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8090 Aluminum vs. C87900 Brass

8090 aluminum belongs to the aluminum alloys classification, while C87900 brass belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 C87900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
110
Elongation at Break, % 3.5 to 13
25
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 25
41
Tensile Strength: Ultimate (UTS), MPa 340 to 490
480
Tensile Strength: Yield (Proof), MPa 210 to 420
240

Thermal Properties

Latent Heat of Fusion, J/g 400
190
Maximum Temperature: Mechanical, °C 190
130
Melting Completion (Liquidus), °C 660
930
Melting Onset (Solidus), °C 600
900
Specific Heat Capacity, J/kg-K 960
390
Thermal Conductivity, W/m-K 95 to 160
120
Thermal Expansion, µm/m-K 24
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
15
Electrical Conductivity: Equal Weight (Specific), % IACS 66
17

Otherwise Unclassified Properties

Base Metal Price, % relative 18
24
Density, g/cm3 2.7
8.1
Embodied Carbon, kg CO2/kg material 8.6
2.7
Embodied Energy, MJ/kg 170
46
Embodied Water, L/kg 1160
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 41
100
Resilience: Unit (Modulus of Resilience), kJ/m3 340 to 1330
270
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 50
20
Strength to Weight: Axial, points 34 to 49
17
Strength to Weight: Bending, points 39 to 50
17
Thermal Diffusivity, mm2/s 36 to 60
37
Thermal Shock Resistance, points 15 to 22
16

Alloy Composition

Aluminum (Al), % 93 to 98.4
0 to 0.15
Antimony (Sb), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 1.0 to 1.6
63 to 69.2
Iron (Fe), % 0 to 0.3
0 to 0.4
Lead (Pb), % 0
0 to 0.25
Lithium (Li), % 2.2 to 2.7
0
Magnesium (Mg), % 0.6 to 1.3
0
Manganese (Mn), % 0 to 0.1
0 to 0.15
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.2
0.8 to 1.2
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
0 to 0.25
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
30 to 36
Zirconium (Zr), % 0.040 to 0.16
0
Residuals, % 0 to 0.15
0