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8090 Aluminum vs. C87500 Brass

8090 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 (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 8090 aluminum and the bottom bar is C87500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
110
Elongation at Break, % 3.5 to 13
18
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 25
42
Tensile Strength: Ultimate (UTS), MPa 340 to 490
460
Tensile Strength: Yield (Proof), MPa 210 to 420
190

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Maximum Temperature: Mechanical, °C 190
170
Melting Completion (Liquidus), °C 660
920
Melting Onset (Solidus), °C 600
820
Specific Heat Capacity, J/kg-K 960
410
Thermal Conductivity, W/m-K 95 to 160
28
Thermal Expansion, µm/m-K 24
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 66
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 18
27
Density, g/cm3 2.7
8.3
Embodied Carbon, kg CO2/kg material 8.6
2.7
Embodied Energy, MJ/kg 170
44
Embodied Water, L/kg 1160
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 41
67
Resilience: Unit (Modulus of Resilience), kJ/m3 340 to 1330
160
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 34 to 49
16
Strength to Weight: Bending, points 39 to 50
16
Thermal Diffusivity, mm2/s 36 to 60
8.3
Thermal Shock Resistance, points 15 to 22
17

Alloy Composition

Aluminum (Al), % 93 to 98.4
0 to 0.5
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 1.0 to 1.6
79 to 85
Iron (Fe), % 0 to 0.3
0
Lead (Pb), % 0
0 to 0.5
Lithium (Li), % 2.2 to 2.7
0
Magnesium (Mg), % 0.6 to 1.3
0
Manganese (Mn), % 0 to 0.1
0
Silicon (Si), % 0 to 0.2
3.0 to 5.0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
12 to 16
Zirconium (Zr), % 0.040 to 0.16
0
Residuals, % 0
0 to 0.5