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Commercially Pure Zirconium vs. EZ33A Magnesium

Commercially pure zirconium belongs to the otherwise unclassified metals classification, while EZ33A magnesium belongs to the magnesium alloys. There are 21 material properties with values for both materials. Properties with values for just one material (12, 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 commercially pure zirconium and the bottom bar is EZ33A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
44
Elongation at Break, % 18
2.6
Fatigue Strength, MPa 60
70
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
17
Tensile Strength: Ultimate (UTS), MPa 430
150
Tensile Strength: Yield (Proof), MPa 240
100

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Specific Heat Capacity, J/kg-K 270
970
Thermal Conductivity, W/m-K 22
100
Thermal Expansion, µm/m-K 5.5
27

Otherwise Unclassified Properties

Density, g/cm3 6.7
1.9
Embodied Water, L/kg 450
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 65
3.6
Resilience: Unit (Modulus of Resilience), kJ/m3 290
120
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
61
Strength to Weight: Axial, points 18
22
Strength to Weight: Bending, points 19
33
Thermal Diffusivity, mm2/s 12
54
Thermal Shock Resistance, points 56
9.2

Alloy Composition

Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0
0 to 0.1
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.2
0
Magnesium (Mg), % 0
91.5 to 95
Nickel (Ni), % 0
0 to 0.010
Nitrogen (N), % 0 to 0.025
0
Oxygen (O), % 0 to 0.16
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 0
2.0 to 3.1
Zirconium (Zr), % 94.7 to 100
0.5 to 1.0
Residuals, % 0
0 to 0.3