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A384.0 Aluminum vs. C87500 Brass

A384.0 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 A384.0 aluminum and the bottom bar is C87500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 74
110
Elongation at Break, % 2.5
18
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 28
42
Tensile Strength: Ultimate (UTS), MPa 330
460
Tensile Strength: Yield (Proof), MPa 170
190

Thermal Properties

Latent Heat of Fusion, J/g 550
260
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 610
920
Melting Onset (Solidus), °C 510
820
Specific Heat Capacity, J/kg-K 880
410
Thermal Conductivity, W/m-K 96
28
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 73
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
27
Density, g/cm3 2.8
8.3
Embodied Carbon, kg CO2/kg material 7.5
2.7
Embodied Energy, MJ/kg 140
44
Embodied Water, L/kg 1010
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
67
Resilience: Unit (Modulus of Resilience), kJ/m3 180
160
Stiffness to Weight: Axial, points 15
7.4
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 32
16
Strength to Weight: Bending, points 38
16
Thermal Diffusivity, mm2/s 39
8.3
Thermal Shock Resistance, points 15
17

Alloy Composition

Aluminum (Al), % 79.3 to 86.5
0 to 0.5
Copper (Cu), % 3.0 to 4.5
79 to 85
Iron (Fe), % 0 to 1.3
0
Lead (Pb), % 0
0 to 0.5
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.5
0
Silicon (Si), % 10.5 to 12
3.0 to 5.0
Tin (Sn), % 0 to 0.35
0
Zinc (Zn), % 0 to 1.0
12 to 16
Residuals, % 0
0 to 0.5