Aluminum alloy 6105 is a less common wrought alloy from the aluminum-magnesium-silicon family or 6xxx series. The alloy is formed by extrusion, and it is usually found in heated form. Aluminum 6105 is mainly composed of magnesium and silicon and can be used to make other wrought products.

Alloy 6105 comes in two main temper designations: 6105-T1 and 6105-T5, with T-1 being the most ideal for bending. T1 is naturally aged, whereas T5 is artificially aged until it reaches the required mechanical properties. These alloys can be brazed or welded through numerous commercial methods and are compatible with various anodizing processes, including clear, clear and color, and hardcoat.

Learn more about the applications and chemical composition of aluminum 6105, as well as how it compares to similar alloys.

Aluminum Alloy 6105 vs. Aluminum Alloy 6061

Aluminum 6105 and aluminum 6061 are very similar, except 6105 contains more silicon. Compared to alloy 6061, alloy 6105 is more preferred especially for complex shapes because it extrudes easily and is less sensitive to quenching. When manufactured in T5 temper designation, alloy 6105 offers a similar yield strength and tensile strength as 6061-T6.

Applications of Aluminum 6105

Alloy 6105 has numerous industrial applications due to its good corrosion resistance and medium strength. It is best for applications requiring moderate strength or where there is less impact and overloading, including:

  • Ladders
  • Seamless structural tubing
  • Automotive connector stock
  • Handrail tubing

Chemical Composition

Aluminum 6105 is composed of the following elements:

  • Aluminum: 97.2 to 99.0%
  • Manganese: 0.1% max
  • Silicon: 0.6 to 1.0%
  • Titanium: 0.1% max
  • Chromium: 0.1% max
  • Copper: 0.1% max
  • Iron: 0.35% max
  • Magnesium: 0.45 to 0.8%
  • Zinc: 0.1% max
  • Residuals: 0.15% max

Here are the physical properties of aluminum 6105:

  • Density: 2.69 g/cm³ (168 lb/ft³)
  • Yield strength: 120 to 260 MPa (17 to 38 ksi)
  • Ultimate tensile strength: 190 to 270 MPa (28 to 39 ksi)
  • Young’s modulus: 70 GPa (10 Msi)
  • Thermal expansion: 21.8 μm/m-K
  • Melting point: 599-649 °C (1110 to 1200 °F)

Aluminum Alloy 6105 Extrusions From Tri-State Aluminum

Tri-State Aluminum is a reliable supplier of standard and custom extruded aluminum alloy 6105 profiles. We will help you with design, fabrication, cutting, extrusion, painting, anodizing, packaging, labeling, and shipping. Not only do these services help cut handling and shipping costs, but they also allow you to get your product to market quickly.

Contact us today to learn more about aluminum alloy 6105, or request a quote to start your order.

This is for general/informational purposes only: