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8079 Aluminum vs. C87500 Brass

8079 aluminum belongs to the aluminum alloys classification, while C87500 brass belongs to the copper alloys. There are 28 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 8079 aluminum and the bottom bar is C87500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 2.2
18
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
42
Tensile Strength: Ultimate (UTS), MPa 150
460
Tensile Strength: Yield (Proof), MPa 120
190

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 650
920
Melting Onset (Solidus), °C 640
820
Specific Heat Capacity, J/kg-K 900
410
Thermal Conductivity, W/m-K 230
28
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 58
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 190
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
27
Density, g/cm3 2.8
8.3
Embodied Carbon, kg CO2/kg material 8.2
2.7
Embodied Energy, MJ/kg 150
44
Embodied Water, L/kg 1180
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.1
67
Resilience: Unit (Modulus of Resilience), kJ/m3 110
160
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 15
16
Strength to Weight: Bending, points 22
16
Thermal Diffusivity, mm2/s 92
8.3
Thermal Shock Resistance, points 6.4
17

Alloy Composition

Aluminum (Al), % 98.1 to 99.3
0 to 0.5
Copper (Cu), % 0 to 0.050
79 to 85
Iron (Fe), % 0.7 to 1.3
0
Lead (Pb), % 0
0 to 0.5
Silicon (Si), % 0.050 to 0.3
3.0 to 5.0
Zinc (Zn), % 0 to 0.1
12 to 16
Residuals, % 0
0 to 0.5