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Class 4 Tungsten vs. Austenitic Nodular Cast Iron

Class 4 tungsten belongs to the otherwise unclassified metals classification, while austenitic nodular cast iron belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (9, 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 austenitic nodular cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 270
180 to 190
Elongation at Break, % 2.3
6.8 to 34
Poisson's Ratio 0.28
0.29 to 0.3
Shear Modulus, GPa 110
70 to 72
Tensile Strength: Ultimate (UTS), MPa 790
430 to 500
Tensile Strength: Yield (Proof), MPa 580
190 to 240

Thermal Properties

Latent Heat of Fusion, J/g 170
280 to 350
Specific Heat Capacity, J/kg-K 130
470 to 490
Thermal Expansion, µm/m-K 4.5
13 to 14

Otherwise Unclassified Properties

Density, g/cm3 16
7.7 to 8.0
Embodied Carbon, kg CO2/kg material 24
3.5 to 4.9
Embodied Energy, MJ/kg 360
48 to 68
Embodied Water, L/kg 150
91 to 120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16
24 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 620
98 to 160
Stiffness to Weight: Axial, points 9.6
13
Stiffness to Weight: Bending, points 14
24 to 25
Strength to Weight: Axial, points 14
15 to 18
Strength to Weight: Bending, points 12
16 to 18
Thermal Shock Resistance, points 46
12 to 15