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3203 Aluminum vs. C95820 Bronze

3203 aluminum belongs to the aluminum alloys classification, while C95820 bronze belongs to the copper alloys. There are 28 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 3203 aluminum and the bottom bar is C95820 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
120
Elongation at Break, % 4.5 to 29
15
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
44
Tensile Strength: Ultimate (UTS), MPa 110 to 200
730
Tensile Strength: Yield (Proof), MPa 39 to 190
310

Thermal Properties

Latent Heat of Fusion, J/g 400
230
Maximum Temperature: Mechanical, °C 180
230
Melting Completion (Liquidus), °C 650
1080
Melting Onset (Solidus), °C 620
1020
Specific Heat Capacity, J/kg-K 900
440
Thermal Conductivity, W/m-K 170
38
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
29
Density, g/cm3 2.8
8.3
Embodied Carbon, kg CO2/kg material 8.1
3.5
Embodied Energy, MJ/kg 150
56
Embodied Water, L/kg 1180
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0 to 25
86
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 250
400
Stiffness to Weight: Axial, points 14
8.0
Stiffness to Weight: Bending, points 50
20
Strength to Weight: Axial, points 11 to 20
24
Strength to Weight: Bending, points 19 to 28
22
Thermal Diffusivity, mm2/s 70
11
Thermal Shock Resistance, points 4.9 to 8.8
25

Alloy Composition

Aluminum (Al), % 96.9 to 99
9.0 to 10
Copper (Cu), % 0 to 0.050
77.5 to 82.5
Iron (Fe), % 0 to 0.7
4.0 to 5.0
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 1.0 to 1.5
0 to 1.5
Nickel (Ni), % 0
4.5 to 5.8
Silicon (Si), % 0 to 0.6
0 to 0.1
Tin (Sn), % 0
0 to 0.020
Zinc (Zn), % 0 to 0.1
0 to 0.2
Residuals, % 0
0 to 0.8