Nuclear Grade Hafnium vs. EN 1.4740 Stainless Steel
Nuclear grade hafnium belongs to the otherwise unclassified metals classification, while EN 1.4740 stainless steel belongs to the iron alloys. There are 10 material properties with values for both materials. Properties with values for just one material (21, in this case) are not shown.
For each property being compared, the top bar is nuclear grade hafnium and the bottom bar is EN 1.4740 stainless steel.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 13 | |
| 7.6 |
| Elastic (Young's, Tensile) Modulus, GPa | 78 | |
| 200 |
| Elongation at Break, % | 25 | |
| 22 |
| Latent Heat of Fusion, J/g | 130 | |
| 300 |
| Poisson's Ratio | 0.26 | |
| 0.28 |
| Shear Modulus, GPa | 31 | |
| 77 |
| Specific Heat Capacity, J/kg-K | 140 | |
| 490 |
| Stiffness to Weight: Axial, points | 3.3 | |
| 14 |
| Stiffness to Weight: Bending, points | 11 | |
| 25 |
| Thermal Expansion, µm/m-K | 5.9 | |
| 10 |
Alloy Composition
| Carbon (C), % | 0 | |
| 0.3 to 0.5 |
| Chromium (Cr), % | 0 | |
| 16 to 19 |
| Hafnium (Hf), % | 99.8 to 100 | |
| 0 |
| Iron (Fe), % | 0 | |
| 75.4 to 82.7 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.5 |
| Nickel (Ni), % | 0 | |
| 0 to 1.0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 | |
| 1.0 to 2.5 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Residuals, % | 0 to 0.23 | |
| 0 |