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C34000 Brass vs. EN AC-21100 Aluminum

C34000 brass belongs to the copper alloys classification, while EN AC-21100 aluminum belongs to the aluminum alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, 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 C34000 brass and the bottom bar is EN AC-21100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
71
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
27
Tensile Strength: Ultimate (UTS), MPa 340 to 650
340 to 350

Thermal Properties

Latent Heat of Fusion, J/g 170
390
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 930
670
Melting Onset (Solidus), °C 890
550
Specific Heat Capacity, J/kg-K 380
880
Thermal Conductivity, W/m-K 120
130
Thermal Expansion, µm/m-K 21
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
34
Electrical Conductivity: Equal Weight (Specific), % IACS 29
100

Otherwise Unclassified Properties

Base Metal Price, % relative 24
11
Density, g/cm3 8.1
3.0
Embodied Carbon, kg CO2/kg material 2.6
8.0
Embodied Energy, MJ/kg 45
150
Embodied Water, L/kg 320
1150

Common Calculations

Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 19
46
Strength to Weight: Axial, points 11 to 22
31 to 33
Strength to Weight: Bending, points 13 to 21
36 to 37
Thermal Diffusivity, mm2/s 37
48
Thermal Shock Resistance, points 11 to 22
15

Alloy Composition

Aluminum (Al), % 0
93.4 to 95.7
Copper (Cu), % 62 to 65
4.2 to 5.2
Iron (Fe), % 0 to 0.1
0 to 0.19
Lead (Pb), % 0.8 to 1.5
0
Manganese (Mn), % 0
0 to 0.55
Silicon (Si), % 0
0 to 0.18
Titanium (Ti), % 0
0.15 to 0.3
Zinc (Zn), % 33 to 37.2
0 to 0.070
Residuals, % 0
0 to 0.1