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AM50A Magnesium vs. Grade CY40 Nickel

AM50A magnesium belongs to the magnesium alloys classification, while grade CY40 nickel belongs to the nickel alloys. There are 29 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 AM50A magnesium and the bottom bar is grade CY40 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 11
34
Fatigue Strength, MPa 70
160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
74
Tensile Strength: Ultimate (UTS), MPa 210
540
Tensile Strength: Yield (Proof), MPa 120
220

Thermal Properties

Latent Heat of Fusion, J/g 350
330
Maximum Temperature: Mechanical, °C 120
960
Melting Completion (Liquidus), °C 620
1350
Melting Onset (Solidus), °C 570
1300
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 65
14
Thermal Expansion, µm/m-K 26
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 88
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 12
55
Density, g/cm3 1.7
8.4
Embodied Carbon, kg CO2/kg material 23
9.1
Embodied Energy, MJ/kg 160
130
Embodied Water, L/kg 990
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
150
Resilience: Unit (Modulus of Resilience), kJ/m3 150
130
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
23
Strength to Weight: Axial, points 35
18
Strength to Weight: Bending, points 47
18
Thermal Diffusivity, mm2/s 39
3.7
Thermal Shock Resistance, points 13
16

Alloy Composition

Aluminum (Al), % 4.4 to 5.4
0
Carbon (C), % 0
0 to 0.4
Chromium (Cr), % 0
14 to 17
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0040
0 to 11
Magnesium (Mg), % 93.7 to 95.3
0
Manganese (Mn), % 0.26 to 0.6
0 to 1.5
Nickel (Ni), % 0 to 0.0020
67 to 86
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.1
0 to 3.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.22
0