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AZ91A Magnesium vs. EN 2.4668 Nickel

AZ91A magnesium belongs to the magnesium alloys classification, while EN 2.4668 nickel belongs to the nickel alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 EN 2.4668 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
190
Elongation at Break, % 5.0
14
Fatigue Strength, MPa 99
590
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
75
Shear Strength, MPa 140
840
Tensile Strength: Ultimate (UTS), MPa 240
1390
Tensile Strength: Yield (Proof), MPa 160
1160

Thermal Properties

Latent Heat of Fusion, J/g 360
310
Maximum Temperature: Mechanical, °C 130
980
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 470
1410
Specific Heat Capacity, J/kg-K 990
450
Thermal Conductivity, W/m-K 73
13
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 52
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
75
Density, g/cm3 1.7
8.3
Embodied Carbon, kg CO2/kg material 22
13
Embodied Energy, MJ/kg 160
190
Embodied Water, L/kg 990
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
180
Resilience: Unit (Modulus of Resilience), kJ/m3 280
3490
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
23
Strength to Weight: Axial, points 38
46
Strength to Weight: Bending, points 49
33
Thermal Diffusivity, mm2/s 42
3.5
Thermal Shock Resistance, points 14
40

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0.3 to 0.7
Boron (B), % 0
0.0020 to 0.0060
Carbon (C), % 0
0.020 to 0.080
Chromium (Cr), % 0
17 to 21
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0 to 0.1
0 to 0.3
Iron (Fe), % 0
11.2 to 24.6
Magnesium (Mg), % 88.2 to 91.2
0
Manganese (Mn), % 0.13 to 0.5
0 to 0.35
Molybdenum (Mo), % 0
2.8 to 3.3
Nickel (Ni), % 0 to 0.030
50 to 55
Niobium (Nb), % 0
4.7 to 5.5
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.5
0 to 0.35
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0.6 to 1.2
Zinc (Zn), % 0.35 to 1.0
0