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Class 3 Tungsten vs. EV31A Magnesium

Class 3 tungsten belongs to the otherwise unclassified metals classification, while EV31A magnesium belongs to the magnesium alloys. 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 class 3 tungsten and the bottom bar is EV31A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 270
44
Elongation at Break, % 3.4
3.5
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 100
17
Tensile Strength: Ultimate (UTS), MPa 830
260
Tensile Strength: Yield (Proof), MPa 580
170

Thermal Properties

Specific Heat Capacity, J/kg-K 120
1000
Thermal Conductivity, W/m-K 30
86
Thermal Expansion, µm/m-K 4.5
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
18
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
90

Otherwise Unclassified Properties

Density, g/cm3 15
1.8

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25
8.1
Resilience: Unit (Modulus of Resilience), kJ/m3 630
330
Stiffness to Weight: Axial, points 9.6
13
Stiffness to Weight: Bending, points 14
65
Strength to Weight: Axial, points 15
40
Strength to Weight: Bending, points 13
50
Thermal Diffusivity, mm2/s 15
47
Thermal Shock Resistance, points 49
16