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7049 Aluminum vs. C14520 Copper

7049 aluminum belongs to the aluminum alloys classification, while C14520 copper belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 7049 aluminum and the bottom bar is C14520 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
120
Elongation at Break, % 6.2 to 7.0
9.0 to 9.6
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 27
43
Shear Strength, MPa 300 to 310
170 to 190
Tensile Strength: Ultimate (UTS), MPa 510 to 530
290 to 330
Tensile Strength: Yield (Proof), MPa 420 to 450
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 370
210
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 640
1080
Melting Onset (Solidus), °C 480
1050
Specific Heat Capacity, J/kg-K 860
390
Thermal Conductivity, W/m-K 130
320
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
85
Electrical Conductivity: Equal Weight (Specific), % IACS 110
85

Otherwise Unclassified Properties

Base Metal Price, % relative 10
33
Density, g/cm3 3.1
8.9
Embodied Carbon, kg CO2/kg material 8.1
2.6
Embodied Energy, MJ/kg 140
42
Embodied Water, L/kg 1110
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 34
24 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 1440
240 to 280
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 45
18
Strength to Weight: Axial, points 46 to 47
9.0 to 10
Strength to Weight: Bending, points 46 to 47
11 to 12
Thermal Diffusivity, mm2/s 51
94
Thermal Shock Resistance, points 22 to 23
10 to 12

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
0
Chromium (Cr), % 0.1 to 0.22
0
Copper (Cu), % 1.2 to 1.9
99.2 to 99.596
Iron (Fe), % 0 to 0.35
0
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
0
Phosphorus (P), % 0
0.0040 to 0.020
Silicon (Si), % 0 to 0.25
0
Tellurium (Te), % 0
0.4 to 0.7
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 7.2 to 8.2
0
Residuals, % 0 to 0.15
0