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EN-MC65120 Magnesium vs. Nickel 718

EN-MC65120 magnesium belongs to the magnesium alloys classification, while nickel 718 belongs to the nickel alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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 EN-MC65120 magnesium and the bottom bar is nickel 718.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 3.1
12 to 50
Fatigue Strength, MPa 80
460 to 760
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
75
Shear Strength, MPa 92
660 to 950
Tensile Strength: Ultimate (UTS), MPa 160
930 to 1530
Tensile Strength: Yield (Proof), MPa 110
510 to 1330

Thermal Properties

Latent Heat of Fusion, J/g 330
310
Maximum Temperature: Mechanical, °C 180
980
Melting Completion (Liquidus), °C 590
1340
Melting Onset (Solidus), °C 520
1260
Specific Heat Capacity, J/kg-K 970
450
Thermal Conductivity, W/m-K 100
11
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 120
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 25
75
Density, g/cm3 1.9
8.3
Embodied Carbon, kg CO2/kg material 25
13
Embodied Energy, MJ/kg 190
190
Embodied Water, L/kg 930
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
140 to 390
Resilience: Unit (Modulus of Resilience), kJ/m3 140
660 to 4560
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 62
23
Strength to Weight: Axial, points 23
31 to 51
Strength to Weight: Bending, points 34
25 to 35
Thermal Diffusivity, mm2/s 56
3.0
Thermal Shock Resistance, points 9.8
27 to 44

Alloy Composition


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Aluminum (Al), % 0
0.2 to 0.8
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
17 to 21
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0 to 0.030
0 to 0.3
Iron (Fe), % 0 to 0.010
11.1 to 24.6
Magnesium (Mg), % 91.8 to 95.1
0
Manganese (Mn), % 0 to 0.15
0 to 0.35
Molybdenum (Mo), % 0
2.8 to 3.3
Nickel (Ni), % 0 to 0.0050
50 to 55
Niobium (Nb), % 0
4.8 to 5.5
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.010
0 to 0.35
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0.65 to 1.2
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0