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7108A Aluminum vs. CC764S Brass

7108A aluminum belongs to the aluminum alloys classification, while CC764S 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 CC764S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 11 to 13
15
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
41
Tensile Strength: Ultimate (UTS), MPa 350
680
Tensile Strength: Yield (Proof), MPa 290 to 300
290

Thermal Properties

Latent Heat of Fusion, J/g 380
180
Maximum Temperature: Mechanical, °C 210
130
Melting Completion (Liquidus), °C 630
850
Melting Onset (Solidus), °C 520
810
Specific Heat Capacity, J/kg-K 870
400
Thermal Conductivity, W/m-K 150
94
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
23
Density, g/cm3 2.9
7.9
Embodied Carbon, kg CO2/kg material 8.3
2.9
Embodied Energy, MJ/kg 150
49
Embodied Water, L/kg 1150
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 44
80
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 640
390
Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 47
20
Strength to Weight: Axial, points 33 to 34
24
Strength to Weight: Bending, points 38
22
Thermal Diffusivity, mm2/s 59
30
Thermal Shock Resistance, points 15 to 16
22

Alloy Composition

Aluminum (Al), % 91.6 to 94.4
1.0 to 3.0
Antimony (Sb), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.040
0
Copper (Cu), % 0 to 0.050
52 to 66
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
0.5 to 2.5
Lead (Pb), % 0
0 to 0.3
Magnesium (Mg), % 0.7 to 1.5
0
Manganese (Mn), % 0 to 0.050
0.3 to 4.0
Nickel (Ni), % 0
0 to 3.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0 to 0.1
Tin (Sn), % 0
0 to 0.3
Titanium (Ti), % 0 to 0.030
0
Zinc (Zn), % 4.8 to 5.8
20.7 to 50.2
Zirconium (Zr), % 0.15 to 0.25
0
Residuals, % 0 to 0.15
0