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1050 Aluminum vs. CC767S Brass

1050 aluminum belongs to the aluminum alloys classification, while CC767S brass belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 1050 aluminum and the bottom bar is CC767S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 4.6 to 37
34
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 76 to 140
430
Tensile Strength: Yield (Proof), MPa 25 to 120
150

Thermal Properties

Latent Heat of Fusion, J/g 400
180
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 640
840
Melting Onset (Solidus), °C 650
790
Specific Heat Capacity, J/kg-K 900
390
Thermal Conductivity, W/m-K 230
110
Thermal Expansion, µm/m-K 24
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
32
Electrical Conductivity: Equal Weight (Specific), % IACS 200
36

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
23
Density, g/cm3 2.7
8.0
Embodied Carbon, kg CO2/kg material 8.3
2.7
Embodied Energy, MJ/kg 160
47
Embodied Water, L/kg 1200
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.4 to 22
110
Resilience: Unit (Modulus of Resilience), kJ/m3 4.6 to 110
100
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 50
20
Strength to Weight: Axial, points 7.8 to 14
15
Strength to Weight: Bending, points 15 to 22
16
Thermal Diffusivity, mm2/s 94
34
Thermal Shock Resistance, points 3.4 to 6.2
14

Alloy Composition

Aluminum (Al), % 99.5 to 100
0.1 to 0.8
Copper (Cu), % 0 to 0.050
58 to 64
Iron (Fe), % 0 to 0.4
0 to 0.5
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0 to 0.5
Nickel (Ni), % 0
0 to 1.0
Silicon (Si), % 0 to 0.25
0 to 0.2
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
32.8 to 41.9