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EN-MC21320 Magnesium vs. EN 2.4856 Nickel

EN-MC21320 magnesium belongs to the magnesium alloys classification, while EN 2.4856 nickel belongs to the nickel alloys. 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 EN-MC21320 magnesium and the bottom bar is EN 2.4856 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 68
210
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 7.5
28
Fatigue Strength, MPa 95
280
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
79
Shear Strength, MPa 130
570
Tensile Strength: Ultimate (UTS), MPa 230
880
Tensile Strength: Yield (Proof), MPa 140
430

Thermal Properties

Latent Heat of Fusion, J/g 370
330
Maximum Temperature: Mechanical, °C 110
1000
Melting Completion (Liquidus), °C 600
1480
Melting Onset (Solidus), °C 530
1430
Specific Heat Capacity, J/kg-K 1000
440
Thermal Conductivity, W/m-K 66
10
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 91
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
80
Density, g/cm3 1.6
8.6
Embodied Carbon, kg CO2/kg material 23
14
Embodied Energy, MJ/kg 160
190
Embodied Water, L/kg 980
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
200
Resilience: Unit (Modulus of Resilience), kJ/m3 200
440
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
23
Strength to Weight: Axial, points 38
28
Strength to Weight: Bending, points 50
24
Thermal Diffusivity, mm2/s 40
2.7
Thermal Shock Resistance, points 13
29

Alloy Composition


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Aluminum (Al), % 3.5 to 5.0
0 to 0.4
Carbon (C), % 0
0.030 to 0.1
Chromium (Cr), % 0
20 to 23
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0 to 0.010
0 to 0.5
Iron (Fe), % 0 to 0.0050
0 to 5.0
Magnesium (Mg), % 92.5 to 95.9
0
Manganese (Mn), % 0.1 to 0.7
0 to 0.5
Molybdenum (Mo), % 0
8.0 to 10
Nickel (Ni), % 0 to 0.0020
58 to 68.8
Niobium (Nb), % 0
3.2 to 4.2
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0.5 to 1.5
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0 to 0.4
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0