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AS41A Magnesium vs. N08221 Nickel

AS41A magnesium belongs to the magnesium alloys classification, while N08221 nickel belongs to the nickel alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, 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 AS41A magnesium and the bottom bar is N08221 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 11
34
Fatigue Strength, MPa 100
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
79
Shear Strength, MPa 130
410
Tensile Strength: Ultimate (UTS), MPa 230
610
Tensile Strength: Yield (Proof), MPa 140
270

Thermal Properties

Latent Heat of Fusion, J/g 370
310
Maximum Temperature: Mechanical, °C 110
980
Melting Completion (Liquidus), °C 620
1440
Melting Onset (Solidus), °C 570
1390
Specific Heat Capacity, J/kg-K 1000
460
Thermal Expansion, µm/m-K 26
13

Otherwise Unclassified Properties

Base Metal Price, % relative 12
44
Density, g/cm3 1.6
8.3
Embodied Carbon, kg CO2/kg material 23
7.9
Embodied Energy, MJ/kg 160
110
Embodied Water, L/kg 980
240

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
170
Resilience: Unit (Modulus of Resilience), kJ/m3 220
170
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
24
Strength to Weight: Axial, points 38
21
Strength to Weight: Bending, points 50
19
Thermal Shock Resistance, points 14
16

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0 to 0.2
Carbon (C), % 0
0 to 0.025
Chromium (Cr), % 0
20 to 22
Copper (Cu), % 0 to 0.060
1.5 to 3.0
Iron (Fe), % 0
22 to 33.9
Magnesium (Mg), % 92.8 to 95.8
0
Manganese (Mn), % 0.2 to 0.5
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 6.5
Nickel (Ni), % 0 to 0.030
39 to 46
Silicon (Si), % 0.5 to 1.5
0 to 0.050
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0
0.6 to 1.0
Zinc (Zn), % 0 to 0.12
0