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518.0 Aluminum vs. Nickel 685

518.0 aluminum belongs to the aluminum alloys classification, while nickel 685 belongs to the nickel alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 518.0 aluminum and the bottom bar is nickel 685.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
350
Elastic (Young's, Tensile) Modulus, GPa 67
200
Elongation at Break, % 5.0
17
Fatigue Strength, MPa 140
470
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
77
Shear Strength, MPa 200
770
Tensile Strength: Ultimate (UTS), MPa 310
1250
Tensile Strength: Yield (Proof), MPa 190
850

Thermal Properties

Latent Heat of Fusion, J/g 390
320
Maximum Temperature: Mechanical, °C 170
1000
Melting Completion (Liquidus), °C 620
1380
Melting Onset (Solidus), °C 560
1330
Specific Heat Capacity, J/kg-K 900
460
Thermal Conductivity, W/m-K 98
13
Thermal Expansion, µm/m-K 24
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
75
Density, g/cm3 2.7
8.4
Embodied Carbon, kg CO2/kg material 9.4
10
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1160
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14
190
Resilience: Unit (Modulus of Resilience), kJ/m3 270
1820
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
23
Strength to Weight: Axial, points 32
42
Strength to Weight: Bending, points 38
31
Thermal Diffusivity, mm2/s 40
3.3
Thermal Shock Resistance, points 14
37

Alloy Composition

Aluminum (Al), % 88.1 to 92.5
1.2 to 1.6
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0
0.030 to 0.1
Chromium (Cr), % 0
18 to 21
Cobalt (Co), % 0
12 to 15
Copper (Cu), % 0 to 0.25
0 to 0.5
Iron (Fe), % 0 to 1.8
0 to 2.0
Magnesium (Mg), % 7.5 to 8.5
0
Manganese (Mn), % 0 to 0.35
0 to 1.0
Molybdenum (Mo), % 0
3.5 to 5.0
Nickel (Ni), % 0 to 0.15
49.6 to 62.5
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.35
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.15
0
Titanium (Ti), % 0
2.8 to 3.3
Zinc (Zn), % 0 to 0.15
0.020 to 0.12
Residuals, % 0 to 0.25
0