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ISO-WD32250 Magnesium vs. Class 1 Tungsten

ISO-WD32250 magnesium belongs to the magnesium alloys classification, while class 1 tungsten belongs to the otherwise unclassified metals. 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 ISO-WD32250 magnesium and the bottom bar is class 1 tungsten.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
250
Elongation at Break, % 4.5 to 8.6
5.7
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
98
Tensile Strength: Ultimate (UTS), MPa 310 to 330
860
Tensile Strength: Yield (Proof), MPa 240 to 290
580

Thermal Properties

Latent Heat of Fusion, J/g 340
160
Specific Heat Capacity, J/kg-K 980
120
Thermal Conductivity, W/m-K 130
21
Thermal Expansion, µm/m-K 26
5.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
12
Electrical Conductivity: Equal Weight (Specific), % IACS 130
7.4

Otherwise Unclassified Properties

Density, g/cm3 1.8
15
Embodied Carbon, kg CO2/kg material 24
22
Embodied Energy, MJ/kg 160
340
Embodied Water, L/kg 950
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14 to 26
44
Resilience: Unit (Modulus of Resilience), kJ/m3 630 to 930
660
Stiffness to Weight: Axial, points 14
9.6
Stiffness to Weight: Bending, points 67
14
Strength to Weight: Axial, points 49 to 51
16
Strength to Weight: Bending, points 58 to 60
14
Thermal Diffusivity, mm2/s 72
12
Thermal Shock Resistance, points 19 to 20
48

Alloy Composition


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Magnesium (Mg), % 94.9 to 97.1
0
Tungsten (W), % 0
90
Zinc (Zn), % 2.5 to 4.0
0
Zirconium (Zr), % 0.45 to 0.8
0
Residuals, % 0 to 0.3
10