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C18700 Copper vs. 6101A Aluminum

C18700 copper belongs to the copper alloys classification, while 6101A aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, 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 C18700 copper and the bottom bar is 6101A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
68
Elongation at Break, % 9.0 to 9.6
11
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
26
Shear Strength, MPa 170 to 190
130
Tensile Strength: Ultimate (UTS), MPa 290 to 330
220
Tensile Strength: Yield (Proof), MPa 230 to 250
190

Thermal Properties

Latent Heat of Fusion, J/g 210
400
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 1080
640
Melting Onset (Solidus), °C 950
630
Specific Heat Capacity, J/kg-K 380
900
Thermal Conductivity, W/m-K 380
200
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
55
Electrical Conductivity: Equal Weight (Specific), % IACS 99
180

Otherwise Unclassified Properties

Base Metal Price, % relative 30
9.5
Density, g/cm3 9.0
2.7
Embodied Carbon, kg CO2/kg material 2.6
8.3
Embodied Energy, MJ/kg 41
150
Embodied Water, L/kg 310
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
24
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
280
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 18
51
Strength to Weight: Axial, points 9.0 to 10
23
Strength to Weight: Bending, points 11 to 12
30
Thermal Diffusivity, mm2/s 110
84
Thermal Shock Resistance, points 10 to 12
10

Alloy Composition

Aluminum (Al), % 0
97.9 to 99.3
Copper (Cu), % 98 to 99.2
0 to 0.050
Iron (Fe), % 0
0 to 0.4
Lead (Pb), % 0.8 to 1.5
0
Magnesium (Mg), % 0
0.4 to 0.9
Silicon (Si), % 0
0.3 to 0.7
Residuals, % 0
0 to 0.1