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AZ91D Magnesium vs. Grade CZ100 Nickel

AZ91D magnesium belongs to the magnesium alloys classification, while grade CZ100 nickel belongs to the nickel alloys. There are 29 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 AZ91D magnesium and the bottom bar is grade CZ100 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
180
Elongation at Break, % 2.3 to 4.5
11
Fatigue Strength, MPa 74 to 85
68
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 18
69
Tensile Strength: Ultimate (UTS), MPa 160 to 220
390
Tensile Strength: Yield (Proof), MPa 80 to 130
140

Thermal Properties

Latent Heat of Fusion, J/g 350
310
Maximum Temperature: Mechanical, °C 130
900
Melting Completion (Liquidus), °C 600
1350
Melting Onset (Solidus), °C 490
1300
Specific Heat Capacity, J/kg-K 990
450
Thermal Conductivity, W/m-K 78
73
Thermal Expansion, µm/m-K 27
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
19
Electrical Conductivity: Equal Weight (Specific), % IACS 58
19

Otherwise Unclassified Properties

Base Metal Price, % relative 12
60
Density, g/cm3 1.7
8.8
Embodied Carbon, kg CO2/kg material 22
10
Embodied Energy, MJ/kg 160
140
Embodied Water, L/kg 990
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.2 to 7.7
35
Resilience: Unit (Modulus of Resilience), kJ/m3 69 to 170
54
Stiffness to Weight: Axial, points 15
12
Stiffness to Weight: Bending, points 69
22
Strength to Weight: Axial, points 26 to 34
12
Strength to Weight: Bending, points 38 to 46
14
Thermal Diffusivity, mm2/s 45
19
Thermal Shock Resistance, points 9.5 to 13
14

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0
Carbon (C), % 0
0 to 1.0
Copper (Cu), % 0 to 0.030
0 to 1.3
Iron (Fe), % 0 to 0.0050
0 to 3.0
Magnesium (Mg), % 88.7 to 91.2
0
Manganese (Mn), % 0.15 to 0.5
0 to 1.5
Nickel (Ni), % 0 to 0.0020
95 to 100
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.1
0 to 2.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0.35 to 1.0
0