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AZ91A Magnesium vs. N06230 Nickel

AZ91A magnesium belongs to the magnesium alloys classification, while N06230 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 N06230 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
210
Elongation at Break, % 5.0
38 to 48
Fatigue Strength, MPa 99
250 to 360
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
83
Shear Strength, MPa 140
420 to 600
Tensile Strength: Ultimate (UTS), MPa 240
620 to 840
Tensile Strength: Yield (Proof), MPa 160
330 to 400

Thermal Properties

Latent Heat of Fusion, J/g 360
310
Maximum Temperature: Mechanical, °C 130
990
Melting Completion (Liquidus), °C 600
1370
Melting Onset (Solidus), °C 470
1300
Specific Heat Capacity, J/kg-K 990
420
Thermal Conductivity, W/m-K 73
8.9
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 52
1.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
85
Density, g/cm3 1.7
9.5
Embodied Carbon, kg CO2/kg material 22
11
Embodied Energy, MJ/kg 160
160
Embodied Water, L/kg 990
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
200 to 330
Resilience: Unit (Modulus of Resilience), kJ/m3 280
250 to 380
Stiffness to Weight: Axial, points 15
12
Stiffness to Weight: Bending, points 69
21
Strength to Weight: Axial, points 38
18 to 25
Strength to Weight: Bending, points 49
17 to 21
Thermal Diffusivity, mm2/s 42
2.3
Thermal Shock Resistance, points 14
17 to 23

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0.2 to 0.5
Boron (B), % 0
0 to 0.015
Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
20 to 24
Cobalt (Co), % 0
0 to 5.0
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0
0 to 3.0
Lanthanum (La), % 0
0.0050 to 0.050
Magnesium (Mg), % 88.2 to 91.2
0
Manganese (Mn), % 0.13 to 0.5
0.3 to 1.0
Molybdenum (Mo), % 0
1.0 to 3.0
Nickel (Ni), % 0 to 0.030
47.5 to 65.2
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.5
0.25 to 0.75
Sulfur (S), % 0
0 to 0.015
Tungsten (W), % 0
13 to 15
Zinc (Zn), % 0.35 to 1.0
0