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AZ91B Magnesium vs. N12160 Nickel

AZ91B magnesium belongs to the magnesium alloys classification, while N12160 nickel belongs to the nickel alloys. There are 28 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 AZ91B magnesium and the bottom bar is N12160 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
210
Elongation at Break, % 5.0
45
Fatigue Strength, MPa 79
230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
80
Shear Strength, MPa 140
500
Tensile Strength: Ultimate (UTS), MPa 240
710
Tensile Strength: Yield (Proof), MPa 160
270

Thermal Properties

Latent Heat of Fusion, J/g 360
360
Maximum Temperature: Mechanical, °C 130
1060
Melting Completion (Liquidus), °C 600
1330
Melting Onset (Solidus), °C 470
1280
Specific Heat Capacity, J/kg-K 990
470
Thermal Conductivity, W/m-K 73
11
Thermal Expansion, µm/m-K 26
13

Otherwise Unclassified Properties

Base Metal Price, % relative 12
90
Density, g/cm3 1.7
8.2
Embodied Carbon, kg CO2/kg material 22
8.5
Embodied Energy, MJ/kg 160
120
Embodied Water, L/kg 990
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
260
Resilience: Unit (Modulus of Resilience), kJ/m3 280
180
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 69
24
Strength to Weight: Axial, points 38
24
Strength to Weight: Bending, points 49
22
Thermal Diffusivity, mm2/s 42
2.8
Thermal Shock Resistance, points 14
19

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
26 to 30
Cobalt (Co), % 0
27 to 33
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 0
0 to 3.5
Magnesium (Mg), % 87.9 to 91.2
0
Manganese (Mn), % 0.13 to 0.5
0 to 1.5
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.030
25 to 44.4
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.5
2.4 to 3.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0.2 to 0.8
Tungsten (W), % 0
0 to 1.0
Zinc (Zn), % 0.35 to 1.0
0