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2018 Aluminum vs. C67500 Bronze

2018 aluminum belongs to the aluminum alloys classification, while C67500 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 2018 aluminum and the bottom bar is C67500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
100
Elongation at Break, % 9.6
14 to 33
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 27
40
Shear Strength, MPa 270
270 to 350
Tensile Strength: Ultimate (UTS), MPa 420
430 to 580
Tensile Strength: Yield (Proof), MPa 310
170 to 370

Thermal Properties

Latent Heat of Fusion, J/g 390
170
Maximum Temperature: Mechanical, °C 220
120
Melting Completion (Liquidus), °C 640
890
Melting Onset (Solidus), °C 510
870
Specific Heat Capacity, J/kg-K 870
390
Thermal Conductivity, W/m-K 150
110
Thermal Expansion, µm/m-K 22
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
24
Electrical Conductivity: Equal Weight (Specific), % IACS 120
27

Otherwise Unclassified Properties

Base Metal Price, % relative 11
23
Density, g/cm3 3.1
8.0
Embodied Carbon, kg CO2/kg material 8.1
2.8
Embodied Energy, MJ/kg 150
47
Embodied Water, L/kg 1130
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37
61 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 670
130 to 650
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 45
20
Strength to Weight: Axial, points 38
15 to 20
Strength to Weight: Bending, points 41
16 to 19
Thermal Diffusivity, mm2/s 57
34
Thermal Shock Resistance, points 19
14 to 19

Alloy Composition

Aluminum (Al), % 89.7 to 94.4
0 to 0.25
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.5 to 4.5
57 to 60
Iron (Fe), % 0 to 1.0
0.8 to 2.0
Lead (Pb), % 0
0 to 0.2
Magnesium (Mg), % 0.45 to 0.9
0
Manganese (Mn), % 0 to 0.2
0.050 to 0.5
Nickel (Ni), % 1.7 to 2.3
0
Silicon (Si), % 0 to 0.9
0
Tin (Sn), % 0
0.5 to 1.5
Zinc (Zn), % 0 to 0.25
35.1 to 41.7
Residuals, % 0
0 to 0.5