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A242.0 Aluminum vs. CC764S Brass

A242.0 aluminum belongs to the aluminum alloys classification, while CC764S brass belongs to the copper alloys. There are 26 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 A242.0 aluminum and the bottom bar is CC764S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75
160
Elastic (Young's, Tensile) Modulus, GPa 73
110
Elongation at Break, % 1.6
15
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 27
41
Tensile Strength: Ultimate (UTS), MPa 220
680

Thermal Properties

Latent Heat of Fusion, J/g 390
180
Maximum Temperature: Mechanical, °C 210
130
Melting Completion (Liquidus), °C 680
850
Melting Onset (Solidus), °C 550
810
Specific Heat Capacity, J/kg-K 870
400
Thermal Conductivity, W/m-K 140
94
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
32
Electrical Conductivity: Equal Weight (Specific), % IACS 110
36

Otherwise Unclassified Properties

Base Metal Price, % relative 12
23
Density, g/cm3 3.1
7.9
Embodied Carbon, kg CO2/kg material 8.3
2.9
Embodied Energy, MJ/kg 150
49
Embodied Water, L/kg 1130
330

Common Calculations

Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 45
20
Strength to Weight: Axial, points 20
24
Strength to Weight: Bending, points 26
22
Thermal Diffusivity, mm2/s 52
30
Thermal Shock Resistance, points 9.3
22

Alloy Composition

Aluminum (Al), % 89.3 to 93.1
1.0 to 3.0
Antimony (Sb), % 0
0 to 0.050
Chromium (Cr), % 0.15 to 0.25
0
Copper (Cu), % 3.7 to 4.5
52 to 66
Iron (Fe), % 0 to 0.8
0.5 to 2.5
Lead (Pb), % 0
0 to 0.3
Magnesium (Mg), % 1.2 to 1.7
0
Manganese (Mn), % 0 to 0.1
0.3 to 4.0
Nickel (Ni), % 1.8 to 2.3
0 to 3.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.6
0 to 0.1
Tin (Sn), % 0
0 to 0.3
Titanium (Ti), % 0.070 to 0.2
0
Zinc (Zn), % 0 to 0.1
20.7 to 50.2
Residuals, % 0 to 0.15
0