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C27000 Brass vs. 3103 Aluminum

C27000 brass belongs to the copper alloys classification, while 3103 aluminum belongs to the aluminum 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 C27000 brass and the bottom bar is 3103 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
70
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
26
Tensile Strength: Ultimate (UTS), MPa 370 to 650
100 to 220

Thermal Properties

Latent Heat of Fusion, J/g 180
400
Maximum Temperature: Mechanical, °C 130
190
Melting Completion (Liquidus), °C 930
660
Melting Onset (Solidus), °C 900
640
Specific Heat Capacity, J/kg-K 390
900
Thermal Conductivity, W/m-K 120
160
Thermal Expansion, µm/m-K 20
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
42
Electrical Conductivity: Equal Weight (Specific), % IACS 30
140

Otherwise Unclassified Properties

Base Metal Price, % relative 24
9.5
Density, g/cm3 8.1
2.8
Embodied Carbon, kg CO2/kg material 2.7
8.2
Embodied Energy, MJ/kg 45
150
Embodied Water, L/kg 320
1180

Common Calculations

Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 19
50
Strength to Weight: Axial, points 13 to 22
10 to 22
Strength to Weight: Bending, points 14 to 21
18 to 30
Thermal Diffusivity, mm2/s 37
64
Thermal Shock Resistance, points 12 to 22
4.6 to 9.9

Alloy Composition

Aluminum (Al), % 0
96.3 to 99.1
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 63 to 68.5
0 to 0.1
Iron (Fe), % 0 to 0.1
0 to 0.7
Lead (Pb), % 0 to 0.070
0
Magnesium (Mg), % 0
0 to 0.3
Manganese (Mn), % 0
0.9 to 1.5
Silicon (Si), % 0
0 to 0.5
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 31 to 37
0 to 0.2
Zirconium (Zr), % 0
0 to 0.1
Residuals, % 0
0 to 0.15