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AZ91B Magnesium vs. N06250 Nickel

AZ91B magnesium belongs to the magnesium alloys classification, while N06250 nickel belongs to the nickel alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, 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 N06250 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
210
Elongation at Break, % 5.0
46
Fatigue Strength, MPa 79
230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
82
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
320
Maximum Temperature: Mechanical, °C 130
980
Melting Completion (Liquidus), °C 600
1490
Melting Onset (Solidus), °C 470
1440
Specific Heat Capacity, J/kg-K 990
440
Thermal Expansion, µm/m-K 26
13

Otherwise Unclassified Properties

Base Metal Price, % relative 12
55
Density, g/cm3 1.7
8.6
Embodied Carbon, kg CO2/kg material 22
10
Embodied Energy, MJ/kg 160
140
Embodied Water, L/kg 990
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
260
Resilience: Unit (Modulus of Resilience), kJ/m3 280
170
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 69
23
Strength to Weight: Axial, points 38
23
Strength to Weight: Bending, points 49
21
Thermal Shock Resistance, points 14
19

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0
Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0
20 to 23
Copper (Cu), % 0 to 0.35
0.25 to 1.3
Iron (Fe), % 0
7.4 to 19.4
Magnesium (Mg), % 87.9 to 91.2
0
Manganese (Mn), % 0.13 to 0.5
0 to 1.0
Molybdenum (Mo), % 0
10.1 to 12
Nickel (Ni), % 0 to 0.030
50 to 54
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.090
Sulfur (S), % 0
0 to 0.0050
Tungsten (W), % 0
0.25 to 1.3
Zinc (Zn), % 0.35 to 1.0
0