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Class 4 Tungsten vs. ZE41A Magnesium

Class 4 tungsten belongs to the otherwise unclassified metals classification, while ZE41A magnesium belongs to the magnesium alloys. There are 24 material properties with values for both materials. Properties with values for just one material (11, 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 4 tungsten and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 270
45
Elongation at Break, % 2.3
3.3
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 110
18
Tensile Strength: Ultimate (UTS), MPa 790
210
Tensile Strength: Yield (Proof), MPa 580
140

Thermal Properties

Latent Heat of Fusion, J/g 170
330
Specific Heat Capacity, J/kg-K 130
970
Thermal Conductivity, W/m-K 30
110
Thermal Expansion, µm/m-K 4.5
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
27
Electrical Conductivity: Equal Weight (Specific), % IACS 9.7
130

Otherwise Unclassified Properties

Density, g/cm3 16
1.9
Embodied Carbon, kg CO2/kg material 24
24
Embodied Energy, MJ/kg 360
170
Embodied Water, L/kg 150
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 620
220
Stiffness to Weight: Axial, points 9.6
13
Stiffness to Weight: Bending, points 14
63
Strength to Weight: Axial, points 14
31
Strength to Weight: Bending, points 12
41
Thermal Diffusivity, mm2/s 15
59
Thermal Shock Resistance, points 46
12

Alloy Composition

Copper (Cu), % 0
0 to 0.1
Magnesium (Mg), % 0
91.7 to 95.4
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 0
0 to 0.010
Tungsten (W), % 97
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3