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C17300 Copper vs. 6081 Aluminum

C17300 copper belongs to the copper alloys classification, while 6081 aluminum belongs to the aluminum alloys. There are 28 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 C17300 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, % 3.0 to 23
9.0
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 45
26
Shear Strength, MPa 320 to 790
180
Tensile Strength: Ultimate (UTS), MPa 500 to 1380
310
Tensile Strength: Yield (Proof), MPa 160 to 1200
270

Thermal Properties

Latent Heat of Fusion, J/g 230
410
Maximum Temperature: Mechanical, °C 270
160
Melting Completion (Liquidus), °C 980
640
Melting Onset (Solidus), °C 870
610
Specific Heat Capacity, J/kg-K 380
900
Thermal Conductivity, W/m-K 110
180
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
47
Electrical Conductivity: Equal Weight (Specific), % IACS 23
160

Otherwise Unclassified Properties

Density, g/cm3 8.8
2.7
Embodied Carbon, kg CO2/kg material 9.4
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 310
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40 to 88
27
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 5410
540
Stiffness to Weight: Axial, points 7.6
14
Stiffness to Weight: Bending, points 19
50
Strength to Weight: Axial, points 16 to 44
32
Strength to Weight: Bending, points 16 to 31
37
Thermal Diffusivity, mm2/s 32
74
Thermal Shock Resistance, points 17 to 48
14

Alloy Composition

Aluminum (Al), % 0 to 0.2
96.3 to 98.6
Beryllium (Be), % 1.8 to 2.0
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 95.5 to 97.8
0 to 0.1
Iron (Fe), % 0 to 0.4
0 to 0.5
Lead (Pb), % 0.2 to 0.6
0
Magnesium (Mg), % 0
0.6 to 1.0
Manganese (Mn), % 0
0.1 to 0.45
Nickel (Ni), % 0.2 to 0.6
0
Silicon (Si), % 0 to 0.2
0.7 to 1.1
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15