2007 (AlCu4PbMgMn, 3.1645, A92007) Aluminum
2007 aluminum is a 2000-series aluminum alloy: the main alloying addition is copper, and it is formulated for primary forming into wrought products. 2007 is the Aluminum Association (AA) designation for this material. In European standards, it will be given as EN AW-2007. AlCu4PbMgMn is the EN chemical designation. And A92007 is the UNS number.
It originally received its standard designation in 1979.
It has the highest electrical conductivity among the 2000-series alloys in the database.
The properties of 2007 aluminum include seven 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 2007 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
71 GPa 10 x 106 psi
Elongation at Break
5.6 to 8.0 %
Fatigue Strength
91 to 110 MPa 13 to 16 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
27 GPa 3.9 x 106 psi
Shear Strength
220 to 250 MPa 32 to 36 x 103 psi
Tensile Strength: Ultimate (UTS)
370 to 420 MPa 54 to 61 x 103 psi
Tensile Strength: Yield (Proof)
240 to 270 MPa 34 to 40 x 103 psi
Thermal Properties
Latent Heat of Fusion
390 J/g
Maximum Temperature: Mechanical
190 °C 380 °F
Melting Completion (Liquidus)
640 °C 1180 °F
Melting Onset (Solidus)
510 °C 950 °F
Specific Heat Capacity
870 J/kg-K 0.21 BTU/lb-°F
Thermal Conductivity
130 W/m-K 75 BTU/h-ft-°F
Thermal Expansion
23 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
47 % IACS
Electrical Conductivity: Equal Weight (Specific)
140 % IACS
Otherwise Unclassified Properties
Base Metal Price
11 % relative
Density
3.1 g/cm3 190 lb/ft3
Embodied Carbon
8.0 kg CO2/kg material
Embodied Energy
150 MJ/kg 63 x 103 BTU/lb
Embodied Water
1130 L/kg 130 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
21 to 26 MJ/m3
Resilience: Unit (Modulus of Resilience)
390 to 530 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
44 points
Strength to Weight: Axial
33 to 38 points
Strength to Weight: Bending
37 to 40 points
Thermal Diffusivity
48 mm2/s
Thermal Shock Resistance
16 to 19 points
Alloy Composition
Among wrought aluminum alloys, the composition of 2007 aluminum is notable for including tin (Sn) and lead (Pb). Tin is used to increase bearing properties at the cost of a decrease in corrosion resistance. Lead is used to improve machinability at the cost of toxicity and a decrease in weldability.
| Al | 87.5 to 95 | |
| Cu | 3.3 to 4.6 | |
| Pb | 0.8 to 1.5 | |
| Mg | 0.4 to 1.8 | |
| Mn | 0.5 to 1.0 | |
| Si | 0 to 0.8 | |
| Fe | 0 to 0.8 | |
| Zn | 0 to 0.8 | |
| Ni | 0 to 0.2 | |
| Ti | 0 to 0.2 | |
| Sn | 0 to 0.2 | |
| Bi | 0 to 0.2 | |
| Cr | 0 to 0.1 | |
| res. | 0 to 0.3 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
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 755-2: Aluminium and aluminium alloys. Extruded rod/bar, tube and profiles. Mechanical properties
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