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C38000 Brass vs. 2011 Aluminum

C38000 brass belongs to the copper alloys classification, while 2011 aluminum belongs to the aluminum alloys. There are 27 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 C38000 brass and the bottom bar is 2011 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
71
Elongation at Break, % 17
8.5 to 18
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 39
27
Shear Strength, MPa 230
190 to 250
Tensile Strength: Ultimate (UTS), MPa 380
310 to 420
Tensile Strength: Yield (Proof), MPa 120
140 to 310

Thermal Properties

Latent Heat of Fusion, J/g 170
390
Maximum Temperature: Mechanical, °C 110
190
Melting Completion (Liquidus), °C 800
640
Melting Onset (Solidus), °C 760
540
Specific Heat Capacity, J/kg-K 380
870
Thermal Conductivity, W/m-K 110
140 to 170
Thermal Expansion, µm/m-K 21
23

Otherwise Unclassified Properties

Base Metal Price, % relative 22
11
Density, g/cm3 8.0
3.1
Embodied Carbon, kg CO2/kg material 2.7
7.9
Embodied Energy, MJ/kg 46
150
Embodied Water, L/kg 330
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 50
29 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 74
140 to 680
Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 19
44
Strength to Weight: Axial, points 13
27 to 37
Strength to Weight: Bending, points 14
32 to 40
Thermal Diffusivity, mm2/s 37
51 to 64
Thermal Shock Resistance, points 13
14 to 19

Alloy Composition

Aluminum (Al), % 0 to 0.5
91.3 to 94.6
Bismuth (Bi), % 0
0.2 to 0.6
Copper (Cu), % 55 to 60
5.0 to 6.0
Iron (Fe), % 0 to 0.35
0 to 0.7
Lead (Pb), % 1.5 to 2.5
0.2 to 0.6
Silicon (Si), % 0
0 to 0.4
Tin (Sn), % 0 to 0.3
0
Zinc (Zn), % 35.9 to 43.5
0 to 0.3
Residuals, % 0
0 to 0.15