7010 (AlZn6MgCu, A97010) Aluminum
7010 aluminum is a 7000-series aluminum alloy: the main alloying addition is zinc and it is formulated for primary forming into wrought products. 7010 is the Aluminum Association (AA) designation for this material. In European standards, it will be given as EN AW-7010. AlZn6MgCu is the EN chemical designation. A97010 is the UNS number. Additionally, the British Standard (BS) designation is DTD5130.
It originally received its standard designation in 1975.
The properties of 7010 aluminum include ten common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare 7010 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
3.9 to 6.8 %
Fatigue Strength
160 to 190 MPa 23 to 28 x 103 psi
Poisson's Ratio
0.32
Shear Modulus
26 GPa 3.8 x 106 psi
Shear Strength
300 to 340 MPa 44 to 50 x 103 psi
Tensile Strength: Ultimate (UTS)
520 to 590 MPa 75 to 86 x 103 psi
Tensile Strength: Yield (Proof)
410 to 540 MPa 60 to 79 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)
22 to 33 MJ/m3
Resilience: Unit (Modulus of Resilience)
1230 to 2130 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
45 points
Strength to Weight: Axial
47 to 54 points
Strength to Weight: Bending
47 to 52 points
Thermal Diffusivity
58 mm2/s
Thermal Shock Resistance
22 to 26 points
Alloy Composition
Among wrought aluminum alloys, the composition of 7010 aluminum is notable for containing a comparatively high amount of zinc (Zn) and including nickel (Ni). Zinc is used to achieve significant increases in strength, at the cost of increased susceptibility to stress corrosion cracking. Among other things, this limits weldability. Nickel is used to increase mechanical strength at elevated temperatures, and to reduce thermal expansion. However, it can increase susceptibility to pitting corrosion in certain alloys.
| 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
Similar Alloys
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