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Class 1 Tungsten vs. EZ33A Magnesium

Class 1 tungsten belongs to the otherwise unclassified metals classification, while EZ33A magnesium belongs to the magnesium alloys. There are 24 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 class 1 tungsten and the bottom bar is EZ33A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 250
44
Elongation at Break, % 5.7
2.6
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 98
17
Tensile Strength: Ultimate (UTS), MPa 860
150
Tensile Strength: Yield (Proof), MPa 580
100

Thermal Properties

Latent Heat of Fusion, J/g 160
330
Specific Heat Capacity, J/kg-K 120
970
Thermal Conductivity, W/m-K 21
100
Thermal Expansion, µm/m-K 5.1
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
24
Electrical Conductivity: Equal Weight (Specific), % IACS 7.4
110

Otherwise Unclassified Properties

Density, g/cm3 15
1.9
Embodied Carbon, kg CO2/kg material 22
25
Embodied Energy, MJ/kg 340
190
Embodied Water, L/kg 140
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44
3.6
Resilience: Unit (Modulus of Resilience), kJ/m3 660
120
Stiffness to Weight: Axial, points 9.6
13
Stiffness to Weight: Bending, points 14
61
Strength to Weight: Axial, points 16
22
Strength to Weight: Bending, points 14
33
Thermal Diffusivity, mm2/s 12
54
Thermal Shock Resistance, points 48
9.2

Alloy Composition

Copper (Cu), % 0
0 to 0.1
Magnesium (Mg), % 0
91.5 to 95
Nickel (Ni), % 0
0 to 0.010
Tungsten (W), % 90
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 0
2.0 to 3.1
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3