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4006 Aluminum vs. CC765S Brass

4006 aluminum belongs to the aluminum alloys classification, while CC765S brass belongs to the copper 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 4006 aluminum and the bottom bar is CC765S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 28 to 45
130
Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 3.4 to 24
21
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
42
Tensile Strength: Ultimate (UTS), MPa 110 to 160
540
Tensile Strength: Yield (Proof), MPa 62 to 140
220

Thermal Properties

Latent Heat of Fusion, J/g 410
180
Maximum Temperature: Mechanical, °C 160
140
Melting Completion (Liquidus), °C 640
860
Melting Onset (Solidus), °C 620
820
Specific Heat Capacity, J/kg-K 900
400
Thermal Conductivity, W/m-K 220
91
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
30
Electrical Conductivity: Equal Weight (Specific), % IACS 180
34

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
24
Density, g/cm3 2.7
8.0
Embodied Carbon, kg CO2/kg material 8.1
3.0
Embodied Energy, MJ/kg 150
51
Embodied Water, L/kg 1180
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.1 to 26
90
Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 130
220
Stiffness to Weight: Axial, points 14
7.6
Stiffness to Weight: Bending, points 50
20
Strength to Weight: Axial, points 11 to 16
19
Strength to Weight: Bending, points 19 to 24
18
Thermal Diffusivity, mm2/s 89
28
Thermal Shock Resistance, points 4.9 to 7.0
17

Alloy Composition

Aluminum (Al), % 97.4 to 98.7
0.5 to 2.5
Antimony (Sb), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.1
51 to 65
Iron (Fe), % 0.5 to 0.8
0.5 to 2.0
Lead (Pb), % 0
0 to 0.5
Magnesium (Mg), % 0 to 0.010
0
Manganese (Mn), % 0 to 0.050
0.3 to 3.0
Nickel (Ni), % 0
0 to 6.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.8 to 1.2
0 to 0.1
Tin (Sn), % 0
0 to 1.0
Zinc (Zn), % 0 to 0.050
19.8 to 47.7
Residuals, % 0 to 0.15
0