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Class 4 Tungsten vs. ZK60A Magnesium

Class 4 tungsten belongs to the otherwise unclassified metals classification, while ZK60A magnesium belongs to the magnesium alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, 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 ZK60A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 270
46
Elongation at Break, % 2.3
4.5 to 9.9
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 110
18
Tensile Strength: Ultimate (UTS), MPa 790
320 to 330
Tensile Strength: Yield (Proof), MPa 580
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 170
330
Specific Heat Capacity, J/kg-K 130
960
Thermal Conductivity, W/m-K 30
120
Thermal Expansion, µm/m-K 4.5
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
29 to 30
Electrical Conductivity: Equal Weight (Specific), % IACS 9.7
140

Otherwise Unclassified Properties

Density, g/cm3 16
1.9
Embodied Carbon, kg CO2/kg material 24
23
Embodied Energy, MJ/kg 360
160
Embodied Water, L/kg 150
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16
14 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 620
570 to 690
Stiffness to Weight: Axial, points 9.6
13
Stiffness to Weight: Bending, points 14
63
Strength to Weight: Axial, points 14
47 to 49
Strength to Weight: Bending, points 12
55 to 56
Thermal Diffusivity, mm2/s 15
66
Thermal Shock Resistance, points 46
19 to 20

Alloy Composition

Magnesium (Mg), % 0
92.5 to 94.8
Tungsten (W), % 97
0
Zinc (Zn), % 0
4.8 to 6.2
Zirconium (Zr), % 0
0.45 to 1.0
Residuals, % 0
0 to 0.3