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C69400 Brass vs. 4006 Aluminum

C69400 brass belongs to the copper alloys classification, while 4006 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 4006 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
69
Elongation at Break, % 17
3.4 to 24
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 42
26
Shear Strength, MPa 350
70 to 91
Tensile Strength: Ultimate (UTS), MPa 570
110 to 160
Tensile Strength: Yield (Proof), MPa 270
62 to 140

Thermal Properties

Latent Heat of Fusion, J/g 260
410
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 920
640
Melting Onset (Solidus), °C 820
620
Specific Heat Capacity, J/kg-K 410
900
Thermal Conductivity, W/m-K 26
220
Thermal Expansion, µm/m-K 18
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.2
56
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
180

Otherwise Unclassified Properties

Base Metal Price, % relative 27
9.0
Density, g/cm3 8.3
2.7
Embodied Carbon, kg CO2/kg material 2.7
8.1
Embodied Energy, MJ/kg 44
150
Embodied Water, L/kg 300
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
5.1 to 26
Resilience: Unit (Modulus of Resilience), kJ/m3 340
28 to 130
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 19
50
Strength to Weight: Axial, points 19
11 to 16
Strength to Weight: Bending, points 18
19 to 24
Thermal Diffusivity, mm2/s 7.7
89
Thermal Shock Resistance, points 20
4.9 to 7.0

Alloy Composition

Aluminum (Al), % 0
97.4 to 98.7
Chromium (Cr), % 0
0 to 0.2
Copper (Cu), % 80 to 83
0 to 0.1
Iron (Fe), % 0 to 0.2
0.5 to 0.8
Lead (Pb), % 0 to 0.3
0
Magnesium (Mg), % 0
0 to 0.010
Manganese (Mn), % 0
0 to 0.050
Silicon (Si), % 3.5 to 4.5
0.8 to 1.2
Zinc (Zn), % 11.5 to 16.5
0 to 0.050
Residuals, % 0
0 to 0.15