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AMS 4068 / AlCu6Mn / 2219 / T3511

Chemical Properties % Value
Silicon (Si)0,00 - 0,20
Manganese (Mn)0,20 - 0,40
Magnesium (Mg)0,00 - 0,02
Copper (Cu)5,80 - 6,80
Titanium (Ti)0,02 - 0,10
Iron (Fe)0,00 - 0,30
Zinc (Zn)0,00 - 0,10
Aluminium (Al)Balance
Physical Properties Value
Density2.85 g/cm³
Melting Point543 °C
Thermal Expansion22 x 10^-6 /K
Modulus of Elasticity74 GPa
Thermal Conductivity120 W/m.K
Electrical Resistivity%30 IACS
Mechanical Properties Value
Proof Strength300 MPa
Yield Strength360 MPa
Elongation A50 mm%8
Modulus of Elasticity74 GPa

An alloy developed for elevated temperature strength that has good weldability and resistance to stress corrosion.



Aluminium alloy 2219 has similarities to the following standard designations and specifications:

AMS QQ-A-250/30,  Alloy 2219,  UNS A92219; ISO AlCu6Mn



AMS QQ-A-250/30 is supplied in a wide range of tempers:
T351 is intended to provide material with low residual stresses and thus minimal distortion during machining, but does not provide optimal corrosion resistance.

  • O - Soft
  • T31 - Solution heat treated, cold worked and naturally aged
  • T37 - Solution heat treated and naturaly aged to a substantially stable condition
  • T62 - Solution heat treated then artificially aged by the user
  • T81 - Solution heat treated, cold worked then artificially aged
  • T87 - Solution heat treated, cold worked then artificially aged
  • T351 - Solution heat treated then stress relieved by stretching. Equivalent to T4 condition.
  • T851 - Solution heat treated then stress relieved by stretching then artificially aged.
  • F



AMS QQ-A-250/30  is supplied in plate and sheet

  • Plate
  • Sheet
  • Tube / Extrusions
  • Round Bar / Bar