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1050 Aluminum vs. CC761S Brass

1050 aluminum belongs to the aluminum alloys classification, while CC761S 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 CC761S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 4.6 to 37
8.7
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
42
Tensile Strength: Ultimate (UTS), MPa 76 to 140
540
Tensile Strength: Yield (Proof), MPa 25 to 120
340

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 640
960
Melting Onset (Solidus), °C 650
910
Specific Heat Capacity, J/kg-K 900
410
Thermal Conductivity, W/m-K 230
27
Thermal Expansion, µm/m-K 24
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
40
Electrical Conductivity: Equal Weight (Specific), % IACS 200
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 160
45
Embodied Water, L/kg 1200
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.4 to 22
41
Resilience: Unit (Modulus of Resilience), kJ/m3 4.6 to 110
530
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 7.8 to 14
18
Strength to Weight: Bending, points 15 to 22
18
Thermal Diffusivity, mm2/s 94
8.0
Thermal Shock Resistance, points 3.4 to 6.2
19

Alloy Composition

Aluminum (Al), % 99.5 to 100
0 to 0.1
Antimony (Sb), % 0
0 to 0.050
Copper (Cu), % 0 to 0.050
78 to 83
Iron (Fe), % 0 to 0.4
0 to 0.6
Lead (Pb), % 0
0 to 0.8
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0 to 0.2
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.25
3.0 to 5.0
Tin (Sn), % 0
0 to 0.3
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
8.9 to 19