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7204 Aluminum vs. C19020 Copper

7204 aluminum belongs to the aluminum alloys classification, while C19020 copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (4, 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 7204 aluminum and the bottom bar is C19020 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
120
Elongation at Break, % 11 to 13
2.3 to 5.7
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
44
Shear Strength, MPa 130 to 220
260 to 340
Tensile Strength: Ultimate (UTS), MPa 220 to 380
440 to 590

Thermal Properties

Latent Heat of Fusion, J/g 380
210
Maximum Temperature: Mechanical, °C 210
200
Melting Completion (Liquidus), °C 640
1090
Melting Onset (Solidus), °C 520
1030
Specific Heat Capacity, J/kg-K 880
390
Thermal Conductivity, W/m-K 150
190
Thermal Expansion, µm/m-K 24
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
50
Electrical Conductivity: Equal Weight (Specific), % IACS 120
50

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
31
Density, g/cm3 2.9
8.9
Embodied Carbon, kg CO2/kg material 8.4
2.8
Embodied Energy, MJ/kg 150
44
Embodied Water, L/kg 1140
310

Common Calculations

Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 47
18
Strength to Weight: Axial, points 21 to 36
14 to 18
Strength to Weight: Bending, points 28 to 40
14 to 18
Thermal Diffusivity, mm2/s 58
55
Thermal Shock Resistance, points 9.4 to 16
16 to 21

Alloy Composition

Aluminum (Al), % 90.5 to 94.8
0
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.2
95.7 to 99.19
Iron (Fe), % 0 to 0.35
0
Magnesium (Mg), % 1.0 to 2.0
0
Manganese (Mn), % 0.2 to 0.7
0
Nickel (Ni), % 0
0.5 to 3.0
Phosphorus (P), % 0
0.010 to 0.2
Silicon (Si), % 0 to 0.3
0
Tin (Sn), % 0
0.3 to 0.9
Titanium (Ti), % 0 to 0.2
0
Vanadium (V), % 0 to 0.1
0
Zinc (Zn), % 4.0 to 5.0
0
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0
0 to 0.2