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Nickel 690 vs. 238.0 Aluminum

Nickel 690 belongs to the nickel alloys classification, while 238.0 aluminum belongs to the aluminum alloys. There are 29 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 nickel 690 and the bottom bar is 238.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
76
Elongation at Break, % 3.4 to 34
1.5
Fatigue Strength, MPa 180 to 300
110
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
28
Tensile Strength: Ultimate (UTS), MPa 640 to 990
210
Tensile Strength: Yield (Proof), MPa 250 to 760
170

Thermal Properties

Latent Heat of Fusion, J/g 320
430
Maximum Temperature: Mechanical, °C 1010
170
Melting Completion (Liquidus), °C 1380
600
Melting Onset (Solidus), °C 1340
510
Specific Heat Capacity, J/kg-K 470
840
Thermal Conductivity, W/m-K 14
100
Thermal Expansion, µm/m-K 14
21

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 50
12
Density, g/cm3 8.3
3.4
Embodied Carbon, kg CO2/kg material 8.2
7.4
Embodied Energy, MJ/kg 120
140
Embodied Water, L/kg 290
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 170
2.9
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 1440
180
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
42
Strength to Weight: Axial, points 21 to 33
17
Strength to Weight: Bending, points 20 to 27
23
Thermal Diffusivity, mm2/s 3.5
37
Thermal Shock Resistance, points 16 to 25
9.1

Alloy Composition

Aluminum (Al), % 0
81.9 to 84.9
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 27 to 31
0
Copper (Cu), % 0 to 0.5
9.5 to 10.5
Iron (Fe), % 7.0 to 11
1.0 to 1.5
Magnesium (Mg), % 0
0 to 0.25
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 58 to 66
0
Silicon (Si), % 0 to 0.5
3.6 to 4.4
Sulfur (S), % 0 to 0.015
0
Zinc (Zn), % 0
1.0 to 1.5