2219 aluminium alloy is an alloy in the wrought aluminium-copper family (2000 or 2xxx series). It can be heat-treated to produce tempers with a higher strength but a lower ductility. The aluminium-copper alloys have high strength, but are generally less corrosion resistant and harder to weld than other types of aluminium alloys. To compensate for the lower corrosion resistance, 2219 aluminium can be clad in a commercially pure alloy such as 1050 or painted. This alloy is commonly formed by both extrusion and forging, but is not used in casting.

Alternate designations include AlCu6Mn and A92219. It is described in the following standards:

·         ASTM B 209: Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate

·         ASTM B 211: Standard Specification for Aluminum and Aluminum-Alloy Bar, Rod, and Wire

·         ASTM B 221: Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes

·         ISO 6361: Wrought Aluminium and Aluminium Alloy Sheets, Strips and Plates

The alloy composition of 2219 aluminium is:

·         Aluminium: 91.5 to 93.8%

·         Copper: 5.8 to 6.8%

·         Iron: 0.3% max

·         Magnesium: 0.02% max

·         Manganese: 0.2 to 0.4%

·         Silicon: 0.2% max

·         Titanium: 0.02 to 0.10%

·         Vanadium: 0.05 to 0.15%

·         Zinc: 0.1% max

·         Zirconium: 0.10 to 0.25%

·         Residuals: 0.15% max

 

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Technical Data Sheet

 

Aluminium Alloy 2219 is a high strength alloy which combines good machinability and good mechanical properties. 2219 is useful over a temperature range of -452°F to 600°F, is readily weldable and has good fracture toughness. In the T8 condition it is resistant to stress corrosion cracking. 

Aluminium 2219 is typically used in a range of aerospace applications such as high temperature structural applications including space booster and fuel tanks.

Typical Mechanical Properties

Aluminium 2219 - Bar / Extrusions

Aluminium 2219 - Sheet / Plater (Bare)

Aluminium 2219 - Sheet / Plater (Clad) Temper T81 / T851

 

 

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Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.