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C99300 Copper vs. 7020 Aluminum

C99300 copper belongs to the copper alloys classification, while 7020 aluminum belongs to the aluminum alloys. There are 29 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 C99300 copper and the bottom bar is 7020 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
45 to 100
Elastic (Young's, Tensile) Modulus, GPa 120
70
Elongation at Break, % 2.0
8.4 to 14
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 46
26
Tensile Strength: Ultimate (UTS), MPa 660
190 to 390
Tensile Strength: Yield (Proof), MPa 380
120 to 310

Thermal Properties

Latent Heat of Fusion, J/g 240
380
Maximum Temperature: Mechanical, °C 250
210
Melting Completion (Liquidus), °C 1080
650
Melting Onset (Solidus), °C 1070
610
Specific Heat Capacity, J/kg-K 450
880
Thermal Conductivity, W/m-K 43
150
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
39
Electrical Conductivity: Equal Weight (Specific), % IACS 9.8
120

Otherwise Unclassified Properties

Base Metal Price, % relative 35
9.5
Density, g/cm3 8.2
2.9
Embodied Carbon, kg CO2/kg material 4.5
8.3
Embodied Energy, MJ/kg 70
150
Embodied Water, L/kg 400
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
23 to 46
Resilience: Unit (Modulus of Resilience), kJ/m3 590
110 to 690
Stiffness to Weight: Axial, points 8.3
13
Stiffness to Weight: Bending, points 20
47
Strength to Weight: Axial, points 22
18 to 37
Strength to Weight: Bending, points 20
25 to 41
Thermal Diffusivity, mm2/s 12
59
Thermal Shock Resistance, points 22
8.3 to 17

Alloy Composition

Aluminum (Al), % 10.7 to 11.5
91.2 to 94.8
Chromium (Cr), % 0
0.1 to 0.35
Cobalt (Co), % 1.0 to 2.0
0
Copper (Cu), % 68.6 to 74.4
0 to 0.2
Iron (Fe), % 0.4 to 1.0
0 to 0.4
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0
1.0 to 1.4
Manganese (Mn), % 0
0.050 to 0.5
Nickel (Ni), % 13.5 to 16.5
0
Silicon (Si), % 0 to 0.020
0 to 0.35
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
4.0 to 5.0
Zirconium (Zr), % 0
0.080 to 0.25
Residuals, % 0
0 to 0.15