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2618A Aluminum vs. Grade CU5MCuC Nickel

2618A aluminum belongs to the aluminum alloys classification, while grade CU5MCuC nickel belongs to the nickel alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, 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 2618A aluminum and the bottom bar is grade CU5MCuC nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 4.5
22
Fatigue Strength, MPa 120
170
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Tensile Strength: Ultimate (UTS), MPa 440
580
Tensile Strength: Yield (Proof), MPa 410
270

Thermal Properties

Latent Heat of Fusion, J/g 390
310
Maximum Temperature: Mechanical, °C 230
980
Melting Completion (Liquidus), °C 670
1420
Melting Onset (Solidus), °C 560
1370
Specific Heat Capacity, J/kg-K 880
460
Thermal Expansion, µm/m-K 23
13

Otherwise Unclassified Properties

Base Metal Price, % relative 11
45
Density, g/cm3 3.0
8.2
Embodied Carbon, kg CO2/kg material 8.4
7.7
Embodied Energy, MJ/kg 150
110
Embodied Water, L/kg 1150
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1180
190
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 41
20
Strength to Weight: Bending, points 44
19
Thermal Shock Resistance, points 19
16

Alloy Composition

Aluminum (Al), % 91.5 to 95.2
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
19.5 to 23.5
Copper (Cu), % 1.8 to 2.7
1.5 to 3.5
Iron (Fe), % 0.9 to 1.4
22.2 to 37.9
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0 to 0.25
0 to 1.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0.8 to 1.4
38 to 44
Niobium (Nb), % 0
0.6 to 1.2
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.15 to 0.25
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.15
0
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0 to 0.15
0