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C66200 Brass vs. 2124 Aluminum

C66200 brass belongs to the copper alloys classification, while 2124 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, 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 C66200 brass and the bottom bar is 2124 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Elongation at Break, % 8.0 to 15
5.7
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 42
27
Shear Strength, MPa 270 to 300
280
Tensile Strength: Ultimate (UTS), MPa 450 to 520
490
Tensile Strength: Yield (Proof), MPa 410 to 480
430

Thermal Properties

Latent Heat of Fusion, J/g 200
390
Maximum Temperature: Mechanical, °C 180
190
Melting Completion (Liquidus), °C 1070
640
Melting Onset (Solidus), °C 1030
500
Specific Heat Capacity, J/kg-K 390
880
Thermal Conductivity, W/m-K 150
150
Thermal Expansion, µm/m-K 18
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
38
Electrical Conductivity: Equal Weight (Specific), % IACS 36
110

Otherwise Unclassified Properties

Base Metal Price, % relative 29
10
Density, g/cm3 8.7
3.0
Embodied Carbon, kg CO2/kg material 2.7
8.2
Embodied Energy, MJ/kg 43
150
Embodied Water, L/kg 320
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40 to 66
27
Resilience: Unit (Modulus of Resilience), kJ/m3 760 to 1030
1290
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 19
46
Strength to Weight: Axial, points 14 to 17
45
Strength to Weight: Bending, points 15 to 16
46
Thermal Diffusivity, mm2/s 45
58
Thermal Shock Resistance, points 16 to 18
21

Alloy Composition

Aluminum (Al), % 0
91.3 to 94.7
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 86.6 to 91
3.8 to 4.9
Iron (Fe), % 0 to 0.050
0 to 0.3
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0
0.3 to 0.9
Nickel (Ni), % 0.3 to 1.0
0
Phosphorus (P), % 0.050 to 0.2
0
Silicon (Si), % 0
0 to 0.2
Tin (Sn), % 0.2 to 0.7
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 6.5 to 12.9
0 to 0.25
Residuals, % 0
0 to 0.15