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Nickel 690 vs. 705.0 Aluminum

Nickel 690 belongs to the nickel alloys classification, while 705.0 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 nickel 690 and the bottom bar is 705.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
62 to 65
Elastic (Young's, Tensile) Modulus, GPa 200
69
Elongation at Break, % 3.4 to 34
8.4 to 10
Fatigue Strength, MPa 180 to 300
63 to 98
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
26
Tensile Strength: Ultimate (UTS), MPa 640 to 990
240 to 260
Tensile Strength: Yield (Proof), MPa 250 to 760
130

Thermal Properties

Latent Heat of Fusion, J/g 320
390
Maximum Temperature: Mechanical, °C 1010
180
Melting Completion (Liquidus), °C 1380
640
Melting Onset (Solidus), °C 1340
610
Specific Heat Capacity, J/kg-K 470
890
Thermal Conductivity, W/m-K 14
140
Thermal Expansion, µm/m-K 14
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
34
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
110

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
8.4
Embodied Energy, MJ/kg 120
150
Embodied Water, L/kg 290
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 170
18 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 1440
120 to 130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
49
Strength to Weight: Axial, points 21 to 33
24 to 26
Strength to Weight: Bending, points 20 to 27
31 to 32
Thermal Diffusivity, mm2/s 3.5
55
Thermal Shock Resistance, points 16 to 25
11

Alloy Composition

Aluminum (Al), % 0
92.3 to 98.6
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 27 to 31
0 to 0.4
Copper (Cu), % 0 to 0.5
0 to 0.2
Iron (Fe), % 7.0 to 11
0 to 0.8
Magnesium (Mg), % 0
1.4 to 1.8
Manganese (Mn), % 0 to 0.5
0 to 0.6
Nickel (Ni), % 58 to 66
0
Silicon (Si), % 0 to 0.5
0 to 0.2
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 3.3
Residuals, % 0
0 to 0.15