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2124 Aluminum vs. C95700 Bronze

2124 aluminum belongs to the aluminum alloys classification, while C95700 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 2124 aluminum and the bottom bar is C95700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
130
Elongation at Break, % 5.7
23
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
47
Tensile Strength: Ultimate (UTS), MPa 490
680
Tensile Strength: Yield (Proof), MPa 430
310

Thermal Properties

Latent Heat of Fusion, J/g 390
230
Maximum Temperature: Mechanical, °C 190
220
Melting Completion (Liquidus), °C 640
990
Melting Onset (Solidus), °C 500
950
Specific Heat Capacity, J/kg-K 880
440
Thermal Conductivity, W/m-K 150
12
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 110
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
26
Density, g/cm3 3.0
8.2
Embodied Carbon, kg CO2/kg material 8.2
3.3
Embodied Energy, MJ/kg 150
54
Embodied Water, L/kg 1150
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
130
Resilience: Unit (Modulus of Resilience), kJ/m3 1290
390
Stiffness to Weight: Axial, points 13
8.5
Stiffness to Weight: Bending, points 46
20
Strength to Weight: Axial, points 45
23
Strength to Weight: Bending, points 46
21
Thermal Diffusivity, mm2/s 58
3.3
Thermal Shock Resistance, points 21
21

Alloy Composition

Aluminum (Al), % 91.3 to 94.7
7.0 to 8.5
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.8 to 4.9
71 to 78.5
Iron (Fe), % 0 to 0.3
2.0 to 4.0
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0.3 to 0.9
11 to 14
Nickel (Ni), % 0
1.5 to 3.0
Silicon (Si), % 0 to 0.2
0 to 0.1
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0
0 to 0.5