6065-T8 Aluminum
6065-T8 aluminum is 6065 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 6065-T8 aluminum to: 6000-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
68 GPa 9.9 x 106 psi
Elongation at Break
4.6 %
Fatigue Strength
100 MPa 15 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
26 GPa 3.7 x 106 psi
Shear Strength
230 MPa 33 x 103 psi
Tensile Strength: Ultimate (UTS)
390 MPa 57 x 103 psi
Tensile Strength: Yield (Proof)
350 MPa 51 x 103 psi
Thermal Properties
Latent Heat of Fusion
400 J/g
Maximum Temperature: Mechanical
180 °C 350 °F
Melting Completion (Liquidus)
640 °C 1180 °F
Melting Onset (Solidus)
590 °C 1090 °F
Specific Heat Capacity
890 J/kg-K 0.21 BTU/lb-°F
Thermal Conductivity
170 W/m-K 97 BTU/h-ft-°F
Thermal Expansion
23 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
43 % IACS
Electrical Conductivity: Equal Weight (Specific)
140 % IACS
Otherwise Unclassified Properties
Base Metal Price
11 % relative
Density
2.8 g/cm3 170 lb/ft3
Embodied Carbon
8.4 kg CO2/kg material
Embodied Energy
150 MJ/kg 66 x 103 BTU/lb
Embodied Water
1200 L/kg 140 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
17 MJ/m3
Resilience: Unit (Modulus of Resilience)
910 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
49 points
Strength to Weight: Axial
39 points
Strength to Weight: Bending
43 points
Thermal Diffusivity
67 mm2/s
Thermal Shock Resistance
18 points
Alloy Composition
| Al | 94.4 to 98.2 | |
| Bi | 0.5 to 1.5 | |
| Mg | 0.8 to 1.2 | |
| Si | 0.4 to 0.8 | |
| Fe | 0 to 0.7 | |
| Cu | 0.15 to 0.4 | |
| Zn | 0 to 0.25 | |
| Mn | 0 to 0.15 | |
| Cr | 0 to 0.15 | |
| Zr | 0 to 0.15 | |
| Ti | 0 to 0.1 | |
| Pb | 0 to 0.050 | |
| res. | 0 to 0.15 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
Handbook of Aluminum vol. 2: Alloy Production and Materials Manufacturing, George Totten and D. Scott MacKenzie (editors), 2003
EN 754-2: Aluminium and aluminium alloys. Cold drawn rod/bar and tube. Mechanical properties
Aluminum: Properties and Physical Metallurgy, John E. Hatch (editor), 1984
EN 573-3: Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products