Austenitic Grey Cast Iron vs. Nuclear Grade Hafnium
Austenitic grey cast iron belongs to the iron alloys classification, while nuclear grade hafnium belongs to the otherwise unclassified metals. There are 13 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is austenitic grey cast iron and the bottom bar is nuclear grade hafnium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 180 | |
| 78 |
| Poisson's Ratio | 0.29 to 0.3 | |
| 0.26 |
| Shear Modulus, GPa | 69 to 72 | |
| 31 |
| Tensile Strength: Ultimate (UTS), MPa | 150 to 230 | |
| 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 to 350 | |
| 130 |
| Specific Heat Capacity, J/kg-K | 470 to 490 | |
| 140 |
| Thermal Expansion, µm/m-K | 13 to 14 | |
| 5.9 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.7 to 8.1 | |
| 13 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 3.3 |
| Stiffness to Weight: Bending, points | 23 to 25 | |
| 11 |
| Strength to Weight: Axial, points | 5.3 to 8.2 | |
| 7.4 |
| Strength to Weight: Bending, points | 7.9 to 11 | |
| 8.4 |
| Thermal Shock Resistance, points | 4.5 to 6.5 | |
| 55 |