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7108A Aluminum vs. C95700 Bronze

7108A aluminum belongs to the aluminum alloys classification, while C95700 bronze belongs to the copper alloys. There are 28 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 7108A aluminum and the bottom bar is C95700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
130
Elongation at Break, % 11 to 13
23
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
47
Tensile Strength: Ultimate (UTS), MPa 350
680
Tensile Strength: Yield (Proof), MPa 290 to 300
310

Thermal Properties

Latent Heat of Fusion, J/g 380
230
Maximum Temperature: Mechanical, °C 210
220
Melting Completion (Liquidus), °C 630
990
Melting Onset (Solidus), °C 520
950
Specific Heat Capacity, J/kg-K 870
440
Thermal Conductivity, W/m-K 150
12
Thermal Expansion, µm/m-K 24
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 110
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
26
Density, g/cm3 2.9
8.2
Embodied Carbon, kg CO2/kg material 8.3
3.3
Embodied Energy, MJ/kg 150
54
Embodied Water, L/kg 1150
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 44
130
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 640
390
Stiffness to Weight: Axial, points 13
8.5
Stiffness to Weight: Bending, points 47
20
Strength to Weight: Axial, points 33 to 34
23
Strength to Weight: Bending, points 38
21
Thermal Diffusivity, mm2/s 59
3.3
Thermal Shock Resistance, points 15 to 16
21

Alloy Composition

Aluminum (Al), % 91.6 to 94.4
7.0 to 8.5
Chromium (Cr), % 0 to 0.040
0
Copper (Cu), % 0 to 0.050
71 to 78.5
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
2.0 to 4.0
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 0.7 to 1.5
0
Manganese (Mn), % 0 to 0.050
11 to 14
Nickel (Ni), % 0
1.5 to 3.0
Silicon (Si), % 0 to 0.2
0 to 0.1
Titanium (Ti), % 0 to 0.030
0
Zinc (Zn), % 4.8 to 5.8
0
Zirconium (Zr), % 0.15 to 0.25
0
Residuals, % 0
0 to 0.5