7005-T6 Aluminum
7005-T6 aluminum is 7005 aluminum in the T6 temper. To achieve this temper, the metal is solution heat-treated and artificially aged until it meets standard mechanical property requirements. The graph bars on the material properties cards below compare 7005-T6 aluminum to: 7000-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
70 GPa 10 x 106 psi
Elongation at Break
12 %
Fatigue Strength
130 MPa 19 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
26 GPa 3.8 x 106 psi
Shear Strength
210 MPa 31 x 103 psi
Tensile Strength: Ultimate (UTS)
380 MPa 55 x 103 psi
Tensile Strength: Yield (Proof)
310 MPa 45 x 103 psi
Thermal Properties
Latent Heat of Fusion
380 J/g
Maximum Temperature: Mechanical
200 °C 400 °F
Melting Completion (Liquidus)
640 °C 1190 °F
Melting Onset (Solidus)
610 °C 1120 °F
Specific Heat Capacity
880 J/kg-K 0.21 BTU/lb-°F
Thermal Conductivity
140 W/m-K 79 BTU/h-ft-°F
Thermal Expansion
23 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
35 % IACS
Electrical Conductivity: Equal Weight (Specific)
110 % IACS
Otherwise Unclassified Properties
Base Metal Price
9.5 % relative
Calomel Potential
-850 mV
Density
2.9 g/cm3 180 lb/ft3
Embodied Carbon
8.3 kg CO2/kg material
Embodied Energy
150 MJ/kg 65 x 103 BTU/lb
Embodied Water
1150 L/kg 140 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
41 MJ/m3
Resilience: Unit (Modulus of Resilience)
700 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
47 points
Strength to Weight: Axial
36 points
Strength to Weight: Bending
40 points
Thermal Diffusivity
54 mm2/s
Thermal Shock Resistance
17 points
Alloy Composition
| Al | 91 to 94.7 | |
| Zn | 4.0 to 5.0 | |
| Mg | 1.0 to 1.8 | |
| Mn | 0.2 to 0.7 | |
| Fe | 0 to 0.4 | |
| Si | 0 to 0.35 | |
| Zr | 0.080 to 0.2 | |
| Cr | 0.060 to 0.2 | |
| Cu | 0 to 0.1 | |
| Ti | 0.010 to 0.060 | |
| res. | 0 to 0.15 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASTM B221: Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes
EN 755-2: Aluminium and aluminium alloys. Extruded rod/bar, tube and profiles. Mechanical properties
Aluminum Standards and Data, Aluminum Association Inc., 2013
EN 573-3: Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products
Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993