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238.0 Aluminum vs. Nickel 725

238.0 aluminum belongs to the aluminum alloys classification, while nickel 725 belongs to the nickel alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, 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 238.0 aluminum and the bottom bar is nickel 725.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
200
Elongation at Break, % 1.5
34
Fatigue Strength, MPa 110
260
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
78
Tensile Strength: Ultimate (UTS), MPa 210
860
Tensile Strength: Yield (Proof), MPa 170
350

Thermal Properties

Latent Heat of Fusion, J/g 430
320
Maximum Temperature: Mechanical, °C 170
980
Melting Completion (Liquidus), °C 600
1340
Melting Onset (Solidus), °C 510
1270
Specific Heat Capacity, J/kg-K 840
440
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 67
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
75
Density, g/cm3 3.4
8.5
Embodied Carbon, kg CO2/kg material 7.4
13
Embodied Energy, MJ/kg 140
190
Embodied Water, L/kg 1040
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
240
Resilience: Unit (Modulus of Resilience), kJ/m3 180
300
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 42
23
Strength to Weight: Axial, points 17
28
Strength to Weight: Bending, points 23
24
Thermal Shock Resistance, points 9.1
23

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0 to 0.35
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
19 to 22.5
Copper (Cu), % 9.5 to 10.5
0
Iron (Fe), % 1.0 to 1.5
2.3 to 15.3
Magnesium (Mg), % 0 to 0.25
0
Manganese (Mn), % 0
0 to 0.35
Molybdenum (Mo), % 0
7.0 to 9.5
Nickel (Ni), % 0
55 to 59
Niobium (Nb), % 0
2.8 to 4.0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 3.6 to 4.4
0 to 0.2
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.7
Zinc (Zn), % 1.0 to 1.5
0