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EN 2.4951 Nickel vs. EQ21A Magnesium

EN 2.4951 nickel belongs to the nickel alloys classification, while EQ21A magnesium belongs to the magnesium 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 EN 2.4951 nickel and the bottom bar is EQ21A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
80
Elastic (Young's, Tensile) Modulus, GPa 190
44
Elongation at Break, % 34
2.4
Fatigue Strength, MPa 200
110
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 76
17
Shear Strength, MPa 500
150
Tensile Strength: Ultimate (UTS), MPa 750
250
Tensile Strength: Yield (Proof), MPa 270
190

Thermal Properties

Latent Heat of Fusion, J/g 320
340
Maximum Temperature: Mechanical, °C 1150
160
Melting Completion (Liquidus), °C 1360
640
Melting Onset (Solidus), °C 1310
560
Specific Heat Capacity, J/kg-K 460
980
Thermal Conductivity, W/m-K 12
110
Thermal Expansion, µm/m-K 12
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
25
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
120

Otherwise Unclassified Properties

Base Metal Price, % relative 60
80
Density, g/cm3 8.5
1.9
Embodied Carbon, kg CO2/kg material 9.3
27
Embodied Energy, MJ/kg 130
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 190
410
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
63
Strength to Weight: Axial, points 25
37
Strength to Weight: Bending, points 22
47
Thermal Diffusivity, mm2/s 3.1
62
Thermal Shock Resistance, points 23
15

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0.080 to 0.15
0
Chromium (Cr), % 18 to 21
0
Cobalt (Co), % 0 to 5.0
0
Copper (Cu), % 0 to 0.5
0.050 to 0.1
Iron (Fe), % 0 to 5.0
0
Magnesium (Mg), % 0
93.9 to 96.8
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 65.4 to 81.7
0 to 0.010
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
1.3 to 1.7
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0.2 to 0.6
0
Unspecified Rare Earths, % 0
1.5 to 3.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3