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7020 Aluminum vs. C95520 Bronze

7020 aluminum belongs to the aluminum alloys classification, while C95520 bronze belongs to the copper 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 7020 aluminum and the bottom bar is C95520 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 45 to 100
280
Elastic (Young's, Tensile) Modulus, GPa 70
120
Elongation at Break, % 8.4 to 14
2.6
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
44
Tensile Strength: Ultimate (UTS), MPa 190 to 390
970
Tensile Strength: Yield (Proof), MPa 120 to 310
530

Thermal Properties

Latent Heat of Fusion, J/g 380
240
Maximum Temperature: Mechanical, °C 210
240
Melting Completion (Liquidus), °C 650
1070
Melting Onset (Solidus), °C 610
1020
Specific Heat Capacity, J/kg-K 880
450
Thermal Conductivity, W/m-K 150
40
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
11
Electrical Conductivity: Equal Weight (Specific), % IACS 120
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
29
Density, g/cm3 2.9
8.2
Embodied Carbon, kg CO2/kg material 8.3
3.6
Embodied Energy, MJ/kg 150
58
Embodied Water, L/kg 1150
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23 to 46
21
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 690
1210
Stiffness to Weight: Axial, points 13
8.0
Stiffness to Weight: Bending, points 47
20
Strength to Weight: Axial, points 18 to 37
33
Strength to Weight: Bending, points 25 to 41
27
Thermal Diffusivity, mm2/s 59
11
Thermal Shock Resistance, points 8.3 to 17
33

Alloy Composition

Aluminum (Al), % 91.2 to 94.8
10.5 to 11.5
Chromium (Cr), % 0.1 to 0.35
0 to 0.050
Cobalt (Co), % 0
0 to 0.2
Copper (Cu), % 0 to 0.2
74.5 to 81.3
Iron (Fe), % 0 to 0.4
4.0 to 5.5
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 1.0 to 1.4
0
Manganese (Mn), % 0.050 to 0.5
0 to 1.5
Nickel (Ni), % 0
4.2 to 6.0
Silicon (Si), % 0 to 0.35
0 to 0.15
Tin (Sn), % 0
0 to 0.25
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 4.0 to 5.0
0 to 0.3
Zirconium (Zr), % 0.080 to 0.25
0
Residuals, % 0
0 to 0.5