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C38000 Brass vs. 2618 Aluminum

C38000 brass belongs to the copper alloys classification, while 2618 aluminum belongs to the aluminum alloys. There are 27 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 C38000 brass and the bottom bar is 2618 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
71
Elongation at Break, % 17
5.8
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 39
27
Shear Strength, MPa 230
260
Tensile Strength: Ultimate (UTS), MPa 380
420
Tensile Strength: Yield (Proof), MPa 120
350

Thermal Properties

Latent Heat of Fusion, J/g 170
390
Maximum Temperature: Mechanical, °C 110
210
Melting Completion (Liquidus), °C 800
640
Melting Onset (Solidus), °C 760
550
Specific Heat Capacity, J/kg-K 380
880
Thermal Conductivity, W/m-K 110
160
Thermal Expansion, µm/m-K 21
22

Otherwise Unclassified Properties

Base Metal Price, % relative 22
11
Density, g/cm3 8.0
2.9
Embodied Carbon, kg CO2/kg material 2.7
8.3
Embodied Energy, MJ/kg 46
150
Embodied Water, L/kg 330
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 50
23
Resilience: Unit (Modulus of Resilience), kJ/m3 74
850
Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 19
47
Strength to Weight: Axial, points 13
40
Strength to Weight: Bending, points 14
42
Thermal Diffusivity, mm2/s 37
62
Thermal Shock Resistance, points 13
19

Alloy Composition

Aluminum (Al), % 0 to 0.5
92.4 to 94.9
Copper (Cu), % 55 to 60
1.9 to 2.7
Iron (Fe), % 0 to 0.35
0.9 to 1.3
Lead (Pb), % 1.5 to 2.5
0
Magnesium (Mg), % 0
1.3 to 1.8
Nickel (Ni), % 0
0.9 to 1.2
Silicon (Si), % 0
0.1 to 0.25
Tin (Sn), % 0 to 0.3
0
Titanium (Ti), % 0
0.040 to 0.1
Zinc (Zn), % 35.9 to 43.5
0 to 0.1
Residuals, % 0
0 to 0.15