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Commercially Pure Zirconium vs. EV31A Magnesium

Commercially pure zirconium belongs to the otherwise unclassified metals classification, while EV31A magnesium belongs to the magnesium alloys. There are 19 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 commercially pure zirconium and the bottom bar is EV31A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
44
Elongation at Break, % 18
3.5
Fatigue Strength, MPa 60
120
Poisson's Ratio 0.34
0.27
Shear Modulus, GPa 36
17
Tensile Strength: Ultimate (UTS), MPa 430
260
Tensile Strength: Yield (Proof), MPa 240
170

Thermal Properties

Specific Heat Capacity, J/kg-K 270
1000
Thermal Conductivity, W/m-K 22
86
Thermal Expansion, µm/m-K 5.5
27

Otherwise Unclassified Properties

Density, g/cm3 6.7
1.8

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 65
8.1
Resilience: Unit (Modulus of Resilience), kJ/m3 290
330
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
65
Strength to Weight: Axial, points 18
40
Strength to Weight: Bending, points 19
50
Thermal Diffusivity, mm2/s 12
47
Thermal Shock Resistance, points 56
16