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C27000 Brass vs. 2024 Aluminum

C27000 brass belongs to the copper alloys classification, while 2024 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 2024 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
27
Tensile Strength: Ultimate (UTS), MPa 370 to 650
200 to 540

Thermal Properties

Latent Heat of Fusion, J/g 180
390
Maximum Temperature: Mechanical, °C 130
200
Melting Completion (Liquidus), °C 930
640
Melting Onset (Solidus), °C 900
500
Specific Heat Capacity, J/kg-K 390
880
Thermal Conductivity, W/m-K 120
120
Thermal Expansion, µm/m-K 20
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
30
Electrical Conductivity: Equal Weight (Specific), % IACS 30
90

Otherwise Unclassified Properties

Base Metal Price, % relative 24
11
Density, g/cm3 8.1
3.0
Embodied Carbon, kg CO2/kg material 2.7
8.3
Embodied Energy, MJ/kg 45
150
Embodied Water, L/kg 320
1140

Common Calculations

Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 19
46
Strength to Weight: Axial, points 13 to 22
18 to 50
Strength to Weight: Bending, points 14 to 21
25 to 49
Thermal Diffusivity, mm2/s 37
46
Thermal Shock Resistance, points 12 to 22
8.6 to 24

Alloy Composition

Aluminum (Al), % 0
90.7 to 94.7
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 63 to 68.5
3.8 to 4.9
Iron (Fe), % 0 to 0.1
0 to 0.5
Lead (Pb), % 0 to 0.070
0
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0
0.3 to 0.9
Silicon (Si), % 0
0 to 0.5
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 31 to 37
0 to 0.25
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.15