2219-T8 Aluminum
2219-T8 aluminum is 2219 aluminum in the T8 temper. To achieve this temper, the metal is solution heat-treated, strain hardened, then artificially aged. The graph bars on the material properties cards below compare 2219-T8 aluminum to: 2000-series alloys (top), all aluminum alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elastic (Young's, Tensile) Modulus
72 GPa 10 x 106 psi
Elongation at Break
8.9 %
Fatigue Strength
110 MPa 15 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
27 GPa 3.9 x 106 psi
Shear Strength
270 MPa 39 x 103 psi
Tensile Strength: Ultimate (UTS)
450 MPa 66 x 103 psi
Tensile Strength: Yield (Proof)
330 MPa 49 x 103 psi
Thermal Properties
Latent Heat of Fusion
390 J/g
Maximum Temperature: Mechanical
230 °C 450 °F
Melting Completion (Liquidus)
640 °C 1190 °F
Melting Onset (Solidus)
540 °C 1010 °F
Specific Heat Capacity
870 J/kg-K 0.21 BTU/lb-°F
Thermal Conductivity
130 W/m-K 73 BTU/h-ft-°F
Thermal Expansion
22 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
30 % IACS
Electrical Conductivity: Equal Weight (Specific)
86 % IACS
Otherwise Unclassified Properties
Base Metal Price
11 % relative
Calomel Potential
-730 mV
Density
3.1 g/cm3 200 lb/ft3
Embodied Carbon
8.2 kg CO2/kg material
Embodied Energy
150 MJ/kg 66 x 103 BTU/lb
Embodied Water
1130 L/kg 140 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
37 MJ/m3
Resilience: Unit (Modulus of Resilience)
780 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
44 points
Strength to Weight: Axial
40 points
Strength to Weight: Bending
42 points
Thermal Diffusivity
47 mm2/s
Thermal Shock Resistance
20 points
Alloy Composition
| Al | 91.5 to 93.8 | |
| Cu | 5.8 to 6.8 | |
| Mn | 0.2 to 0.4 | |
| Zr | 0.1 to 0.25 | |
| Fe | 0 to 0.3 | |
| Si | 0 to 0.2 | |
| V | 0.050 to 0.15 | |
| Ti | 0.020 to 0.1 | |
| Zn | 0 to 0.1 | |
| Mg | 0 to 0.020 | |
| res. | 0 to 0.15 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASTM B209: Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate
Aluminum Standards and Data, Aluminum Association Inc., 2013
ASM Specialty Handbook: Aluminum and Aluminum Alloys, J. R. Davis (editor), 1993
EN 573-3: Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products