7010-T74 Aluminum
7010-T74 aluminum is 7010 aluminum in the T74 temper. To achieve this temper, the metal is solution heat-treated and stabilized by artificial overaging. The degree of overaging is chosen so as to strike an effective balance between tensile strength, stress corrosion resistance, exfoliation corrosion resistance, and fracture toughness.
The graph bars on the material properties cards below compare 7010-T74 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
6.3 %
Fatigue Strength
180 MPa 25 x 103 psi
Poisson's Ratio
0.32
Shear Modulus
26 GPa 3.8 x 106 psi
Shear Strength
320 MPa 46 x 103 psi
Tensile Strength: Ultimate (UTS)
540 MPa 79 x 103 psi
Tensile Strength: Yield (Proof)
460 MPa 67 x 103 psi
Thermal Properties
Latent Heat of Fusion
380 J/g
Maximum Temperature: Mechanical
200 °C 380 °F
Melting Completion (Liquidus)
630 °C 1170 °F
Melting Onset (Solidus)
480 °C 890 °F
Specific Heat Capacity
860 J/kg-K 0.21 BTU/lb-°F
Thermal Conductivity
150 W/m-K 88 BTU/h-ft-°F
Thermal Expansion
24 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
40 % IACS
Electrical Conductivity: Equal Weight (Specific)
120 % IACS
Otherwise Unclassified Properties
Base Metal Price
10 % relative
Density
3.0 g/cm3 190 lb/ft3
Embodied Carbon
8.3 kg CO2/kg material
Embodied Energy
150 MJ/kg 64 x 103 BTU/lb
Embodied Water
1120 L/kg 130 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
32 MJ/m3
Resilience: Unit (Modulus of Resilience)
1510 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
45 points
Strength to Weight: Axial
50 points
Strength to Weight: Bending
49 points
Thermal Diffusivity
58 mm2/s
Thermal Shock Resistance
24 points
Alloy Composition
| Al | 87.9 to 90.6 | |
| Zn | 5.7 to 6.7 | |
| Mg | 2.1 to 2.6 | |
| Cu | 1.5 to 2.0 | |
| Zr | 0.1 to 0.16 | |
| Fe | 0 to 0.15 | |
| Si | 0 to 0.12 | |
| Mn | 0 to 0.1 | |
| Ti | 0 to 0.060 | |
| Cr | 0 to 0.050 | |
| Ni | 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 485-2: Aluminium and aluminium alloys. Sheet, strip and plate. Mechanical properties
ASM Specialty Handbook: Aluminum and Aluminum Alloys, J. R. Davis (editor), 1993
ISO 6361-2: Wrought aluminium and aluminium alloys - Sheets, strips and plates - Part 2: Mechanical properties
EN 573-3: Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products