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238.0 Aluminum vs. C82700 Copper

238.0 aluminum belongs to the aluminum alloys classification, while C82700 copper belongs to the copper 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 238.0 aluminum and the bottom bar is C82700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
120
Elongation at Break, % 1.5
1.8
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 28
46
Tensile Strength: Ultimate (UTS), MPa 210
1200
Tensile Strength: Yield (Proof), MPa 170
1020

Thermal Properties

Latent Heat of Fusion, J/g 430
240
Maximum Temperature: Mechanical, °C 170
300
Melting Completion (Liquidus), °C 600
950
Melting Onset (Solidus), °C 510
860
Specific Heat Capacity, J/kg-K 840
380
Thermal Conductivity, W/m-K 100
130
Thermal Expansion, µm/m-K 21
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
20
Electrical Conductivity: Equal Weight (Specific), % IACS 67
21

Otherwise Unclassified Properties

Density, g/cm3 3.4
8.7
Embodied Carbon, kg CO2/kg material 7.4
12
Embodied Energy, MJ/kg 140
180
Embodied Water, L/kg 1040
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
21
Resilience: Unit (Modulus of Resilience), kJ/m3 180
4260
Stiffness to Weight: Axial, points 12
7.8
Stiffness to Weight: Bending, points 42
19
Strength to Weight: Axial, points 17
38
Strength to Weight: Bending, points 23
29
Thermal Diffusivity, mm2/s 37
39
Thermal Shock Resistance, points 9.1
41

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0 to 0.15
Beryllium (Be), % 0
2.4 to 2.6
Chromium (Cr), % 0
0 to 0.090
Copper (Cu), % 9.5 to 10.5
94.6 to 96.7
Iron (Fe), % 1.0 to 1.5
0 to 0.25
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 0 to 0.25
0
Nickel (Ni), % 0
1.0 to 1.5
Silicon (Si), % 3.6 to 4.4
0 to 0.15
Tin (Sn), % 0
0 to 0.1
Zinc (Zn), % 1.0 to 1.5
0 to 0.1
Residuals, % 0
0 to 0.5