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AZ91D Magnesium vs. EN 2.4879 Cast Nickel

AZ91D magnesium belongs to the magnesium alloys classification, while EN 2.4879 cast nickel belongs to the nickel alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, 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 AZ91D magnesium and the bottom bar is EN 2.4879 cast nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
200
Elongation at Break, % 2.3 to 4.5
3.4
Fatigue Strength, MPa 74 to 85
110
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
80
Tensile Strength: Ultimate (UTS), MPa 160 to 220
490
Tensile Strength: Yield (Proof), MPa 80 to 130
270

Thermal Properties

Latent Heat of Fusion, J/g 350
330
Maximum Temperature: Mechanical, °C 130
1150
Melting Completion (Liquidus), °C 600
1450
Melting Onset (Solidus), °C 490
1400
Specific Heat Capacity, J/kg-K 990
460
Thermal Conductivity, W/m-K 78
11
Thermal Expansion, µm/m-K 27
13

Otherwise Unclassified Properties

Base Metal Price, % relative 12
55
Density, g/cm3 1.7
8.5
Embodied Carbon, kg CO2/kg material 22
8.3
Embodied Energy, MJ/kg 160
120
Embodied Water, L/kg 990
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.2 to 7.7
14
Resilience: Unit (Modulus of Resilience), kJ/m3 69 to 170
180
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
23
Strength to Weight: Axial, points 26 to 34
16
Strength to Weight: Bending, points 38 to 46
16
Thermal Diffusivity, mm2/s 45
2.8
Thermal Shock Resistance, points 9.5 to 13
13

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0
Carbon (C), % 0
0.35 to 0.55
Chromium (Cr), % 0
27 to 30
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.0050
9.4 to 20.7
Magnesium (Mg), % 88.7 to 91.2
0
Manganese (Mn), % 0.15 to 0.5
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.0020
47 to 50
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
1.0 to 2.0
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
4.0 to 6.0
Zinc (Zn), % 0.35 to 1.0
0