5454 aluminium alloy
5454aluminium–magnesium alloyis an alloy in the wrought aluminium-magnesium family (5000 or 5xxx series). It is closely related to5154 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 andships.As a wrought alloy, it can be formed by rolling, extrusion, and forging (although forging is not common), but not casting. It can becold workedto 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
[edit]The alloy composition of 5454 aluminium is:[2]
- Aluminium:94.5 to 97.1%
- Chromium:0.05 to 0.20%
- Copper:0.1% max
- Iron:0.4% max
- Magnesium:2.4 to 3.0%
- Manganese:0.5 to 1.0%
- Silicon:0.25% max
- Titanium:0.2% max
- Zinc:0.25% max
- Residuals: 0.15% max
Properties
[edit]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
[edit]- ^Marks' Standard Handbook for Mechanical Engineers, 8th Ed., McGraw Hill, pp. 6-50 to 6-57
- ^abc5454 (3.3537, N51, A95454) Aluminum.Retrieved on 2014-12-04.