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2024 Aluminum vs. C46500 Brass

2024 aluminum belongs to the aluminum alloys classification, while C46500 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 2024 aluminum and the bottom bar is C46500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
100
Elongation at Break, % 4.0 to 16
18 to 50
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 27
40
Shear Strength, MPa 130 to 320
280 to 380
Tensile Strength: Ultimate (UTS), MPa 200 to 540
380 to 610
Tensile Strength: Yield (Proof), MPa 100 to 490
190 to 490

Thermal Properties

Latent Heat of Fusion, J/g 390
170
Maximum Temperature: Mechanical, °C 200
120
Melting Completion (Liquidus), °C 640
900
Melting Onset (Solidus), °C 500
890
Specific Heat Capacity, J/kg-K 880
380
Thermal Conductivity, W/m-K 120
120
Thermal Expansion, µm/m-K 23
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
26
Electrical Conductivity: Equal Weight (Specific), % IACS 90
29

Otherwise Unclassified Properties

Base Metal Price, % relative 11
23
Density, g/cm3 3.0
8.0
Embodied Carbon, kg CO2/kg material 8.3
2.7
Embodied Energy, MJ/kg 150
47
Embodied Water, L/kg 1140
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 68
99 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 70 to 1680
170 to 1170
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 46
20
Strength to Weight: Axial, points 18 to 50
13 to 21
Strength to Weight: Bending, points 25 to 49
15 to 20
Thermal Diffusivity, mm2/s 46
38
Thermal Shock Resistance, points 8.6 to 24
13 to 20

Alloy Composition

Aluminum (Al), % 90.7 to 94.7
0
Arsenic (As), % 0
0.020 to 0.060
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.8 to 4.9
59 to 62
Iron (Fe), % 0 to 0.5
0 to 0.1
Lead (Pb), % 0
0 to 0.2
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0.3 to 0.9
0
Silicon (Si), % 0 to 0.5
0
Tin (Sn), % 0
0.5 to 1.0
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
36.2 to 40.5
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0
0 to 0.4