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7108A Aluminum vs. C92700 Bronze

7108A aluminum belongs to the aluminum alloys classification, while C92700 bronze belongs to the copper alloys. There are 28 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 7108A aluminum and the bottom bar is C92700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 11 to 13
9.1
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 350
290
Tensile Strength: Yield (Proof), MPa 290 to 300
150

Thermal Properties

Latent Heat of Fusion, J/g 380
190
Maximum Temperature: Mechanical, °C 210
170
Melting Completion (Liquidus), °C 630
980
Melting Onset (Solidus), °C 520
840
Specific Heat Capacity, J/kg-K 870
370
Thermal Conductivity, W/m-K 150
47
Thermal Expansion, µm/m-K 24
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
11
Electrical Conductivity: Equal Weight (Specific), % IACS 110
11

Otherwise Unclassified Properties

Base Metal Price, % relative 10
35
Density, g/cm3 2.9
8.7
Embodied Carbon, kg CO2/kg material 8.3
3.6
Embodied Energy, MJ/kg 150
58
Embodied Water, L/kg 1150
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 44
22
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 640
110
Stiffness to Weight: Axial, points 13
6.8
Stiffness to Weight: Bending, points 47
18
Strength to Weight: Axial, points 33 to 34
9.1
Strength to Weight: Bending, points 38
11
Thermal Diffusivity, mm2/s 59
15
Thermal Shock Resistance, points 15 to 16
11

Alloy Composition

Aluminum (Al), % 91.6 to 94.4
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Chromium (Cr), % 0 to 0.040
0
Copper (Cu), % 0 to 0.050
86 to 89
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
0 to 0.2
Lead (Pb), % 0
1.0 to 2.5
Magnesium (Mg), % 0.7 to 1.5
0
Manganese (Mn), % 0 to 0.050
0
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0 to 0.2
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
9.0 to 11
Titanium (Ti), % 0 to 0.030
0
Zinc (Zn), % 4.8 to 5.8
0 to 0.7
Zirconium (Zr), % 0.15 to 0.25
0
Residuals, % 0
0 to 0.7