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Class 4 Tungsten vs. Austenitic Grey Cast Iron

Class 4 tungsten belongs to the otherwise unclassified metals classification, while austenitic grey cast iron belongs to the iron alloys. There are 16 material properties with values for both materials. Properties with values for just one material (14, 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 grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 270
180
Poisson's Ratio 0.28
0.29 to 0.3
Shear Modulus, GPa 110
69 to 72
Tensile Strength: Ultimate (UTS), MPa 790
150 to 230

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 8.1
Embodied Carbon, kg CO2/kg material 24
3.1 to 4.7
Embodied Energy, MJ/kg 360
43 to 65
Embodied Water, L/kg 150
93 to 120

Common Calculations

Stiffness to Weight: Axial, points 9.6
13
Stiffness to Weight: Bending, points 14
23 to 25
Strength to Weight: Axial, points 14
5.3 to 8.2
Strength to Weight: Bending, points 12
7.9 to 11
Thermal Shock Resistance, points 46
4.5 to 6.5