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C84800 Brass vs. 7108A Aluminum

C84800 brass belongs to the copper alloys classification, while 7108A aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (2, 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 C84800 brass and the bottom bar is 7108A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
69
Elongation at Break, % 18
11 to 13
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 39
26
Tensile Strength: Ultimate (UTS), MPa 230
350
Tensile Strength: Yield (Proof), MPa 100
290 to 300

Thermal Properties

Latent Heat of Fusion, J/g 180
380
Maximum Temperature: Mechanical, °C 150
210
Melting Completion (Liquidus), °C 950
630
Melting Onset (Solidus), °C 830
520
Specific Heat Capacity, J/kg-K 370
870
Thermal Conductivity, W/m-K 72
150
Thermal Expansion, µm/m-K 19
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
36
Electrical Conductivity: Equal Weight (Specific), % IACS 17
110

Otherwise Unclassified Properties

Base Metal Price, % relative 27
10
Density, g/cm3 8.6
2.9
Embodied Carbon, kg CO2/kg material 2.8
8.3
Embodied Energy, MJ/kg 46
150
Embodied Water, L/kg 340
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 34
38 to 44
Resilience: Unit (Modulus of Resilience), kJ/m3 53
610 to 640
Stiffness to Weight: Axial, points 6.6
13
Stiffness to Weight: Bending, points 18
47
Strength to Weight: Axial, points 7.3
33 to 34
Strength to Weight: Bending, points 9.6
38
Thermal Diffusivity, mm2/s 23
59
Thermal Shock Resistance, points 8.2
15 to 16

Alloy Composition


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Aluminum (Al), % 0 to 0.0050
91.6 to 94.4
Antimony (Sb), % 0 to 0.25
0
Chromium (Cr), % 0
0 to 0.040
Copper (Cu), % 75 to 77
0 to 0.050
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 0 to 0.4
0 to 0.3
Lead (Pb), % 5.5 to 7.0
0
Magnesium (Mg), % 0
0.7 to 1.5
Manganese (Mn), % 0
0 to 0.050
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0 to 0.2
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 0
0 to 0.030
Zinc (Zn), % 13 to 17
4.8 to 5.8
Zirconium (Zr), % 0
0.15 to 0.25
Residuals, % 0 to 0.7
0 to 0.15