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8021 Aluminum vs. C61500 Bronze

8021 aluminum belongs to the aluminum alloys classification, while C61500 bronze belongs to the copper alloys. There are 28 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 8021 aluminum and the bottom bar is C61500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 2.3
3.0 to 55
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
42
Tensile Strength: Ultimate (UTS), MPa 160
480 to 970
Tensile Strength: Yield (Proof), MPa 130
150 to 720

Thermal Properties

Latent Heat of Fusion, J/g 400
220
Maximum Temperature: Mechanical, °C 170
220
Melting Completion (Liquidus), °C 650
1040
Melting Onset (Solidus), °C 640
1030
Specific Heat Capacity, J/kg-K 900
430
Thermal Conductivity, W/m-K 220
58
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
13
Electrical Conductivity: Equal Weight (Specific), % IACS 180
13

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
29
Density, g/cm3 2.8
8.4
Embodied Carbon, kg CO2/kg material 8.1
3.2
Embodied Energy, MJ/kg 150
52
Embodied Water, L/kg 1180
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.4
27 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 130
100 to 2310
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 49
19
Strength to Weight: Axial, points 16
16 to 32
Strength to Weight: Bending, points 23
16 to 26
Thermal Diffusivity, mm2/s 88
16
Thermal Shock Resistance, points 7.0
17 to 34

Alloy Composition

Aluminum (Al), % 98 to 98.8
7.7 to 8.3
Copper (Cu), % 0 to 0.050
89 to 90.5
Iron (Fe), % 1.2 to 1.7
0
Lead (Pb), % 0
0 to 0.015
Nickel (Ni), % 0
1.8 to 2.2
Silicon (Si), % 0 to 0.15
0
Residuals, % 0
0 to 0.5