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QE22A Magnesium vs. Nickel 242

QE22A magnesium belongs to the magnesium alloys classification, while nickel 242 belongs to the nickel alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, 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 QE22A magnesium and the bottom bar is nickel 242.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
220
Elongation at Break, % 2.4
45
Fatigue Strength, MPa 110
300
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 17
84
Shear Strength, MPa 150
570
Tensile Strength: Ultimate (UTS), MPa 250
820
Tensile Strength: Yield (Proof), MPa 190
350

Thermal Properties

Latent Heat of Fusion, J/g 340
330
Maximum Temperature: Mechanical, °C 250
930
Melting Completion (Liquidus), °C 640
1380
Melting Onset (Solidus), °C 570
1290
Specific Heat Capacity, J/kg-K 970
400
Thermal Conductivity, W/m-K 110
11
Thermal Expansion, µm/m-K 27
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 120
1.4

Otherwise Unclassified Properties

Density, g/cm3 2.0
9.0
Embodied Carbon, kg CO2/kg material 27
14
Embodied Energy, MJ/kg 220
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
300
Resilience: Unit (Modulus of Resilience), kJ/m3 400
280
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 60
22
Strength to Weight: Axial, points 36
25
Strength to Weight: Bending, points 46
21
Thermal Diffusivity, mm2/s 59
3.1
Thermal Shock Resistance, points 15
25

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
7.0 to 9.0
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0 to 0.1
0 to 0.5
Iron (Fe), % 0
0 to 2.0
Magnesium (Mg), % 93.1 to 95.8
0
Manganese (Mn), % 0
0 to 0.8
Molybdenum (Mo), % 0
24 to 26
Nickel (Ni), % 0 to 0.010
59.3 to 69
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.8
Silver (Ag), % 2.0 to 3.0
0
Sulfur (S), % 0
0 to 0.015
Unspecified Rare Earths, % 1.8 to 2.5
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0