
  9. Wide Range of Applications:
    • Due to its combination of properties, 6063-T5 is used in a variety of applications, including architectural and structural components, window and door frames, heat sinks, and various extruded profiles.
  10. Resistance to Corrosion in Mild Industrial and Marine Environments:
    • While not as corrosion-resistant as some other aluminum alloys like 6061, 6063-T5 still offers good resistance to corrosion in mild industrial and marine environments.

These advantages collectively make Aluminum Alloy 6063-T5 a popular and versatile material across industries, particularly in applications where lightweight, corrosion resistance, and ease of fabrication are essential.