ASTM B631 Class C vs. Nuclear Grade Hafnium
Both ASTM B631 class C and nuclear grade hafnium are otherwise unclassified metals. There are 9 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.
For each property being compared, the top bar is ASTM B631 class C and the bottom bar is nuclear grade hafnium.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 13 to 14 | |
| 13 |
| Elastic (Young's, Tensile) Modulus, GPa | 180 to 190 | |
| 78 |
| Latent Heat of Fusion, J/g | 140 to 150 | |
| 130 |
| Poisson's Ratio | 0.32 | |
| 0.26 |
| Shear Modulus, GPa | 66 to 71 | |
| 31 |
| Specific Heat Capacity, J/kg-K | 180 | |
| 140 |
| Stiffness to Weight: Axial, points | 7.4 to 7.6 | |
| 3.3 |
| Stiffness to Weight: Bending, points | 14 | |
| 11 |
| Thermal Expansion, µm/m-K | 14 | |
| 5.9 |