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7108 Aluminum vs. C69710 Brass

7108 aluminum belongs to the aluminum alloys classification, while C69710 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, 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 7108 aluminum and the bottom bar is C69710 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 11
25
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
41
Shear Strength, MPa 210
300
Tensile Strength: Ultimate (UTS), MPa 350
470
Tensile Strength: Yield (Proof), MPa 290
230

Thermal Properties

Latent Heat of Fusion, J/g 380
240
Maximum Temperature: Mechanical, °C 210
160
Melting Completion (Liquidus), °C 630
930
Melting Onset (Solidus), °C 530
880
Specific Heat Capacity, J/kg-K 880
400
Thermal Conductivity, W/m-K 150
40
Thermal Expansion, µm/m-K 24
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
26
Density, g/cm3 2.9
8.3
Embodied Carbon, kg CO2/kg material 8.3
2.7
Embodied Energy, MJ/kg 150
44
Embodied Water, L/kg 1150
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38
99
Resilience: Unit (Modulus of Resilience), kJ/m3 620
250
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 47
19
Strength to Weight: Axial, points 34
16
Strength to Weight: Bending, points 38
16
Thermal Diffusivity, mm2/s 59
12
Thermal Shock Resistance, points 16
16

Alloy Composition

Aluminum (Al), % 92.4 to 94.7
0
Arsenic (As), % 0
0.030 to 0.060
Copper (Cu), % 0 to 0.050
75 to 80
Iron (Fe), % 0 to 0.1
0 to 0.2
Lead (Pb), % 0
0.5 to 1.5
Magnesium (Mg), % 0.7 to 1.4
0
Manganese (Mn), % 0 to 0.050
0 to 0.4
Silicon (Si), % 0 to 0.1
2.5 to 3.5
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 4.5 to 5.5
13.8 to 22
Zirconium (Zr), % 0.12 to 0.25
0
Residuals, % 0
0 to 0.5