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AZ91B Magnesium vs. N06603 Nickel

AZ91B magnesium belongs to the magnesium alloys classification, while N06603 nickel belongs to the nickel alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 N06603 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
190
Elongation at Break, % 5.0
28
Fatigue Strength, MPa 79
230
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
76
Shear Strength, MPa 140
480
Tensile Strength: Ultimate (UTS), MPa 240
740
Tensile Strength: Yield (Proof), MPa 160
340

Thermal Properties

Latent Heat of Fusion, J/g 360
320
Maximum Temperature: Mechanical, °C 130
1000
Melting Completion (Liquidus), °C 600
1340
Melting Onset (Solidus), °C 470
1300
Specific Heat Capacity, J/kg-K 990
480
Thermal Conductivity, W/m-K 73
11
Thermal Expansion, µm/m-K 26
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 58
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
50
Density, g/cm3 1.7
8.2
Embodied Carbon, kg CO2/kg material 22
8.4
Embodied Energy, MJ/kg 160
120
Embodied Water, L/kg 990
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
170
Resilience: Unit (Modulus of Resilience), kJ/m3 280
300
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
24
Strength to Weight: Axial, points 38
25
Strength to Weight: Bending, points 49
22
Thermal Diffusivity, mm2/s 42
2.9
Thermal Shock Resistance, points 14
20

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
2.4 to 3.0
Carbon (C), % 0
0.2 to 0.4
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0 to 0.35
0 to 0.5
Iron (Fe), % 0
8.0 to 11
Magnesium (Mg), % 87.9 to 91.2
0
Manganese (Mn), % 0.13 to 0.5
0 to 0.15
Nickel (Ni), % 0 to 0.030
57.7 to 65.6
Phosphorus (P), % 0
0 to 0.2
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0.010 to 0.25
Yttrium (Y), % 0
0.010 to 0.15
Zinc (Zn), % 0.35 to 1.0
0.010 to 0.1