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6063 Aluminum vs. CC761S Brass

6063 aluminum belongs to the aluminum alloys classification, while CC761S brass belongs to the copper alloys. There are 29 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 6063 aluminum and the bottom bar is CC761S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 25 to 95
150
Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 7.3 to 21
8.7
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
42
Tensile Strength: Ultimate (UTS), MPa 110 to 300
540
Tensile Strength: Yield (Proof), MPa 49 to 270
340

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 650
960
Melting Onset (Solidus), °C 620
910
Specific Heat Capacity, J/kg-K 900
410
Thermal Conductivity, W/m-K 190 to 220
27
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 49 to 58
40
Electrical Conductivity: Equal Weight (Specific), % IACS 160 to 190
43

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
27
Density, g/cm3 2.7
8.3
Embodied Carbon, kg CO2/kg material 8.3
2.7
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 1190
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 27
41
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 540
530
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 11 to 31
18
Strength to Weight: Bending, points 18 to 37
18
Thermal Diffusivity, mm2/s 79 to 89
8.0
Thermal Shock Resistance, points 4.8 to 13
19

Alloy Composition

Aluminum (Al), % 97.5 to 99.4
0 to 0.1
Antimony (Sb), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.1
78 to 83
Iron (Fe), % 0 to 0.35
0 to 0.6
Lead (Pb), % 0
0 to 0.8
Magnesium (Mg), % 0.45 to 0.9
0
Manganese (Mn), % 0 to 0.1
0 to 0.2
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.2 to 0.6
3.0 to 5.0
Tin (Sn), % 0
0 to 0.3
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
8.9 to 19
Residuals, % 0 to 0.15
0