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6066 Aluminum vs. C69700 Brass

6066 aluminum belongs to the aluminum alloys classification, while C69700 brass belongs to the copper 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 6066 aluminum and the bottom bar is C69700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 7.8 to 17
25
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
41
Shear Strength, MPa 95 to 240
300
Tensile Strength: Ultimate (UTS), MPa 160 to 400
470
Tensile Strength: Yield (Proof), MPa 93 to 360
230

Thermal Properties

Latent Heat of Fusion, J/g 410
240
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 650
930
Melting Onset (Solidus), °C 560
880
Specific Heat Capacity, J/kg-K 890
400
Thermal Conductivity, W/m-K 150
43
Thermal Expansion, µm/m-K 23
19

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
26
Density, g/cm3 2.8
8.3
Embodied Carbon, kg CO2/kg material 8.3
2.7
Embodied Energy, MJ/kg 150
44
Embodied Water, L/kg 1160
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23 to 52
99
Resilience: Unit (Modulus of Resilience), kJ/m3 61 to 920
250
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 49
19
Strength to Weight: Axial, points 16 to 39
16
Strength to Weight: Bending, points 23 to 43
16
Thermal Diffusivity, mm2/s 61
13
Thermal Shock Resistance, points 6.9 to 17
16

Alloy Composition

Aluminum (Al), % 93 to 97
0
Chromium (Cr), % 0 to 0.4
0
Copper (Cu), % 0.7 to 1.2
75 to 80
Iron (Fe), % 0 to 0.5
0 to 0.2
Lead (Pb), % 0
0.5 to 1.5
Magnesium (Mg), % 0.8 to 1.4
0
Manganese (Mn), % 0.6 to 1.1
0 to 0.4
Silicon (Si), % 0.9 to 1.8
2.5 to 3.5
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.25
13.9 to 22
Residuals, % 0
0 to 0.5