MakeItFrom.com
Menu (ESC)

Nickel 690 vs. 2218 Aluminum

Nickel 690 belongs to the nickel alloys classification, while 2218 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 690 and the bottom bar is 2218 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
95 to 110
Elastic (Young's, Tensile) Modulus, GPa 200
73
Elongation at Break, % 3.4 to 34
6.8 to 10
Fatigue Strength, MPa 180 to 300
110
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
27
Shear Strength, MPa 420 to 570
210 to 250
Tensile Strength: Ultimate (UTS), MPa 640 to 990
330 to 430
Tensile Strength: Yield (Proof), MPa 250 to 760
260 to 310

Thermal Properties

Latent Heat of Fusion, J/g 320
390
Maximum Temperature: Mechanical, °C 1010
220
Melting Completion (Liquidus), °C 1380
640
Melting Onset (Solidus), °C 1340
510
Specific Heat Capacity, J/kg-K 470
870
Thermal Conductivity, W/m-K 14
140
Thermal Expansion, µm/m-K 14
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
37
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
110

Otherwise Unclassified Properties

Base Metal Price, % relative 50
11
Density, g/cm3 8.3
3.1
Embodied Carbon, kg CO2/kg material 8.2
8.2
Embodied Energy, MJ/kg 120
150
Embodied Water, L/kg 290
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 170
27 to 31
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 1440
450 to 650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
45
Strength to Weight: Axial, points 21 to 33
30 to 39
Strength to Weight: Bending, points 20 to 27
34 to 41
Thermal Diffusivity, mm2/s 3.5
52
Thermal Shock Resistance, points 16 to 25
15 to 19

Alloy Composition

Aluminum (Al), % 0
88.8 to 93.6
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 27 to 31
0 to 0.1
Copper (Cu), % 0 to 0.5
3.5 to 4.5
Iron (Fe), % 7.0 to 11
0 to 1.0
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0 to 0.5
0 to 0.2
Nickel (Ni), % 58 to 66
1.7 to 2.3
Silicon (Si), % 0 to 0.5
0 to 0.9
Sulfur (S), % 0 to 0.015
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15