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7010 Aluminum vs. C18700 Copper

7010 aluminum belongs to the aluminum alloys classification, while C18700 copper belongs to the copper 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 7010 aluminum and the bottom bar is C18700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 3.9 to 6.8
9.0 to 9.6
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 26
43
Shear Strength, MPa 300 to 340
170 to 190
Tensile Strength: Ultimate (UTS), MPa 520 to 590
290 to 330
Tensile Strength: Yield (Proof), MPa 410 to 540
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 380
210
Maximum Temperature: Mechanical, °C 200
200
Melting Completion (Liquidus), °C 630
1080
Melting Onset (Solidus), °C 480
950
Specific Heat Capacity, J/kg-K 860
380
Thermal Conductivity, W/m-K 150
380
Thermal Expansion, µm/m-K 24
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
98
Electrical Conductivity: Equal Weight (Specific), % IACS 120
99

Otherwise Unclassified Properties

Base Metal Price, % relative 10
30
Density, g/cm3 3.0
9.0
Embodied Carbon, kg CO2/kg material 8.3
2.6
Embodied Energy, MJ/kg 150
41
Embodied Water, L/kg 1120
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22 to 33
24 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 1230 to 2130
240 to 280
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 45
18
Strength to Weight: Axial, points 47 to 54
9.0 to 10
Strength to Weight: Bending, points 47 to 52
11 to 12
Thermal Diffusivity, mm2/s 58
110
Thermal Shock Resistance, points 22 to 26
10 to 12

Alloy Composition

Aluminum (Al), % 87.9 to 90.6
0
Chromium (Cr), % 0 to 0.050
0
Copper (Cu), % 1.5 to 2.0
98 to 99.2
Iron (Fe), % 0 to 0.15
0
Lead (Pb), % 0
0.8 to 1.5
Magnesium (Mg), % 2.1 to 2.6
0
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.050
0
Silicon (Si), % 0 to 0.12
0
Titanium (Ti), % 0 to 0.060
0
Zinc (Zn), % 5.7 to 6.7
0
Zirconium (Zr), % 0.1 to 0.16
0
Residuals, % 0
0 to 0.5