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C14500 Copper vs. 7129 Aluminum

C14500 copper belongs to the copper alloys classification, while 7129 Aluminum belongs to the aluminum 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 C14500 copper and the bottom bar is 7129 Aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
69
Elongation at Break, % 12 to 50
9.0 to 9.1
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
26
Shear Strength, MPa 150 to 190
250 to 260
Tensile Strength: Ultimate (UTS), MPa 220 to 330
430
Tensile Strength: Yield (Proof), MPa 69 to 260
380 to 390

Thermal Properties

Latent Heat of Fusion, J/g 210
380
Maximum Temperature: Mechanical, °C 200
180
Melting Completion (Liquidus), °C 1080
630
Melting Onset (Solidus), °C 1050
510
Specific Heat Capacity, J/kg-K 390
880
Thermal Conductivity, W/m-K 360
150
Thermal Expansion, µm/m-K 17
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 94
40
Electrical Conductivity: Equal Weight (Specific), % IACS 95
120

Otherwise Unclassified Properties

Base Metal Price, % relative 33
9.5
Density, g/cm3 8.9
2.9
Embodied Carbon, kg CO2/kg material 2.6
8.3
Embodied Energy, MJ/kg 42
150
Embodied Water, L/kg 310
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 85
37 to 38
Resilience: Unit (Modulus of Resilience), kJ/m3 21 to 300
1050 to 1090
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 18
47
Strength to Weight: Axial, points 6.8 to 10
41
Strength to Weight: Bending, points 9.1 to 12
43 to 44
Thermal Diffusivity, mm2/s 100
58
Thermal Shock Resistance, points 8.0 to 12
19

Alloy Composition

Aluminum (Al), % 0
91 to 94
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 99.2 to 99.596
0.5 to 0.9
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 0
0 to 0.3
Magnesium (Mg), % 0
1.3 to 2.0
Manganese (Mn), % 0
0 to 0.1
Phosphorus (P), % 0.0040 to 0.012
0
Silicon (Si), % 0
0 to 0.15
Tellurium (Te), % 0.4 to 0.7
0
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0
4.2 to 5.2
Residuals, % 0
0 to 0.15