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384.0 Aluminum vs. CC761S Brass

384.0 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 (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 384.0 aluminum and the bottom bar is CC761S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
150
Elastic (Young's, Tensile) Modulus, GPa 74
110
Elongation at Break, % 2.5
8.7
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 28
42
Tensile Strength: Ultimate (UTS), MPa 330
540
Tensile Strength: Yield (Proof), MPa 170
340

Thermal Properties

Latent Heat of Fusion, J/g 550
260
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 580
960
Melting Onset (Solidus), °C 530
910
Specific Heat Capacity, J/kg-K 870
410
Thermal Conductivity, W/m-K 96
27
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
40
Electrical Conductivity: Equal Weight (Specific), % IACS 69
43

Otherwise Unclassified Properties

Base Metal Price, % relative 11
27
Density, g/cm3 2.9
8.3
Embodied Carbon, kg CO2/kg material 7.4
2.7
Embodied Energy, MJ/kg 140
45
Embodied Water, L/kg 1010
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
41
Resilience: Unit (Modulus of Resilience), kJ/m3 190
530
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 49
19
Strength to Weight: Axial, points 32
18
Strength to Weight: Bending, points 37
18
Thermal Diffusivity, mm2/s 39
8.0
Thermal Shock Resistance, points 15
19

Alloy Composition

Aluminum (Al), % 77.3 to 86.5
0 to 0.1
Antimony (Sb), % 0
0 to 0.050
Copper (Cu), % 3.0 to 4.5
78 to 83
Iron (Fe), % 0 to 1.3
0 to 0.6
Lead (Pb), % 0
0 to 0.8
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 0.2
Nickel (Ni), % 0 to 0.5
0 to 1.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 10.5 to 12
3.0 to 5.0
Tin (Sn), % 0 to 0.35
0 to 0.3
Zinc (Zn), % 0 to 3.0
8.9 to 19
Residuals, % 0 to 0.5
0