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C68300 Brass vs. 2024 Aluminum

C68300 brass belongs to the copper alloys classification, while 2024 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, 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 C68300 brass and the bottom bar is 2024 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
71
Elongation at Break, % 15
4.0 to 16
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
27
Shear Strength, MPa 260
130 to 320
Tensile Strength: Ultimate (UTS), MPa 430
200 to 540
Tensile Strength: Yield (Proof), MPa 260
100 to 490

Thermal Properties

Latent Heat of Fusion, J/g 180
390
Maximum Temperature: Mechanical, °C 120
200
Melting Completion (Liquidus), °C 900
640
Melting Onset (Solidus), °C 890
500
Specific Heat Capacity, J/kg-K 390
880
Thermal Conductivity, W/m-K 120
120
Thermal Expansion, µm/m-K 20
23

Otherwise Unclassified Properties

Base Metal Price, % relative 23
11
Density, g/cm3 8.0
3.0
Embodied Carbon, kg CO2/kg material 2.8
8.3
Embodied Energy, MJ/kg 46
150
Embodied Water, L/kg 340
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 56
20 to 68
Resilience: Unit (Modulus of Resilience), kJ/m3 330
70 to 1680
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 20
46
Strength to Weight: Axial, points 15
18 to 50
Strength to Weight: Bending, points 16
25 to 49
Thermal Diffusivity, mm2/s 38
46
Thermal Shock Resistance, points 14
8.6 to 24

Alloy Composition

Aluminum (Al), % 0
90.7 to 94.7
Antimony (Sb), % 0.3 to 1.0
0
Cadmium (Cd), % 0 to 0.010
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 59 to 63
3.8 to 4.9
Iron (Fe), % 0
0 to 0.5
Lead (Pb), % 0 to 0.090
0
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0
0.3 to 0.9
Silicon (Si), % 0.3 to 1.0
0 to 0.5
Tin (Sn), % 0.050 to 0.2
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 34.2 to 40.4
0 to 0.25
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.15