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2024 Aluminum vs. CR012A Copper

2024 aluminum belongs to the aluminum alloys classification, while CR012A copper belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 2024 aluminum and the bottom bar is CR012A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
120
Elongation at Break, % 4.0 to 16
15
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
43
Tensile Strength: Ultimate (UTS), MPa 200 to 540
220
Tensile Strength: Yield (Proof), MPa 100 to 490
130

Thermal Properties

Latent Heat of Fusion, J/g 390
210
Maximum Temperature: Mechanical, °C 200
200
Melting Completion (Liquidus), °C 640
1090
Melting Onset (Solidus), °C 500
1040
Specific Heat Capacity, J/kg-K 880
390
Thermal Conductivity, W/m-K 120
390
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
100
Electrical Conductivity: Equal Weight (Specific), % IACS 90
100

Otherwise Unclassified Properties

Base Metal Price, % relative 11
33
Density, g/cm3 3.0
9.0
Embodied Carbon, kg CO2/kg material 8.3
2.7
Embodied Energy, MJ/kg 150
42
Embodied Water, L/kg 1140
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 68
29
Resilience: Unit (Modulus of Resilience), kJ/m3 70 to 1680
76
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 46
18
Strength to Weight: Axial, points 18 to 50
6.8
Strength to Weight: Bending, points 25 to 49
9.0
Thermal Diffusivity, mm2/s 46
110
Thermal Shock Resistance, points 8.6 to 24
7.8

Alloy Composition


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Aluminum (Al), % 90.7 to 94.7
0
Bismuth (Bi), % 0
0 to 0.00050
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.8 to 4.9
99.85 to 99.94
Iron (Fe), % 0 to 0.5
0
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0.3 to 0.9
0
Oxygen (O), % 0
0 to 0.040
Silicon (Si), % 0 to 0.5
0
Silver (Ag), % 0
0.060 to 0.080
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0 to 0.15
0