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7022 Aluminum vs. CC762S Brass

7022 aluminum belongs to the aluminum alloys classification, while CC762S brass belongs to the copper alloys. There are 28 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 7022 aluminum and the bottom bar is CC762S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 6.3 to 8.0
7.3
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 26
43
Tensile Strength: Ultimate (UTS), MPa 490 to 540
840
Tensile Strength: Yield (Proof), MPa 390 to 460
540

Thermal Properties

Latent Heat of Fusion, J/g 380
200
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 640
920
Melting Onset (Solidus), °C 480
870
Specific Heat Capacity, J/kg-K 870
420
Thermal Conductivity, W/m-K 140
51
Thermal Expansion, µm/m-K 24
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 21
28
Electrical Conductivity: Equal Weight (Specific), % IACS 65
32

Otherwise Unclassified Properties

Base Metal Price, % relative 10
24
Density, g/cm3 2.9
8.0
Embodied Carbon, kg CO2/kg material 8.5
3.1
Embodied Energy, MJ/kg 150
51
Embodied Water, L/kg 1130
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29 to 40
54
Resilience: Unit (Modulus of Resilience), kJ/m3 1100 to 1500
1290
Stiffness to Weight: Axial, points 13
7.8
Stiffness to Weight: Bending, points 47
20
Strength to Weight: Axial, points 47 to 51
29
Strength to Weight: Bending, points 47 to 50
25
Thermal Diffusivity, mm2/s 54
15
Thermal Shock Resistance, points 21 to 23
27

Alloy Composition

Aluminum (Al), % 87.9 to 92.4
3.0 to 7.0
Antimony (Sb), % 0
0 to 0.030
Chromium (Cr), % 0.1 to 0.3
0
Copper (Cu), % 0.5 to 1.0
57 to 67
Iron (Fe), % 0 to 0.5
1.5 to 4.0
Lead (Pb), % 0
0 to 0.2
Magnesium (Mg), % 2.6 to 3.7
0
Manganese (Mn), % 0.1 to 0.4
2.5 to 5.0
Nickel (Ni), % 0
0 to 3.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.1
Tin (Sn), % 0
0 to 0.2
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 4.3 to 5.2
13.4 to 36
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0 to 0.15
0