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2018 Aluminum vs. C19000 Copper

2018 aluminum belongs to the aluminum alloys classification, while C19000 copper belongs to the copper alloys. There are 29 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 2018 aluminum and the bottom bar is C19000 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
120
Elongation at Break, % 9.6
2.5 to 50
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
43
Shear Strength, MPa 270
170 to 390
Tensile Strength: Ultimate (UTS), MPa 420
260 to 760
Tensile Strength: Yield (Proof), MPa 310
140 to 630

Thermal Properties

Latent Heat of Fusion, J/g 390
210
Maximum Temperature: Mechanical, °C 220
200
Melting Completion (Liquidus), °C 640
1080
Melting Onset (Solidus), °C 510
1040
Specific Heat Capacity, J/kg-K 870
390
Thermal Conductivity, W/m-K 150
250
Thermal Expansion, µm/m-K 22
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
60
Electrical Conductivity: Equal Weight (Specific), % IACS 120
61

Otherwise Unclassified Properties

Base Metal Price, % relative 11
31
Density, g/cm3 3.1
8.9
Embodied Carbon, kg CO2/kg material 8.1
2.7
Embodied Energy, MJ/kg 150
42
Embodied Water, L/kg 1130
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37
18 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 670
89 to 1730
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 45
18
Strength to Weight: Axial, points 38
8.2 to 24
Strength to Weight: Bending, points 41
10 to 21
Thermal Diffusivity, mm2/s 57
73
Thermal Shock Resistance, points 19
9.3 to 27

Alloy Composition

Aluminum (Al), % 89.7 to 94.4
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.5 to 4.5
96.9 to 99
Iron (Fe), % 0 to 1.0
0 to 0.1
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0.45 to 0.9
0
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 1.7 to 2.3
0.9 to 1.3
Phosphorus (P), % 0
0.15 to 0.35
Silicon (Si), % 0 to 0.9
0
Zinc (Zn), % 0 to 0.25
0 to 0.8
Residuals, % 0
0 to 0.5