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ISO-WD43150 Magnesium vs. Reactor Grade Zirconium

ISO-WD43150 magnesium belongs to the magnesium alloys classification, while reactor grade zirconium belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (10, 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 ISO-WD43150 magnesium and the bottom bar is reactor grade zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
98
Elongation at Break, % 2.8
21
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
37
Tensile Strength: Ultimate (UTS), MPa 250
330
Tensile Strength: Yield (Proof), MPa 150
160

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Specific Heat Capacity, J/kg-K 990
270
Thermal Conductivity, W/m-K 140
22
Thermal Expansion, µm/m-K 27
5.9

Otherwise Unclassified Properties

Density, g/cm3 1.7
6.5
Embodied Water, L/kg 970
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
56
Resilience: Unit (Modulus of Resilience), kJ/m3 250
130
Stiffness to Weight: Axial, points 15
8.4
Stiffness to Weight: Bending, points 71
24
Strength to Weight: Axial, points 41
14
Strength to Weight: Bending, points 52
16
Thermal Diffusivity, mm2/s 81
13
Thermal Shock Resistance, points 14
41

Alloy Composition


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Copper (Cu), % 0 to 0.050
0
Magnesium (Mg), % 97.5 to 98.8
0
Manganese (Mn), % 1.2 to 2.0
0
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0 to 0.1
0
Zirconium (Zr), % 0
99.7 to 100
Residuals, % 0 to 0.3
0 to 0.27