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Monel 400 vs. 2124 Aluminum

Monel 400 belongs to the nickel alloys classification, while 2124 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 Monel 400 and the bottom bar is 2124 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
71
Elongation at Break, % 20 to 40
5.7
Fatigue Strength, MPa 230 to 290
130
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 62
27
Shear Strength, MPa 370 to 490
280
Tensile Strength: Ultimate (UTS), MPa 540 to 780
490
Tensile Strength: Yield (Proof), MPa 210 to 590
430

Thermal Properties

Latent Heat of Fusion, J/g 270
390
Maximum Temperature: Mechanical, °C 1000
190
Melting Completion (Liquidus), °C 1350
640
Melting Onset (Solidus), °C 1300
500
Specific Heat Capacity, J/kg-K 430
880
Thermal Conductivity, W/m-K 23
150
Thermal Expansion, µm/m-K 14
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
38
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
110

Otherwise Unclassified Properties

Base Metal Price, % relative 50
10
Density, g/cm3 8.9
3.0
Embodied Carbon, kg CO2/kg material 7.9
8.2
Embodied Energy, MJ/kg 110
150
Embodied Water, L/kg 250
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
27
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1080
1290
Stiffness to Weight: Axial, points 10
13
Stiffness to Weight: Bending, points 21
46
Strength to Weight: Axial, points 17 to 25
45
Strength to Weight: Bending, points 17 to 21
46
Thermal Diffusivity, mm2/s 6.1
58
Thermal Shock Resistance, points 17 to 25
21

Alloy Composition

Aluminum (Al), % 0
91.3 to 94.7
Carbon (C), % 0 to 0.3
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 28 to 34
3.8 to 4.9
Iron (Fe), % 0 to 2.5
0 to 0.3
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0 to 2.0
0.3 to 0.9
Nickel (Ni), % 63 to 72
0
Silicon (Si), % 0 to 0.5
0 to 0.2
Sulfur (S), % 0 to 0.024
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15