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6005 aluminium alloy

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6005 aluminium alloy is an alloy in the wrought aluminium-magnesium-silicon family (6000 or 6xxx series). It is closely related, but not identical, to 6005A aluminium alloy. The main difference between the two alloys is that 6005 has a higher minimum composition percentage of aluminium than 6005A (while having essentially the same maximum). The most common forming method is extrusion. It can also be forged or rolled, but as a wrought alloy it is not used in casting. It cannot be work hardened, but is commonly heat treated to produce tempers with a higher strength at the expense of ductility.

Contents

Alternate names and designations include AlSiMg and A96005. The alloy and its various tempers are covered by the following standards:

  • ASTM B 221: Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes
  • EN 573-3: Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products
  • EN 755-2: Aluminium and aluminium alloys. Extruded rod/bar, tube and profiles. Mechanical properties
  • ISO 6361: Wrought Aluminium and Aluminium Alloy Sheets, Strips and Plates

    • Chemical Composition

    The alloy composition of 6005 aluminium is:

  • Aluminium: 97.5 to 99.0%
  • Chromium: 0.1% max
  • Copper: 0.1% max
  • Iron: 0.35% max
  • Magnesium: 0.4 to 0.6%
  • Manganese: 0.1% max
  • Silicon: 0.6 to 0.9%
  • Titanium: 0.1% max
  • Zinc: 0.1% max
  • Residuals: 0.15% max

    • Properties

    Typical material properties for 6005 aluminium alloy include:

  • Density: 2.70 g/cm3, or 169 lb/ft3.
  • Young's modulus: 69 GPa, or 10 Msi.
  • Ultimate tensile strength: 190 to 300 MPa, or 28 to 44 ksi.
  • Yield strength: 100 to 260 MPa, or 15 to 38 ksi.
  • Thermal Expansion: 23 μm/m-K.

    • References

    6005 aluminium alloy Wikipedia
    (Text) CC BY-SA