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AZ91B Magnesium vs. Nickel 201

AZ91B magnesium belongs to the magnesium alloys classification, while nickel 201 belongs to the nickel 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 AZ91B magnesium and the bottom bar is nickel 201.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
180
Elongation at Break, % 5.0
4.5 to 45
Fatigue Strength, MPa 79
42 to 210
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 18
70
Shear Strength, MPa 140
270 to 380
Tensile Strength: Ultimate (UTS), MPa 240
390 to 660
Tensile Strength: Yield (Proof), MPa 160
80 to 510

Thermal Properties

Latent Heat of Fusion, J/g 360
290
Maximum Temperature: Mechanical, °C 130
900
Melting Completion (Liquidus), °C 600
1450
Melting Onset (Solidus), °C 470
1440
Specific Heat Capacity, J/kg-K 990
440
Thermal Conductivity, W/m-K 73
78
Thermal Expansion, µm/m-K 26
13

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
65
Density, g/cm3 1.7
8.9
Embodied Carbon, kg CO2/kg material 22
11
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 990
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
25 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 280
17 to 720
Stiffness to Weight: Axial, points 15
11
Stiffness to Weight: Bending, points 69
21
Strength to Weight: Axial, points 38
12 to 20
Strength to Weight: Bending, points 49
13 to 19
Thermal Diffusivity, mm2/s 42
20
Thermal Shock Resistance, points 14
11 to 19

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0
Carbon (C), % 0
0 to 0.020
Copper (Cu), % 0 to 0.35
0 to 0.25
Iron (Fe), % 0
0 to 0.4
Magnesium (Mg), % 87.9 to 91.2
0
Manganese (Mn), % 0.13 to 0.5
0 to 0.35
Nickel (Ni), % 0 to 0.030
99 to 100
Silicon (Si), % 0 to 0.5
0 to 0.35
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 0.35 to 1.0
0