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6105 Aluminum vs. C63020 Bronze

6105 aluminum belongs to the aluminum alloys classification, while C63020 bronze belongs to the copper alloys. There are 27 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 6105 aluminum and the bottom bar is C63020 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
120
Elongation at Break, % 9.0 to 16
6.8
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
44
Shear Strength, MPa 120 to 170
600
Tensile Strength: Ultimate (UTS), MPa 190 to 280
1020
Tensile Strength: Yield (Proof), MPa 120 to 270
740

Thermal Properties

Latent Heat of Fusion, J/g 410
230
Maximum Temperature: Mechanical, °C 160
230
Melting Completion (Liquidus), °C 650
1070
Melting Onset (Solidus), °C 600
1020
Specific Heat Capacity, J/kg-K 900
450
Thermal Conductivity, W/m-K 180 to 190
40
Thermal Expansion, µm/m-K 23
18

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
29
Density, g/cm3 2.7
8.2
Embodied Carbon, kg CO2/kg material 8.3
3.6
Embodied Energy, MJ/kg 150
58
Embodied Water, L/kg 1180
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25 to 27
63
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 550
2320
Stiffness to Weight: Axial, points 14
8.0
Stiffness to Weight: Bending, points 51
20
Strength to Weight: Axial, points 20 to 29
34
Strength to Weight: Bending, points 28 to 35
27
Thermal Diffusivity, mm2/s 72 to 79
11
Thermal Shock Resistance, points 8.6 to 12
35

Alloy Composition

Aluminum (Al), % 97.2 to 99
10 to 11
Chromium (Cr), % 0 to 0.1
0 to 0.050
Cobalt (Co), % 0
0 to 0.2
Copper (Cu), % 0 to 0.1
74.7 to 81.8
Iron (Fe), % 0 to 0.35
4.0 to 5.5
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 0.45 to 0.8
0
Manganese (Mn), % 0 to 0.1
0 to 1.5
Nickel (Ni), % 0
4.2 to 6.0
Silicon (Si), % 0.6 to 1.0
0
Tin (Sn), % 0
0 to 0.25
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
0 to 0.3
Residuals, % 0
0 to 0.5