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7022 Aluminum vs. Nickel 30

7022 aluminum belongs to the aluminum alloys classification, while nickel 30 belongs to the nickel alloys. 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 nickel 30.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
210
Elongation at Break, % 6.3 to 8.0
34
Fatigue Strength, MPa 140 to 170
200
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 26
82
Shear Strength, MPa 290 to 320
440
Tensile Strength: Ultimate (UTS), MPa 490 to 540
660
Tensile Strength: Yield (Proof), MPa 390 to 460
270

Thermal Properties

Latent Heat of Fusion, J/g 380
320
Maximum Temperature: Mechanical, °C 200
1020
Melting Completion (Liquidus), °C 640
1480
Melting Onset (Solidus), °C 480
1430
Specific Heat Capacity, J/kg-K 870
450
Thermal Conductivity, W/m-K 140
10
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 21
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 65
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 10
60
Density, g/cm3 2.9
8.5
Embodied Carbon, kg CO2/kg material 8.5
9.4
Embodied Energy, MJ/kg 150
130
Embodied Water, L/kg 1130
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29 to 40
180
Resilience: Unit (Modulus of Resilience), kJ/m3 1100 to 1500
180
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
23
Strength to Weight: Axial, points 47 to 51
22
Strength to Weight: Bending, points 47 to 50
20
Thermal Diffusivity, mm2/s 54
2.7
Thermal Shock Resistance, points 21 to 23
18

Alloy Composition

Aluminum (Al), % 87.9 to 92.4
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0.1 to 0.3
28 to 31.5
Cobalt (Co), % 0
0 to 5.0
Copper (Cu), % 0.5 to 1.0
1.0 to 2.4
Iron (Fe), % 0 to 0.5
13 to 17
Magnesium (Mg), % 2.6 to 3.7
0
Manganese (Mn), % 0.1 to 0.4
0 to 0.030
Molybdenum (Mo), % 0
4.0 to 6.0
Nickel (Ni), % 0
30.2 to 52.2
Niobium (Nb), % 0
0.3 to 1.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 0.8
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.2
0
Tungsten (W), % 0
1.5 to 4.0
Zinc (Zn), % 4.3 to 5.2
0
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0 to 0.15
0