Nuclear Grade Hafnium vs. EN 1.6368 Steel
Nuclear grade hafnium belongs to the otherwise unclassified metals classification, while EN 1.6368 steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.
For each property being compared, the top bar is nuclear grade hafnium and the bottom bar is EN 1.6368 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 78 | |
| 190 |
| Elongation at Break, % | 25 | |
| 18 |
| Poisson's Ratio | 0.26 | |
| 0.29 |
| Shear Modulus, GPa | 31 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 350 | |
| 660 to 690 |
| Tensile Strength: Yield (Proof), MPa | 170 | |
| 460 to 490 |
Thermal Properties
| Latent Heat of Fusion, J/g | 130 | |
| 250 |
| Specific Heat Capacity, J/kg-K | 140 | |
| 470 |
| Thermal Expansion, µm/m-K | 5.9 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 7.9 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 73 | |
| 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 180 | |
| 580 to 650 |
| Stiffness to Weight: Axial, points | 3.3 | |
| 13 |
| Stiffness to Weight: Bending, points | 11 | |
| 24 |
| Strength to Weight: Axial, points | 7.4 | |
| 23 to 24 |
| Strength to Weight: Bending, points | 8.4 | |
| 21 to 22 |
| Thermal Shock Resistance, points | 55 | |
| 20 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0.015 to 0.040 |
| Carbon (C), % | 0 | |
| 0 to 0.17 |
| Chromium (Cr), % | 0 | |
| 0 to 0.3 |
| Copper (Cu), % | 0 | |
| 0.5 to 0.8 |
| Hafnium (Hf), % | 99.8 to 100 | |
| 0 |
| Iron (Fe), % | 0 | |
| 95.1 to 97.2 |
| Manganese (Mn), % | 0 | |
| 0.8 to 1.2 |
| Molybdenum (Mo), % | 0 | |
| 0.25 to 0.5 |
| Nickel (Ni), % | 0 | |
| 1.0 to 1.3 |
| Niobium (Nb), % | 0 | |
| 0.015 to 0.045 |
| Nitrogen (N), % | 0 | |
| 0 to 0.020 |
| Phosphorus (P), % | 0 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 | |
| 0.25 to 0.5 |
| Sulfur (S), % | 0 | |
| 0 to 0.010 |
| Residuals, % | 0 to 0.23 | |
| 0 |