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AZ91B Magnesium vs. N10624 Nickel

AZ91B magnesium belongs to the magnesium alloys classification, while N10624 nickel belongs to the nickel alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, 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 N10624 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
220
Elongation at Break, % 5.0
45
Fatigue Strength, MPa 79
310
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 18
84
Shear Strength, MPa 140
570
Tensile Strength: Ultimate (UTS), MPa 240
810
Tensile Strength: Yield (Proof), MPa 160
360

Thermal Properties

Latent Heat of Fusion, J/g 360
320
Maximum Temperature: Mechanical, °C 130
930
Melting Completion (Liquidus), °C 600
1580
Melting Onset (Solidus), °C 470
1520
Specific Heat Capacity, J/kg-K 990
410
Thermal Expansion, µm/m-K 26
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
70
Density, g/cm3 1.7
9.0
Embodied Carbon, kg CO2/kg material 22
13
Embodied Energy, MJ/kg 160
170
Embodied Water, L/kg 990
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
300
Resilience: Unit (Modulus of Resilience), kJ/m3 280
300
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
22
Strength to Weight: Axial, points 38
25
Strength to Weight: Bending, points 49
22
Thermal Shock Resistance, points 14
24

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0 to 0.5
Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0
6.0 to 10
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0 to 0.35
0 to 0.5
Iron (Fe), % 0
5.0 to 8.0
Magnesium (Mg), % 87.9 to 91.2
0
Manganese (Mn), % 0.13 to 0.5
0 to 1.0
Molybdenum (Mo), % 0
21 to 25
Nickel (Ni), % 0 to 0.030
53.9 to 68
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 0.35 to 1.0
0