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2018 Aluminum vs. C90700 Bronze

2018 aluminum belongs to the aluminum alloys classification, while C90700 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 C90700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
90
Elastic (Young's, Tensile) Modulus, GPa 73
110
Elongation at Break, % 9.6
12
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
40
Tensile Strength: Ultimate (UTS), MPa 420
330
Tensile Strength: Yield (Proof), MPa 310
180

Thermal Properties

Latent Heat of Fusion, J/g 390
190
Maximum Temperature: Mechanical, °C 220
170
Melting Completion (Liquidus), °C 640
1000
Melting Onset (Solidus), °C 510
830
Specific Heat Capacity, J/kg-K 870
370
Thermal Conductivity, W/m-K 150
71
Thermal Expansion, µm/m-K 22
18

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 11
35
Density, g/cm3 3.1
8.7
Embodied Carbon, kg CO2/kg material 8.1
3.7
Embodied Energy, MJ/kg 150
60
Embodied Water, L/kg 1130
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37
34
Resilience: Unit (Modulus of Resilience), kJ/m3 670
150
Stiffness to Weight: Axial, points 13
6.9
Stiffness to Weight: Bending, points 45
18
Strength to Weight: Axial, points 38
10
Strength to Weight: Bending, points 41
12
Thermal Diffusivity, mm2/s 57
22
Thermal Shock Resistance, points 19
12

Alloy Composition

Aluminum (Al), % 89.7 to 94.4
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.5 to 4.5
88 to 90
Iron (Fe), % 0 to 1.0
0 to 0.15
Lead (Pb), % 0
0 to 0.5
Magnesium (Mg), % 0.45 to 0.9
0
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 1.7 to 2.3
0 to 0.5
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0 to 0.9
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
10 to 12
Zinc (Zn), % 0 to 0.25
0 to 0.5
Residuals, % 0
0 to 0.6