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C10500 Copper vs. 6081 Aluminum

C10500 copper belongs to the copper alloys classification, while 6081 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 C10500 copper and the bottom bar is 6081 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
69
Elongation at Break, % 2.8 to 51
9.0
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
26
Shear Strength, MPa 150 to 210
180
Tensile Strength: Ultimate (UTS), MPa 220 to 400
310
Tensile Strength: Yield (Proof), MPa 75 to 400
270

Thermal Properties

Latent Heat of Fusion, J/g 210
410
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 1080
640
Melting Onset (Solidus), °C 1080
610
Specific Heat Capacity, J/kg-K 390
900
Thermal Conductivity, W/m-K 390
180
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
47
Electrical Conductivity: Equal Weight (Specific), % IACS 100
160

Otherwise Unclassified Properties

Base Metal Price, % relative 32
9.5
Density, g/cm3 9.0
2.7
Embodied Carbon, kg CO2/kg material 2.6
8.3
Embodied Energy, MJ/kg 42
150
Embodied Water, L/kg 350
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11 to 90
27
Resilience: Unit (Modulus of Resilience), kJ/m3 24 to 680
540
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
50
Strength to Weight: Axial, points 6.8 to 12
32
Strength to Weight: Bending, points 9.1 to 14
37
Thermal Diffusivity, mm2/s 110
74
Thermal Shock Resistance, points 7.8 to 14
14

Alloy Composition

Aluminum (Al), % 0
96.3 to 98.6
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 99.89 to 99.966
0 to 0.1
Iron (Fe), % 0
0 to 0.5
Magnesium (Mg), % 0
0.6 to 1.0
Manganese (Mn), % 0
0.1 to 0.45
Oxygen (O), % 0 to 0.0010
0
Silicon (Si), % 0
0.7 to 1.1
Silver (Ag), % 0.034 to 0.060
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15