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C24000 Brass vs. 5051A Aluminum

C24000 brass belongs to the copper alloys classification, while 5051A 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 5051A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
68
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 42
26
Tensile Strength: Ultimate (UTS), MPa 310 to 640
170

Thermal Properties

Latent Heat of Fusion, J/g 190
400
Maximum Temperature: Mechanical, °C 160
190
Melting Completion (Liquidus), °C 1000
640
Melting Onset (Solidus), °C 970
610
Specific Heat Capacity, J/kg-K 390
900
Thermal Conductivity, W/m-K 140
150
Thermal Expansion, µm/m-K 19
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
39
Electrical Conductivity: Equal Weight (Specific), % IACS 34
130

Otherwise Unclassified Properties

Base Metal Price, % relative 27
9.5
Density, g/cm3 8.5
2.7
Embodied Carbon, kg CO2/kg material 2.6
8.5
Embodied Energy, MJ/kg 43
150
Embodied Water, L/kg 320
1190

Common Calculations

Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 19
50
Strength to Weight: Axial, points 10 to 21
17 to 18
Strength to Weight: Bending, points 12 to 20
25
Thermal Diffusivity, mm2/s 43
63
Thermal Shock Resistance, points 10 to 22
7.6

Alloy Composition

Aluminum (Al), % 0
96.1 to 98.6
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 78.5 to 81.5
0 to 0.050
Iron (Fe), % 0 to 0.050
0 to 0.45
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0
1.4 to 2.1
Manganese (Mn), % 0
0 to 0.25
Silicon (Si), % 0
0 to 0.3
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 18.2 to 21.5
0 to 0.2
Residuals, % 0
0 to 0.15