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238.0 Aluminum vs. CC140C Copper

238.0 aluminum belongs to the aluminum alloys classification, while CC140C copper belongs to the copper 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 238.0 aluminum and the bottom bar is CC140C copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
120
Elongation at Break, % 1.5
11
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 28
44
Tensile Strength: Ultimate (UTS), MPa 210
340
Tensile Strength: Yield (Proof), MPa 170
230

Thermal Properties

Latent Heat of Fusion, J/g 430
210
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 600
1100
Melting Onset (Solidus), °C 510
1040
Specific Heat Capacity, J/kg-K 840
390
Thermal Conductivity, W/m-K 100
310
Thermal Expansion, µm/m-K 21
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
77
Electrical Conductivity: Equal Weight (Specific), % IACS 67
78

Otherwise Unclassified Properties

Base Metal Price, % relative 12
31
Density, g/cm3 3.4
8.9
Embodied Carbon, kg CO2/kg material 7.4
2.6
Embodied Energy, MJ/kg 140
41
Embodied Water, L/kg 1040
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
34
Resilience: Unit (Modulus of Resilience), kJ/m3 180
220
Stiffness to Weight: Axial, points 12
7.3
Stiffness to Weight: Bending, points 42
18
Strength to Weight: Axial, points 17
10
Strength to Weight: Bending, points 23
12
Thermal Diffusivity, mm2/s 37
89
Thermal Shock Resistance, points 9.1
12

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0
Chromium (Cr), % 0
0.4 to 1.2
Copper (Cu), % 9.5 to 10.5
98.8 to 99.6
Iron (Fe), % 1.0 to 1.5
0
Magnesium (Mg), % 0 to 0.25
0
Silicon (Si), % 3.6 to 4.4
0
Zinc (Zn), % 1.0 to 1.5
0