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C69400 Brass vs. EN AC-21200 Aluminum

C69400 brass belongs to the copper alloys classification, while EN AC-21200 aluminum belongs to the aluminum 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 C69400 brass and the bottom bar is EN AC-21200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Elongation at Break, % 17
3.9 to 6.2
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 42
27
Tensile Strength: Ultimate (UTS), MPa 570
410 to 440
Tensile Strength: Yield (Proof), MPa 270
270 to 360

Thermal Properties

Latent Heat of Fusion, J/g 260
390
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 920
660
Melting Onset (Solidus), °C 820
550
Specific Heat Capacity, J/kg-K 410
880
Thermal Conductivity, W/m-K 26
130
Thermal Expansion, µm/m-K 18
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.2
34
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
100

Otherwise Unclassified Properties

Base Metal Price, % relative 27
10
Density, g/cm3 8.3
3.0
Embodied Carbon, kg CO2/kg material 2.7
8.0
Embodied Energy, MJ/kg 44
150
Embodied Water, L/kg 300
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
16 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 340
500 to 930
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 19
46
Strength to Weight: Axial, points 19
38 to 40
Strength to Weight: Bending, points 18
41 to 43
Thermal Diffusivity, mm2/s 7.7
49
Thermal Shock Resistance, points 20
18 to 19

Alloy Composition

Aluminum (Al), % 0
93.3 to 95.7
Copper (Cu), % 80 to 83
4.0 to 5.0
Iron (Fe), % 0 to 0.2
0 to 0.2
Lead (Pb), % 0 to 0.3
0 to 0.030
Magnesium (Mg), % 0
0.15 to 0.5
Manganese (Mn), % 0
0.2 to 0.5
Nickel (Ni), % 0
0 to 0.050
Silicon (Si), % 3.5 to 4.5
0 to 0.1
Tin (Sn), % 0
0 to 0.030
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 11.5 to 16.5
0 to 0.1
Residuals, % 0
0 to 0.1