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3203 Aluminum vs. C67300 Bronze

3203 aluminum belongs to the aluminum alloys classification, while C67300 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 3203 aluminum and the bottom bar is C67300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 4.5 to 29
12
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
41
Shear Strength, MPa 72 to 120
300
Tensile Strength: Ultimate (UTS), MPa 110 to 200
500
Tensile Strength: Yield (Proof), MPa 39 to 190
340

Thermal Properties

Latent Heat of Fusion, J/g 400
190
Maximum Temperature: Mechanical, °C 180
130
Melting Completion (Liquidus), °C 650
870
Melting Onset (Solidus), °C 620
830
Specific Heat Capacity, J/kg-K 900
390
Thermal Conductivity, W/m-K 170
95
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
22
Electrical Conductivity: Equal Weight (Specific), % IACS 140
25

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
23
Density, g/cm3 2.8
8.0
Embodied Carbon, kg CO2/kg material 8.1
2.7
Embodied Energy, MJ/kg 150
46
Embodied Water, L/kg 1180
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0 to 25
55
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 250
550
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 50
20
Strength to Weight: Axial, points 11 to 20
17
Strength to Weight: Bending, points 19 to 28
17
Thermal Diffusivity, mm2/s 70
30
Thermal Shock Resistance, points 4.9 to 8.8
16

Alloy Composition

Aluminum (Al), % 96.9 to 99
0 to 0.25
Copper (Cu), % 0 to 0.050
58 to 63
Iron (Fe), % 0 to 0.7
0 to 0.5
Lead (Pb), % 0
0.4 to 3.0
Manganese (Mn), % 1.0 to 1.5
2.0 to 3.5
Nickel (Ni), % 0
0 to 0.25
Silicon (Si), % 0 to 0.6
0.5 to 1.5
Tin (Sn), % 0
0 to 0.3
Zinc (Zn), % 0 to 0.1
27.2 to 39.1
Residuals, % 0
0 to 0.5