Nickel 625 vs. Nuclear Grade Hafnium
Nickel 625 belongs to the nickel alloys classification, while nuclear grade hafnium belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.
For each property being compared, the top bar is nickel 625 and the bottom bar is nuclear grade hafnium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 78 |
| Elongation at Break, % | 33 to 34 | |
| 25 |
| Poisson's Ratio | 0.29 | |
| 0.26 |
| Shear Modulus, GPa | 79 | |
| 31 |
| Tensile Strength: Ultimate (UTS), MPa | 790 to 910 | |
| 350 |
| Tensile Strength: Yield (Proof), MPa | 320 to 450 | |
| 170 |
Thermal Properties
| Latent Heat of Fusion, J/g | 330 | |
| 130 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 140 |
| Thermal Expansion, µm/m-K | 13 | |
| 5.9 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.6 | |
| 13 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 220 to 250 | |
| 73 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 260 to 490 | |
| 180 |
| Stiffness to Weight: Axial, points | 13 | |
| 3.3 |
| Stiffness to Weight: Bending, points | 23 | |
| 11 |
| Strength to Weight: Axial, points | 26 to 29 | |
| 7.4 |
| Strength to Weight: Bending, points | 22 to 24 | |
| 8.4 |
| Thermal Shock Resistance, points | 22 to 25 | |
| 55 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.4 | |
| 0 |
| Carbon (C), % | 0 to 0.1 | |
| 0 |
| Chromium (Cr), % | 20 to 23 | |
| 0 |
| Cobalt (Co), % | 0 to 1.0 | |
| 0 |
| Hafnium (Hf), % | 0 | |
| 99.8 to 100 |
| Iron (Fe), % | 0 to 5.0 | |
| 0 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0 |
| Molybdenum (Mo), % | 8.0 to 10 | |
| 0 |
| Nickel (Ni), % | 58 to 68.9 | |
| 0 |
| Niobium (Nb), % | 3.2 to 4.2 | |
| 0 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 |
| Titanium (Ti), % | 0 to 0.4 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.23 |