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C35600 Brass vs. 2218 Aluminum

C35600 brass belongs to the copper alloys classification, while 2218 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 C35600 brass and the bottom bar is 2218 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
73
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 39
27
Tensile Strength: Ultimate (UTS), MPa 340 to 650
330 to 430

Thermal Properties

Latent Heat of Fusion, J/g 170
390
Maximum Temperature: Mechanical, °C 120
220
Melting Completion (Liquidus), °C 900
640
Melting Onset (Solidus), °C 890
510
Specific Heat Capacity, J/kg-K 380
870
Thermal Conductivity, W/m-K 120
140
Thermal Expansion, µm/m-K 21
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
37
Electrical Conductivity: Equal Weight (Specific), % IACS 29
110

Otherwise Unclassified Properties

Base Metal Price, % relative 23
11
Density, g/cm3 8.1
3.1
Embodied Carbon, kg CO2/kg material 2.6
8.2
Embodied Energy, MJ/kg 45
150
Embodied Water, L/kg 320
1130

Common Calculations

Stiffness to Weight: Axial, points 7.0
13
Stiffness to Weight: Bending, points 19
45
Strength to Weight: Axial, points 11 to 22
30 to 39
Strength to Weight: Bending, points 13 to 21
34 to 41
Thermal Diffusivity, mm2/s 38
52
Thermal Shock Resistance, points 11 to 22
15 to 19

Alloy Composition

Aluminum (Al), % 0
88.8 to 93.6
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 60 to 63
3.5 to 4.5
Iron (Fe), % 0 to 0.1
0 to 1.0
Lead (Pb), % 2.0 to 3.0
0
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0
1.7 to 2.3
Silicon (Si), % 0
0 to 0.9
Zinc (Zn), % 33.4 to 38
0 to 0.25
Residuals, % 0
0 to 0.15