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Nickel 690 vs. 4007 Aluminum

Nickel 690 belongs to the nickel alloys classification, while 4007 aluminum belongs to the aluminum alloys. 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 4007 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
32 to 44
Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 3.4 to 34
5.1 to 23
Fatigue Strength, MPa 180 to 300
46 to 88
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
27
Shear Strength, MPa 420 to 570
80 to 90
Tensile Strength: Ultimate (UTS), MPa 640 to 990
130 to 160
Tensile Strength: Yield (Proof), MPa 250 to 760
50 to 120

Thermal Properties

Latent Heat of Fusion, J/g 320
410
Maximum Temperature: Mechanical, °C 1010
170
Melting Completion (Liquidus), °C 1380
650
Melting Onset (Solidus), °C 1340
590
Specific Heat Capacity, J/kg-K 470
890
Thermal Conductivity, W/m-K 14
170
Thermal Expansion, µm/m-K 14
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
42
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
140

Otherwise Unclassified Properties

Base Metal Price, % relative 50
9.5
Density, g/cm3 8.3
2.8
Embodied Carbon, kg CO2/kg material 8.2
8.1
Embodied Energy, MJ/kg 120
150
Embodied Water, L/kg 290
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 170
7.4 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 1440
18 to 110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
49
Strength to Weight: Axial, points 21 to 33
12 to 15
Strength to Weight: Bending, points 20 to 27
20 to 23
Thermal Diffusivity, mm2/s 3.5
67
Thermal Shock Resistance, points 16 to 25
5.5 to 6.7

Alloy Composition

Aluminum (Al), % 0
94.1 to 97.6
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 27 to 31
0.050 to 0.25
Cobalt (Co), % 0
0 to 0.050
Copper (Cu), % 0 to 0.5
0 to 0.2
Iron (Fe), % 7.0 to 11
0.4 to 1.0
Magnesium (Mg), % 0
0 to 0.2
Manganese (Mn), % 0 to 0.5
0.8 to 1.5
Nickel (Ni), % 58 to 66
0.15 to 0.7
Silicon (Si), % 0 to 0.5
1.0 to 1.7
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15

Comparable Variants