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EN 2.4856 Nickel vs. 2218 Aluminum

EN 2.4856 nickel 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 EN 2.4856 nickel and the bottom bar is 2218 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
95 to 110
Elastic (Young's, Tensile) Modulus, GPa 200
73
Elongation at Break, % 28
6.8 to 10
Fatigue Strength, MPa 280
110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 79
27
Shear Strength, MPa 570
210 to 250
Tensile Strength: Ultimate (UTS), MPa 880
330 to 430
Tensile Strength: Yield (Proof), MPa 430
260 to 310

Thermal Properties

Latent Heat of Fusion, J/g 330
390
Maximum Temperature: Mechanical, °C 1000
220
Melting Completion (Liquidus), °C 1480
640
Melting Onset (Solidus), °C 1430
510
Specific Heat Capacity, J/kg-K 440
870
Thermal Conductivity, W/m-K 10
140
Thermal Expansion, µm/m-K 11
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
37
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
110

Otherwise Unclassified Properties

Base Metal Price, % relative 80
11
Density, g/cm3 8.6
3.1
Embodied Carbon, kg CO2/kg material 14
8.2
Embodied Energy, MJ/kg 190
150
Embodied Water, L/kg 290
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
27 to 31
Resilience: Unit (Modulus of Resilience), kJ/m3 440
450 to 650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
45
Strength to Weight: Axial, points 28
30 to 39
Strength to Weight: Bending, points 24
34 to 41
Thermal Diffusivity, mm2/s 2.7
52
Thermal Shock Resistance, points 29
15 to 19

Alloy Composition

Aluminum (Al), % 0 to 0.4
88.8 to 93.6
Carbon (C), % 0.030 to 0.1
0
Chromium (Cr), % 20 to 23
0 to 0.1
Cobalt (Co), % 0 to 1.0
0
Copper (Cu), % 0 to 0.5
3.5 to 4.5
Iron (Fe), % 0 to 5.0
0 to 1.0
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0 to 0.5
0 to 0.2
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 58 to 68.8
1.7 to 2.3
Niobium (Nb), % 3.2 to 4.2
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.5
0 to 0.9
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0 to 0.4
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15