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7022 Aluminum vs. C74400 Nickel Silver

7022 aluminum belongs to the aluminum alloys classification, while C74400 nickel silver belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, 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 C74400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 6.3 to 8.0
43
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 26
39
Shear Strength, MPa 290 to 320
240
Tensile Strength: Ultimate (UTS), MPa 490 to 540
350
Tensile Strength: Yield (Proof), MPa 390 to 460
120

Thermal Properties

Latent Heat of Fusion, J/g 380
180
Maximum Temperature: Mechanical, °C 200
140
Melting Completion (Liquidus), °C 640
930
Melting Onset (Solidus), °C 480
910
Specific Heat Capacity, J/kg-K 870
390
Thermal Conductivity, W/m-K 140
120
Thermal Expansion, µm/m-K 24
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 21
26
Electrical Conductivity: Equal Weight (Specific), % IACS 65
29

Otherwise Unclassified Properties

Base Metal Price, % relative 10
25
Density, g/cm3 2.9
8.2
Embodied Carbon, kg CO2/kg material 8.5
2.9
Embodied Energy, MJ/kg 150
48
Embodied Water, L/kg 1130
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29 to 40
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1100 to 1500
63
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 47
19
Strength to Weight: Axial, points 47 to 51
12
Strength to Weight: Bending, points 47 to 50
14
Thermal Diffusivity, mm2/s 54
37
Thermal Shock Resistance, points 21 to 23
12

Alloy Composition

Aluminum (Al), % 87.9 to 92.4
0
Chromium (Cr), % 0.1 to 0.3
0
Copper (Cu), % 0.5 to 1.0
62 to 66
Iron (Fe), % 0 to 0.5
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 2.6 to 3.7
0
Manganese (Mn), % 0.1 to 0.4
0
Nickel (Ni), % 0
2.0 to 4.0
Silicon (Si), % 0 to 0.5
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 4.3 to 5.2
29.6 to 36
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0
0 to 0.3