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8090 Aluminum vs. C24000 Brass

8090 aluminum belongs to the aluminum alloys classification, while C24000 brass belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, 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 C24000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
110
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 25
42
Tensile Strength: Ultimate (UTS), MPa 340 to 490
310 to 640

Thermal Properties

Latent Heat of Fusion, J/g 400
190
Maximum Temperature: Mechanical, °C 190
160
Melting Completion (Liquidus), °C 660
1000
Melting Onset (Solidus), °C 600
970
Specific Heat Capacity, J/kg-K 960
390
Thermal Conductivity, W/m-K 95 to 160
140
Thermal Expansion, µm/m-K 24
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
32
Electrical Conductivity: Equal Weight (Specific), % IACS 66
34

Otherwise Unclassified Properties

Base Metal Price, % relative 18
27
Density, g/cm3 2.7
8.5
Embodied Carbon, kg CO2/kg material 8.6
2.6
Embodied Energy, MJ/kg 170
43
Embodied Water, L/kg 1160
320

Common Calculations

Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 34 to 49
10 to 21
Strength to Weight: Bending, points 39 to 50
12 to 20
Thermal Diffusivity, mm2/s 36 to 60
43
Thermal Shock Resistance, points 15 to 22
10 to 22

Alloy Composition

Aluminum (Al), % 93 to 98.4
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 1.0 to 1.6
78.5 to 81.5
Iron (Fe), % 0 to 0.3
0 to 0.050
Lead (Pb), % 0
0 to 0.050
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
0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
18.2 to 21.5
Zirconium (Zr), % 0.040 to 0.16
0
Residuals, % 0
0 to 0.2