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2219

AMS QQ-A-250/30 / AlCu6Mn / 2219 / T351

化学性质 % 值
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
物理特性
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
机械性能
Proof Strength2800 g/cm³
Yield Strength640 °C
Shear Strength22.8 x 10^-6 /K
Elongation A50 mm73000 GPa
Hardness134 - 135 W/m.K

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

 

ALLOY DESIGNATIONS

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

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

 

TEMPER TYPES

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

 

SUPPLIED FORMS

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

  • Plate
  • Sheet
  • Round Bar / Bar
  • Tube / Extrusions
交货:
机械性能
厚度 (mm) 证明力量 (Min.) 屈服强度 (Min.) Uzama %
Over 6.3 up to & incl. 25.4 317 MPa 427 MPa %8
Over 25,4 up to & incl. 50,8 317 MPa 427 MPa %7