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C69710 Brass vs. 7108 Aluminum

C69710 brass belongs to the copper alloys classification, while 7108 aluminum belongs to the aluminum 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 C69710 brass and the bottom bar is 7108 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

Aluminum (Al), % 0
92.4 to 94.7
Arsenic (As), % 0.030 to 0.060
0
Copper (Cu), % 75 to 80
0 to 0.050
Iron (Fe), % 0 to 0.2
0 to 0.1
Lead (Pb), % 0.5 to 1.5
0
Magnesium (Mg), % 0
0.7 to 1.4
Manganese (Mn), % 0 to 0.4
0 to 0.050
Silicon (Si), % 2.5 to 3.5
0 to 0.1
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 13.8 to 22
4.5 to 5.5
Zirconium (Zr), % 0
0.12 to 0.25
Residuals, % 0
0 to 0.15