MakeItFrom.com
Menu (ESC)

2618 Aluminum vs. C87500 Brass

2618 aluminum belongs to the aluminum alloys classification, while C87500 brass belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 C87500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 5.8
18
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
42
Tensile Strength: Ultimate (UTS), MPa 420
460
Tensile Strength: Yield (Proof), MPa 350
190

Thermal Properties

Latent Heat of Fusion, J/g 390
260
Maximum Temperature: Mechanical, °C 210
170
Melting Completion (Liquidus), °C 640
920
Melting Onset (Solidus), °C 550
820
Specific Heat Capacity, J/kg-K 880
410
Thermal Conductivity, W/m-K 160
28
Thermal Expansion, µm/m-K 22
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 110
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
27
Density, g/cm3 2.9
8.3
Embodied Carbon, kg CO2/kg material 8.3
2.7
Embodied Energy, MJ/kg 150
44
Embodied Water, L/kg 1150
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
67
Resilience: Unit (Modulus of Resilience), kJ/m3 850
160
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 47
19
Strength to Weight: Axial, points 40
16
Strength to Weight: Bending, points 42
16
Thermal Diffusivity, mm2/s 62
8.3
Thermal Shock Resistance, points 19
17

Alloy Composition

Aluminum (Al), % 92.4 to 94.9
0 to 0.5
Copper (Cu), % 1.9 to 2.7
79 to 85
Iron (Fe), % 0.9 to 1.3
0
Lead (Pb), % 0
0 to 0.5
Magnesium (Mg), % 1.3 to 1.8
0
Nickel (Ni), % 0.9 to 1.2
0
Silicon (Si), % 0.1 to 0.25
3.0 to 5.0
Titanium (Ti), % 0.040 to 0.1
0
Zinc (Zn), % 0 to 0.1
12 to 16
Residuals, % 0
0 to 0.5