• Dalle

  • Tôle

  • Barre ronde

  • Tube / Extrusion / Profil


AMS QQ-A-250/30 / AlCu6Mn / 2219 / T31

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)0,00 - 0,15
Iron (Fe)0,00 - 0,30
Zinc (Zn)0,00 - 1,00
Aluminium (Al)Balance
Physical Properties Value
Density2.84 g/cm³
Melting Point543 °C
Thermal Expansion22 x 10^-6 /K
Modulus of Elasticity74 GPa
Thermal Conductivity170 W/m.K
Electrical Resistivity%44 IACS
Mechanical Properties Value
Proof Strength91 MPa
Yield Strength180 MPa
Elongation A50 mm%15
Modulus of Elasticity74 GPa

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



Aluminium alloy AMS QQ-A-250/30, 2219 has similarities to the following standard designations and specifications:

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

ISO AlCu6Mn, AMS 4095



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



2219 is supplied in plate, sheet, bar and extrusions.

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