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6081 Aluminum vs. Monel K-500

6081 aluminum belongs to the aluminum alloys classification, while Monel K-500 belongs to the nickel 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 6081 aluminum and the bottom bar is Monel K-500.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
160
Elongation at Break, % 9.0
25 to 36
Fatigue Strength, MPa 110
260 to 560
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
61
Shear Strength, MPa 180
430 to 700
Tensile Strength: Ultimate (UTS), MPa 310
640 to 1100
Tensile Strength: Yield (Proof), MPa 270
310 to 880

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Maximum Temperature: Mechanical, °C 160
900
Melting Completion (Liquidus), °C 640
1350
Melting Onset (Solidus), °C 610
1320
Specific Heat Capacity, J/kg-K 900
440
Thermal Conductivity, W/m-K 180
18
Thermal Expansion, µm/m-K 23
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 160
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
50
Density, g/cm3 2.7
8.7
Embodied Carbon, kg CO2/kg material 8.3
8.1
Embodied Energy, MJ/kg 150
120
Embodied Water, L/kg 1180
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
180 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 540
300 to 2420
Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 50
21
Strength to Weight: Axial, points 32
21 to 35
Strength to Weight: Bending, points 37
19 to 27
Thermal Diffusivity, mm2/s 74
4.8
Thermal Shock Resistance, points 14
21 to 36

Alloy Composition

Aluminum (Al), % 96.3 to 98.6
2.3 to 3.2
Carbon (C), % 0
0 to 0.18
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.1
27 to 33
Iron (Fe), % 0 to 0.5
0 to 2.0
Magnesium (Mg), % 0.6 to 1.0
0
Manganese (Mn), % 0.1 to 0.45
0 to 1.5
Nickel (Ni), % 0
63 to 70.4
Silicon (Si), % 0.7 to 1.1
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.15
0.35 to 0.85
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0