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C87500 Brass vs. 3102 Aluminum

C87500 brass belongs to the copper alloys classification, while 3102 aluminum belongs to the aluminum 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 C87500 brass and the bottom bar is 3102 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
69
Elongation at Break, % 18
23 to 28
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 42
26
Tensile Strength: Ultimate (UTS), MPa 460
92 to 100
Tensile Strength: Yield (Proof), MPa 190
28 to 34

Thermal Properties

Latent Heat of Fusion, J/g 260
400
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 920
640
Melting Onset (Solidus), °C 820
640
Specific Heat Capacity, J/kg-K 410
900
Thermal Conductivity, W/m-K 28
230
Thermal Expansion, µm/m-K 18
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.7
56
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
190

Otherwise Unclassified Properties

Base Metal Price, % relative 27
9.0
Density, g/cm3 8.3
2.7
Embodied Carbon, kg CO2/kg material 2.7
8.2
Embodied Energy, MJ/kg 44
150
Embodied Water, L/kg 300
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 67
16 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 160
5.8 to 8.3
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 19
50
Strength to Weight: Axial, points 16
9.4 to 10
Strength to Weight: Bending, points 16
17 to 18
Thermal Diffusivity, mm2/s 8.3
92
Thermal Shock Resistance, points 17
4.1 to 4.4

Alloy Composition

Aluminum (Al), % 0 to 0.5
97.9 to 99.95
Copper (Cu), % 79 to 85
0 to 0.1
Iron (Fe), % 0
0 to 0.7
Lead (Pb), % 0 to 0.5
0
Manganese (Mn), % 0
0.050 to 0.4
Silicon (Si), % 3.0 to 5.0
0 to 0.4
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 12 to 16
0 to 0.3
Residuals, % 0
0 to 0.15