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3203 Aluminum vs. C92900 Bronze

3203 aluminum belongs to the aluminum alloys classification, while C92900 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 C92900 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 4.5 to 29
9.1
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 110 to 200
350
Tensile Strength: Yield (Proof), MPa 39 to 190
190

Thermal Properties

Latent Heat of Fusion, J/g 400
190
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 650
1030
Melting Onset (Solidus), °C 620
860
Specific Heat Capacity, J/kg-K 900
370
Thermal Conductivity, W/m-K 170
58
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 140
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
35
Density, g/cm3 2.8
8.8
Embodied Carbon, kg CO2/kg material 8.1
3.8
Embodied Energy, MJ/kg 150
61
Embodied Water, L/kg 1180
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0 to 25
27
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 250
170
Stiffness to Weight: Axial, points 14
6.8
Stiffness to Weight: Bending, points 50
18
Strength to Weight: Axial, points 11 to 20
11
Strength to Weight: Bending, points 19 to 28
13
Thermal Diffusivity, mm2/s 70
18
Thermal Shock Resistance, points 4.9 to 8.8
13

Alloy Composition

Aluminum (Al), % 96.9 to 99
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 0 to 0.050
82 to 86
Iron (Fe), % 0 to 0.7
0 to 0.2
Lead (Pb), % 0
2.0 to 3.2
Manganese (Mn), % 1.0 to 1.5
0
Nickel (Ni), % 0
2.8 to 4.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0 to 0.6
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
9.0 to 11
Zinc (Zn), % 0 to 0.1
0 to 0.25
Residuals, % 0
0 to 0.7