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EV31A Magnesium vs. Class 4 Tungsten

EV31A magnesium belongs to the magnesium alloys classification, while class 4 tungsten belongs to the otherwise unclassified metals. There are 20 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 EV31A magnesium and the bottom bar is class 4 tungsten.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
270
Elongation at Break, % 3.5
2.3
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 17
110
Tensile Strength: Ultimate (UTS), MPa 260
790
Tensile Strength: Yield (Proof), MPa 170
580

Thermal Properties

Specific Heat Capacity, J/kg-K 1000
130
Thermal Conductivity, W/m-K 86
30
Thermal Expansion, µm/m-K 27
4.5

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
17
Electrical Conductivity: Equal Weight (Specific), % IACS 90
9.7

Otherwise Unclassified Properties

Density, g/cm3 1.8
16

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.1
16
Resilience: Unit (Modulus of Resilience), kJ/m3 330
620
Stiffness to Weight: Axial, points 13
9.6
Stiffness to Weight: Bending, points 65
14
Strength to Weight: Axial, points 40
14
Strength to Weight: Bending, points 50
12
Thermal Diffusivity, mm2/s 47
15
Thermal Shock Resistance, points 16
46