Aluminum comes in a range of different alloys, each with different chemical compositions and characteristics suitable for various applications. Aluminum alloy 6005 is ideal for applications that require high corrosion and moderate strength. At Tri-State, we offer aluminum alloy 6005 and other aluminum alloys to suit your unique applications. Aluminum alloy 6005 possesses many desirable properties applicable to a variety of applications and industries.

Aluminum Alloy 6005 vs. Aluminum Alloy 6005A

Aluminum alloys in the 6000 series have magnesium and silicon as their main elements and are strengthened through heat treatment. This combination improves corrosion resistance, formability, strength, and weldability, making them suitable for many different applications.

When comparing Aluminum Alloy 6005 and 6005A, they differ in chemical composition but are similar in some applications. For instance, Aluminum 6005 has a high silicon amount, reducing its melting point but improving its extrudability.

Aluminum alloy 6005A also has more chromium to reduce the risk of stress corrosion and increase its toughness. It also has extra manganese to improve its extrudability and strength.

Though both alloys have excellent bending properties, they aren’t ideal for applications that experience frequent overloading or impact. You should also note that these two alloys perform poorly in producing thin-walled, complicated shapes.

Finally, these two alloys are easy to braze and weld in commercial applications. However, the heat from the welding reduces its strength. Additional characteristics include good corrosion resistance, enhanced finishing properties, and compatibility with anodizing methods such as dying, hard coating, and coloring.

Aluminum Alloy 6005 vs. Aluminum Alloy 6061

Aluminum alloy 6005 has similar characteristics to 6061 when produced through a -T5 temper. They have identical yield and tensile strength and offer better machinability than the Aluminum alloy 6063-T6. Despite these similarities, Alloy 6005A outperforms 6061 due to its improved extrudability and surface appearance.


Aluminum alloy 6005 is commonly used in the following applications:

  • Ladder structures
  • Handrail tubing
  • Automotive connector stock
  • Seamless and structural tubing
  • Structural members

6005 is an ideal aluminum alloy for different industries, such as the manufacture of automobiles, trucks, trailers, rail components, marine components, platforms, structures, ladders, and more.

Chemical Composition

Aluminum alloy 6005 is made up of different metals with the following chemical composition:

  • Aluminum content from 97.5% to 99.0%
  • Maximum of 0.1% of chromium
  • Maximum of 0.1% of copper
  • Maximum of 0.35% of iron
  • Maximum of 0.4% to 0.6% of magnesium
  • Maximum of 0.1% of manganese
  • Maximum of 0.6% to 0.9% of silicon
  • Maximum of 0.1% of titanium
  • Maximum of 0.1% of zinc
  • Maximum of 0.15% of residual


Aluminum alloy 6005 has the following typical material properties:

  • A density of 2.7 g/cm3
  • A Young’s modulus of 10 Msi or 69 GPa
  • Ultimate tensile strength of 28 to 44 ksi or 190 to 300 MPa
  • Yield strength of 100 to 260 MPa
  • Thermal expansion of 23 um/m-K

Aluminum Alloy 6005 at Tri-State Aluminum

Aluminum alloy 6005 offers better properties for various applications than other aluminum alloys. If you need an aluminum alloy that matches your needs, Tri-State Aluminum is here to help. We’re an exclusive aluminum manufacturing company offering services that include design, extrusion, extruding, and finishing. Our extrusion capabilities are up to 18” and circle size 1. Contact us today and learn how we can help you get the best aluminum alloy for your use.