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As-fabricated Nickel 718 vs. ISO-WD21150-F

As-fabricated nickel 718 belongs to the nickel alloys classification, while ISO-WD21150-F belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 as-fabricated nickel 718 and the bottom bar is ISO-WD21150-F.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
45
Elongation at Break, % 50
11
Fatigue Strength, MPa 460
120
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
17
Shear Strength, MPa 660
150
Tensile Strength: Ultimate (UTS), MPa 930
260
Tensile Strength: Yield (Proof), MPa 510
160

Thermal Properties

Latent Heat of Fusion, J/g 310
350
Maximum Temperature: Mechanical, °C 980
110
Melting Completion (Liquidus), °C 1340
600
Melting Onset (Solidus), °C 1260
550
Specific Heat Capacity, J/kg-K 450
990
Thermal Conductivity, W/m-K 11
100
Thermal Expansion, µm/m-K 13
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
19
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
100

Otherwise Unclassified Properties

Base Metal Price, % relative 75
12
Density, g/cm3 8.3
1.7
Embodied Carbon, kg CO2/kg material 13
23
Embodied Energy, MJ/kg 190
160
Embodied Water, L/kg 250
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 390
24
Resilience: Unit (Modulus of Resilience), kJ/m3 660
280
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
70
Strength to Weight: Axial, points 31
43
Strength to Weight: Bending, points 25
54
Thermal Diffusivity, mm2/s 3.0
60
Thermal Shock Resistance, points 27
16

Alloy Composition

Aluminum (Al), % 0.2 to 0.8
2.4 to 3.6
Boron (B), % 0 to 0.0060
0
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 17 to 21
0
Cobalt (Co), % 0 to 1.0
0
Copper (Cu), % 0 to 0.3
0 to 0.050
Iron (Fe), % 11.1 to 24.6
0 to 0.0050
Magnesium (Mg), % 0
94 to 97
Manganese (Mn), % 0 to 0.35
0.15 to 0.4
Molybdenum (Mo), % 2.8 to 3.3
0
Nickel (Ni), % 50 to 55
0 to 0.0050
Niobium (Nb), % 4.8 to 5.5
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.35
0 to 0.1
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0.65 to 1.2
0
Zinc (Zn), % 0
0.5 to 1.5
Residuals, % 0
0 to 0.3