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2618 Aluminum vs. CC762S Brass

2618 aluminum belongs to the aluminum alloys classification, while CC762S brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 2618 aluminum and the bottom bar is CC762S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
210
Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 5.8
7.3
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
43
Tensile Strength: Ultimate (UTS), MPa 420
840
Tensile Strength: Yield (Proof), MPa 350
540

Thermal Properties

Latent Heat of Fusion, J/g 390
200
Maximum Temperature: Mechanical, °C 210
160
Melting Completion (Liquidus), °C 640
920
Melting Onset (Solidus), °C 550
870
Specific Heat Capacity, J/kg-K 880
420
Thermal Conductivity, W/m-K 160
51
Thermal Expansion, µm/m-K 22
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
28
Electrical Conductivity: Equal Weight (Specific), % IACS 110
32

Otherwise Unclassified Properties

Base Metal Price, % relative 11
24
Density, g/cm3 2.9
8.0
Embodied Carbon, kg CO2/kg material 8.3
3.1
Embodied Energy, MJ/kg 150
51
Embodied Water, L/kg 1150
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
54
Resilience: Unit (Modulus of Resilience), kJ/m3 850
1290
Stiffness to Weight: Axial, points 13
7.8
Stiffness to Weight: Bending, points 47
20
Strength to Weight: Axial, points 40
29
Strength to Weight: Bending, points 42
25
Thermal Diffusivity, mm2/s 62
15
Thermal Shock Resistance, points 19
27

Alloy Composition

Aluminum (Al), % 92.4 to 94.9
3.0 to 7.0
Antimony (Sb), % 0
0 to 0.030
Copper (Cu), % 1.9 to 2.7
57 to 67
Iron (Fe), % 0.9 to 1.3
1.5 to 4.0
Lead (Pb), % 0
0 to 0.2
Magnesium (Mg), % 1.3 to 1.8
0
Manganese (Mn), % 0
2.5 to 5.0
Nickel (Ni), % 0.9 to 1.2
0 to 3.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.1 to 0.25
0 to 0.1
Tin (Sn), % 0
0 to 0.2
Titanium (Ti), % 0.040 to 0.1
0
Zinc (Zn), % 0 to 0.1
13.4 to 36
Residuals, % 0 to 0.15
0