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C82400 Copper vs. 1085 Aluminum

C82400 copper belongs to the copper alloys classification, while 1085 aluminum belongs to the aluminum alloys. There are 27 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 C82400 copper and the bottom bar is 1085 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
68
Elongation at Break, % 1.0 to 20
4.5 to 39
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 45
26
Tensile Strength: Ultimate (UTS), MPa 500 to 1030
73 to 140
Tensile Strength: Yield (Proof), MPa 260 to 970
17 to 120

Thermal Properties

Latent Heat of Fusion, J/g 230
400
Maximum Temperature: Mechanical, °C 270
170
Melting Completion (Liquidus), °C 1000
640
Melting Onset (Solidus), °C 900
640
Specific Heat Capacity, J/kg-K 380
900
Thermal Conductivity, W/m-K 130
230
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
61
Electrical Conductivity: Equal Weight (Specific), % IACS 26
200

Otherwise Unclassified Properties

Density, g/cm3 8.8
2.7
Embodied Carbon, kg CO2/kg material 8.9
8.3
Embodied Energy, MJ/kg 140
160
Embodied Water, L/kg 310
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 83
4.8 to 21
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 3870
2.1 to 110
Stiffness to Weight: Axial, points 7.6
14
Stiffness to Weight: Bending, points 19
50
Strength to Weight: Axial, points 16 to 33
7.5 to 14
Strength to Weight: Bending, points 16 to 26
14 to 22
Thermal Diffusivity, mm2/s 39
94
Thermal Shock Resistance, points 17 to 36
3.3 to 6.1

Alloy Composition

Aluminum (Al), % 0 to 0.15
99.85 to 100
Beryllium (Be), % 1.6 to 1.9
0
Chromium (Cr), % 0 to 0.1
0
Cobalt (Co), % 0.2 to 0.65
0
Copper (Cu), % 96 to 98.2
0 to 0.030
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 0 to 0.2
0 to 0.12
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0
0 to 0.020
Manganese (Mn), % 0
0 to 0.020
Nickel (Ni), % 0 to 0.2
0
Silicon (Si), % 0
0 to 0.1
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.12
0 to 0.020
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.1
0 to 0.030
Residuals, % 0
0 to 0.010