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C24000 Brass vs. EN AC-21200 Aluminum

C24000 brass belongs to the copper alloys classification, while EN AC-21200 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 C24000 brass and the bottom bar is EN AC-21200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 42
27
Tensile Strength: Ultimate (UTS), MPa 310 to 640
410 to 440

Thermal Properties

Latent Heat of Fusion, J/g 190
390
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 1000
660
Melting Onset (Solidus), °C 970
550
Specific Heat Capacity, J/kg-K 390
880
Thermal Conductivity, W/m-K 140
130
Thermal Expansion, µm/m-K 19
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
34
Electrical Conductivity: Equal Weight (Specific), % IACS 34
100

Otherwise Unclassified Properties

Base Metal Price, % relative 27
10
Density, g/cm3 8.5
3.0
Embodied Carbon, kg CO2/kg material 2.6
8.0
Embodied Energy, MJ/kg 43
150
Embodied Water, L/kg 320
1150

Common Calculations

Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 19
46
Strength to Weight: Axial, points 10 to 21
38 to 40
Strength to Weight: Bending, points 12 to 20
41 to 43
Thermal Diffusivity, mm2/s 43
49
Thermal Shock Resistance, points 10 to 22
18 to 19

Alloy Composition

Aluminum (Al), % 0
93.3 to 95.7
Copper (Cu), % 78.5 to 81.5
4.0 to 5.0
Iron (Fe), % 0 to 0.050
0 to 0.2
Lead (Pb), % 0 to 0.050
0 to 0.030
Magnesium (Mg), % 0
0.15 to 0.5
Manganese (Mn), % 0
0.2 to 0.5
Nickel (Ni), % 0
0 to 0.050
Silicon (Si), % 0
0 to 0.1
Tin (Sn), % 0
0 to 0.030
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 18.2 to 21.5
0 to 0.1
Residuals, % 0
0 to 0.1