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AZ91A Magnesium vs. N06025 Nickel

AZ91A magnesium belongs to the magnesium alloys classification, while N06025 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 AZ91A magnesium and the bottom bar is N06025 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
200
Elongation at Break, % 5.0
32
Fatigue Strength, MPa 99
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
76
Shear Strength, MPa 140
500
Tensile Strength: Ultimate (UTS), MPa 240
760
Tensile Strength: Yield (Proof), MPa 160
310

Thermal Properties

Latent Heat of Fusion, J/g 360
320
Maximum Temperature: Mechanical, °C 130
1000
Melting Completion (Liquidus), °C 600
1350
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
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 52
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
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
190
Resilience: Unit (Modulus of Resilience), kJ/m3 280
240
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
24
Strength to Weight: Axial, points 38
26
Strength to Weight: Bending, points 49
22
Thermal Diffusivity, mm2/s 42
2.9
Thermal Shock Resistance, points 14
21

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
1.8 to 2.4
Carbon (C), % 0
0.15 to 0.25
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0 to 0.1
0 to 0.1
Iron (Fe), % 0
8.0 to 11
Magnesium (Mg), % 88.2 to 91.2
0
Manganese (Mn), % 0.13 to 0.5
0 to 0.15
Nickel (Ni), % 0 to 0.030
59.2 to 65.9
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0.1 to 0.2
Yttrium (Y), % 0
0.050 to 0.12
Zinc (Zn), % 0.35 to 1.0
0.010 to 0.1