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771.0 Aluminum vs. C63020 Bronze

771.0 aluminum belongs to the aluminum alloys classification, while C63020 bronze belongs to the copper alloys. There are 26 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 771.0 aluminum and the bottom bar is C63020 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
120
Elongation at Break, % 1.7 to 6.5
6.8
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
44
Tensile Strength: Ultimate (UTS), MPa 250 to 370
1020
Tensile Strength: Yield (Proof), MPa 210 to 350
740

Thermal Properties

Latent Heat of Fusion, J/g 380
230
Maximum Temperature: Mechanical, °C 180
230
Melting Completion (Liquidus), °C 630
1070
Melting Onset (Solidus), °C 620
1020
Specific Heat Capacity, J/kg-K 870
450
Thermal Conductivity, W/m-K 140 to 150
40
Thermal Expansion, µm/m-K 24
18

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
29
Density, g/cm3 3.0
8.2
Embodied Carbon, kg CO2/kg material 8.0
3.6
Embodied Energy, MJ/kg 150
58
Embodied Water, L/kg 1130
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4 to 20
63
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 900
2320
Stiffness to Weight: Axial, points 13
8.0
Stiffness to Weight: Bending, points 46
20
Strength to Weight: Axial, points 23 to 35
34
Strength to Weight: Bending, points 29 to 39
27
Thermal Diffusivity, mm2/s 54 to 58
11
Thermal Shock Resistance, points 11 to 16
35

Alloy Composition

Aluminum (Al), % 90.5 to 92.5
10 to 11
Chromium (Cr), % 0.060 to 0.2
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 0.15
4.0 to 5.5
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 0.8 to 1.0
0
Manganese (Mn), % 0 to 0.1
0 to 1.5
Nickel (Ni), % 0
4.2 to 6.0
Silicon (Si), % 0 to 0.15
0
Tin (Sn), % 0
0 to 0.25
Titanium (Ti), % 0.1 to 0.2
0
Zinc (Zn), % 6.5 to 7.5
0 to 0.3
Residuals, % 0
0 to 0.5