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6101 Aluminum vs. Nickel 690

6101 aluminum belongs to the aluminum alloys classification, while nickel 690 belongs to the nickel alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, 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 6101 aluminum and the bottom bar is nickel 690.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 10 to 25
3.4 to 34
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
79

Thermal Properties

Latent Heat of Fusion, J/g 400
320
Maximum Temperature: Mechanical, °C 160
1010
Melting Completion (Liquidus), °C 650
1380
Melting Onset (Solidus), °C 620
1340
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 220 to 230
14
Thermal Expansion, µm/m-K 23
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 57 to 60
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 190 to 200
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
50
Density, g/cm3 2.7
8.3
Embodied Carbon, kg CO2/kg material 8.3
8.2
Embodied Energy, MJ/kg 150
120
Embodied Water, L/kg 1190
290

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Thermal Diffusivity, mm2/s 89 to 93
3.5

Alloy Composition

Aluminum (Al), % 97.6 to 99.4
0
Boron (B), % 0 to 0.060
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.030
27 to 31
Copper (Cu), % 0 to 0.1
0 to 0.5
Iron (Fe), % 0 to 0.5
7.0 to 11
Magnesium (Mg), % 0.35 to 0.8
0
Manganese (Mn), % 0 to 0.030
0 to 0.5
Nickel (Ni), % 0
58 to 66
Silicon (Si), % 0.3 to 0.7
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.1
0