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3203 Aluminum vs. C95520 Bronze

3203 aluminum belongs to the aluminum alloys classification, while C95520 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 3203 aluminum and the bottom bar is C95520 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
120
Elongation at Break, % 4.5 to 29
2.6
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
44
Tensile Strength: Ultimate (UTS), MPa 110 to 200
970
Tensile Strength: Yield (Proof), MPa 39 to 190
530

Thermal Properties

Latent Heat of Fusion, J/g 400
240
Maximum Temperature: Mechanical, °C 180
240
Melting Completion (Liquidus), °C 650
1070
Melting Onset (Solidus), °C 620
1020
Specific Heat Capacity, J/kg-K 900
450
Thermal Conductivity, W/m-K 170
40
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
11
Electrical Conductivity: Equal Weight (Specific), % IACS 140
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
29
Density, g/cm3 2.8
8.2
Embodied Carbon, kg CO2/kg material 8.1
3.6
Embodied Energy, MJ/kg 150
58
Embodied Water, L/kg 1180
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0 to 25
21
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 250
1210
Stiffness to Weight: Axial, points 14
8.0
Stiffness to Weight: Bending, points 50
20
Strength to Weight: Axial, points 11 to 20
33
Strength to Weight: Bending, points 19 to 28
27
Thermal Diffusivity, mm2/s 70
11
Thermal Shock Resistance, points 4.9 to 8.8
33

Alloy Composition

Aluminum (Al), % 96.9 to 99
10.5 to 11.5
Chromium (Cr), % 0
0 to 0.050
Cobalt (Co), % 0
0 to 0.2
Copper (Cu), % 0 to 0.050
74.5 to 81.3
Iron (Fe), % 0 to 0.7
4.0 to 5.5
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 1.0 to 1.5
0 to 1.5
Nickel (Ni), % 0
4.2 to 6.0
Silicon (Si), % 0 to 0.6
0 to 0.15
Tin (Sn), % 0
0 to 0.25
Zinc (Zn), % 0 to 0.1
0 to 0.3
Residuals, % 0
0 to 0.5