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3203 Aluminum vs. C90700 Bronze

3203 aluminum belongs to the aluminum alloys classification, while C90700 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 C90700 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
0.34
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 110 to 200
330
Tensile Strength: Yield (Proof), MPa 39 to 190
180

Thermal Properties

Latent Heat of Fusion, J/g 400
190
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 650
1000
Melting Onset (Solidus), °C 620
830
Specific Heat Capacity, J/kg-K 900
370
Thermal Conductivity, W/m-K 170
71
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
10
Electrical Conductivity: Equal Weight (Specific), % IACS 140
10

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
35
Density, g/cm3 2.8
8.7
Embodied Carbon, kg CO2/kg material 8.1
3.7
Embodied Energy, MJ/kg 150
60
Embodied Water, L/kg 1180
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0 to 25
34
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 250
150
Stiffness to Weight: Axial, points 14
6.9
Stiffness to Weight: Bending, points 50
18
Strength to Weight: Axial, points 11 to 20
10
Strength to Weight: Bending, points 19 to 28
12
Thermal Diffusivity, mm2/s 70
22
Thermal Shock Resistance, points 4.9 to 8.8
12

Alloy Composition

Aluminum (Al), % 96.9 to 99
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Copper (Cu), % 0 to 0.050
88 to 90
Iron (Fe), % 0 to 0.7
0 to 0.15
Lead (Pb), % 0
0 to 0.5
Manganese (Mn), % 1.0 to 1.5
0
Nickel (Ni), % 0
0 to 0.5
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
10 to 12
Zinc (Zn), % 0 to 0.1
0 to 0.5
Residuals, % 0
0 to 0.6