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C93700 Bronze vs. 2025 Aluminum

C93700 bronze belongs to the copper alloys classification, while 2025 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, 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 C93700 bronze and the bottom bar is 2025 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 99
72
Elongation at Break, % 20
15
Fatigue Strength, MPa 90
130
Poisson's Ratio 0.35
0.33
Shear Modulus, GPa 37
27
Tensile Strength: Ultimate (UTS), MPa 240
400
Tensile Strength: Yield (Proof), MPa 130
260

Thermal Properties

Latent Heat of Fusion, J/g 170
400
Maximum Temperature: Mechanical, °C 140
190
Melting Completion (Liquidus), °C 930
640
Melting Onset (Solidus), °C 760
520
Specific Heat Capacity, J/kg-K 350
870
Thermal Conductivity, W/m-K 47
150
Thermal Expansion, µm/m-K 19
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
40
Electrical Conductivity: Equal Weight (Specific), % IACS 10
120

Otherwise Unclassified Properties

Base Metal Price, % relative 33
10
Density, g/cm3 8.9
3.0
Embodied Carbon, kg CO2/kg material 3.5
7.9
Embodied Energy, MJ/kg 57
150
Embodied Water, L/kg 390
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
55
Resilience: Unit (Modulus of Resilience), kJ/m3 79
450
Stiffness to Weight: Axial, points 6.2
13
Stiffness to Weight: Bending, points 17
46
Strength to Weight: Axial, points 7.5
37
Strength to Weight: Bending, points 9.6
40
Thermal Diffusivity, mm2/s 15
58
Thermal Shock Resistance, points 9.4
18

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
90.9 to 95.2
Antimony (Sb), % 0 to 0.5
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 78 to 82
3.9 to 5.0
Iron (Fe), % 0 to 0.15
0 to 1.0
Lead (Pb), % 8.0 to 11
0
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0
0.4 to 1.2
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0.5 to 1.2
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 9.0 to 11
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0 to 0.8
0 to 0.25
Residuals, % 0 to 1.0
0 to 0.15