5454 aluminium alloy

5454 aluminium–magnesium alloy is an alloy in the wrought aluminium-magnesium family (5000 or 5xxx series). It is closely related to 5154 aluminium alloy. As an aluminium-magnesium alloy, it combines moderate-to-high strength with excellent weldability. Like 5154, 5454 aluminium is commonly used in welded structures such as pressure vessels and ships. As a wrought alloy, it can be formed by rolling, extrusion, and forging (although forging is not common), but not casting. It can be cold worked to produce tempers with a higher strength but a lower ductility. It is generally not clad.[1]

Alternate names and designations include 3.3537, N51, and A95454. The alloy and its various tempers are covered by the following standards:[2]

  • ASTM B 209: Standard Specification for Aluminium and Aluminium-Alloy Sheet and Plate
  • ASTM B 221: Standard Specification for Aluminium and Aluminium-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes
  • ASTM B 547: Standard Specification for Aluminium and Aluminium-Alloy Formed and Arc-Welded Round Tube
  • ISO 6361: Wrought Aluminium and Aluminium Alloy Sheets, Strips and Plates

Chemical composition

The alloy composition of 5454 aluminium is:[2]

Properties

Typical material properties for 5454 aluminium alloy include:[2]

  • Density: 2.69 g/cm3, or 168 lb/ft3.
  • Young's modulus: 70 GPa, or 10 Msi.
  • Electrical conductivity: 34% IACS.
  • Ultimate tensile strength: 240 to 300 MPa, or 35 to 44 ksi.
  • Thermal Conductivity: 130 W/m-K.
  • Thermal Expansion: 22.3 μm/m-K.

References
  1. Marks' Standard Handbook for Mechanical Engineers, 8th Ed., McGraw Hill, pp. 6-50 to 6-57
  2. 5454 (3.3537, N51, A95454) Aluminum. Retrieved on 2014-12-04.

Aluminium alloy table
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