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7108A Aluminum vs. CC766S Brass

7108A aluminum belongs to the aluminum alloys classification, while CC766S brass 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 CC766S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 11 to 13
28
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 350
500
Tensile Strength: Yield (Proof), MPa 290 to 300
190

Thermal Properties

Latent Heat of Fusion, J/g 380
180
Maximum Temperature: Mechanical, °C 210
130
Melting Completion (Liquidus), °C 630
840
Melting Onset (Solidus), °C 520
800
Specific Heat Capacity, J/kg-K 870
390
Thermal Conductivity, W/m-K 150
89
Thermal Expansion, µm/m-K 24
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
32
Electrical Conductivity: Equal Weight (Specific), % IACS 110
36

Otherwise Unclassified Properties

Base Metal Price, % relative 10
24
Density, g/cm3 2.9
8.0
Embodied Carbon, kg CO2/kg material 8.3
2.8
Embodied Energy, MJ/kg 150
48
Embodied Water, L/kg 1150
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 44
110
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 640
180
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 47
20
Strength to Weight: Axial, points 33 to 34
17
Strength to Weight: Bending, points 38
18
Thermal Diffusivity, mm2/s 59
28
Thermal Shock Resistance, points 15 to 16
17

Alloy Composition

Aluminum (Al), % 91.6 to 94.4
0.3 to 1.8
Antimony (Sb), % 0
0 to 0.1
Chromium (Cr), % 0 to 0.040
0
Copper (Cu), % 0 to 0.050
58 to 64
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
0 to 0.5
Lead (Pb), % 0
0 to 0.5
Magnesium (Mg), % 0.7 to 1.5
0
Manganese (Mn), % 0 to 0.050
0 to 0.5
Nickel (Ni), % 0
0 to 2.0
Silicon (Si), % 0 to 0.2
0 to 0.6
Tin (Sn), % 0
0 to 0.5
Titanium (Ti), % 0 to 0.030
0
Zinc (Zn), % 4.8 to 5.8
29.5 to 41.7
Zirconium (Zr), % 0.15 to 0.25
0
Residuals, % 0 to 0.15
0