MakeItFrom.com
Menu (ESC)

Nickel 30 vs. 7021 Aluminum

Nickel 30 belongs to the nickel alloys classification, while 7021 aluminum belongs to the aluminum 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 nickel 30 and the bottom bar is 7021 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
69
Elongation at Break, % 34
9.4
Fatigue Strength, MPa 200
150
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 82
26
Shear Strength, MPa 440
270
Tensile Strength: Ultimate (UTS), MPa 660
460
Tensile Strength: Yield (Proof), MPa 270
390

Thermal Properties

Latent Heat of Fusion, J/g 320
380
Maximum Temperature: Mechanical, °C 1020
200
Melting Completion (Liquidus), °C 1480
630
Melting Onset (Solidus), °C 1430
510
Specific Heat Capacity, J/kg-K 450
870
Thermal Conductivity, W/m-K 10
150
Thermal Expansion, µm/m-K 13
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
38
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
120

Otherwise Unclassified Properties

Base Metal Price, % relative 60
9.5
Density, g/cm3 8.5
2.9
Embodied Carbon, kg CO2/kg material 9.4
8.3
Embodied Energy, MJ/kg 130
150
Embodied Water, L/kg 290
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
41
Resilience: Unit (Modulus of Resilience), kJ/m3 180
1110
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
47
Strength to Weight: Axial, points 22
44
Strength to Weight: Bending, points 20
45
Thermal Diffusivity, mm2/s 2.7
59
Thermal Shock Resistance, points 18
20

Alloy Composition

Aluminum (Al), % 0
90.7 to 93.7
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 28 to 31.5
0 to 0.050
Cobalt (Co), % 0 to 5.0
0
Copper (Cu), % 1.0 to 2.4
0 to 0.25
Iron (Fe), % 13 to 17
0 to 0.4
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0 to 0.030
0 to 0.1
Molybdenum (Mo), % 4.0 to 6.0
0
Nickel (Ni), % 30.2 to 52.2
0
Niobium (Nb), % 0.3 to 1.5
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.8
0 to 0.25
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0
0 to 0.1
Tungsten (W), % 1.5 to 4.0
0
Zinc (Zn), % 0
5.0 to 6.0
Zirconium (Zr), % 0
0.080 to 0.18
Residuals, % 0
0 to 0.15