Aluminum 2219-O

Subcategory: 2000 Series Aluminum Alloy; Aluminum Alloy; Metal; Nonferrous Metal

Close Analogs:

Composition Notes:
This designation is considered the sole original alloy for this alloy family.
Aluminum content reported is calculated as remainder.
Composition information provided by the Aluminum Association and is not for design.

Key Words: UNS A92219; ISO AlCu6Mn; Aluminium 2219-O; AA2219-O

Component   Wt. %
Al91.5 - 93.8 
Cu5.8 - 6.8 
FeMax 0.3 
MgMax 0.02 
Component   Wt. %
Mn0.2 - 0.4 
Other, eachMax 0.05 
Other, totalMax 0.15 
SiMax 0.2 
Component   Wt. %
Ti0.02 - 0.1 
V0.05 - 0.15 
ZnMax 0.1 
Zr0.1 - 0.25 

Material Notes:
Data points with the AA note have been provided by the Aluminum Association, Inc. and are NOT FOR DESIGN.

Physical PropertiesMetricEnglishComments
Density2.84 g/cc0.103 lb/in AA; Typical

Mechanical Properties
Hardness, Brinell4646 500 kg load with 10 mm ball. Calculated value.
Ultimate Tensile Strength172 MPa25000 psi AA; Typical
Tensile Yield Strength75.8 MPa11000 psi AA; Typical
Elongation at Break18 %18 % AA; Typical; 1/16 in. (1.6 mm) Thickness
Modulus of Elasticity73.1 GPa10600 ksi AA; Typical; Average of tension and compression. Compression modulus is about 2% greater than tensile modulus.
Poisson's Ratio0.330.33 Estimated from trends in similar Al alloys.
Shear Modulus27 GPa3920 ksi Estimated from similar Al alloys.
Shear Strength106 MPa15400 psi Calculated value.

Electrical Properties
Electrical Resistivity3.99e-006 ohm-cm3.99e-006 ohm-cm AA; Typical at 68F

Thermal Properties
CTE, linear 68F22.3 m/m-C12.4 in/in-F AA; Typical; Average over 68-212F range.
CTE, linear 250C24.1 m/m-C13.4 in/in-F Estimated from trends in similar Al alloys. 20-300C.
Specific Heat Capacity0.864 J/g-C0.207 BTU/lb-F 
Thermal Conductivity171 W/m-K1190 BTU-in/hr-ft-F AA; Typical at 77F
Melting Point543 - 643 C1010 - 1190 F AA; Typical range based on typical composition for wrought products 1/4 inch thickness or greater. Eutectic melting is not eliminated by homogenization.
Solidus543 C1010 F AA; Typical
Liquidus643 C1190 F AA; Typical

Processing Properties
Annealing Temperature413 C775 F 
Solution Temperature535 C995 F 
Aging Temperature163 - 191 C325 - 375 F from 18 to 36 hr at temperature

References for this datasheet.

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