Nuclear Grade Hafnium vs. Monel 400
Nuclear grade hafnium belongs to the otherwise unclassified metals classification, while Monel 400 belongs to the nickel 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 Monel 400.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 78 | |
| 160 |
| Elongation at Break, % | 25 | |
| 20 to 40 |
| Poisson's Ratio | 0.26 | |
| 0.32 |
| Shear Modulus, GPa | 31 | |
| 62 |
| Tensile Strength: Ultimate (UTS), MPa | 350 | |
| 540 to 780 |
| Tensile Strength: Yield (Proof), MPa | 170 | |
| 210 to 590 |
Thermal Properties
| Latent Heat of Fusion, J/g | 130 | |
| 270 |
| Specific Heat Capacity, J/kg-K | 140 | |
| 430 |
| Thermal Expansion, µm/m-K | 5.9 | |
| 14 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 8.9 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 73 | |
| 140 to 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 180 | |
| 140 to 1080 |
| Stiffness to Weight: Axial, points | 3.3 | |
| 10 |
| Stiffness to Weight: Bending, points | 11 | |
| 21 |
| Strength to Weight: Axial, points | 7.4 | |
| 17 to 25 |
| Strength to Weight: Bending, points | 8.4 | |
| 17 to 21 |
| Thermal Shock Resistance, points | 55 | |
| 17 to 25 |
Alloy Composition
| Carbon (C), % | 0 | |
| 0 to 0.3 |
| Copper (Cu), % | 0 | |
| 28 to 34 |
| Hafnium (Hf), % | 99.8 to 100 | |
| 0 |
| Iron (Fe), % | 0 | |
| 0 to 2.5 |
| Manganese (Mn), % | 0 | |
| 0 to 2.0 |
| Nickel (Ni), % | 0 | |
| 63 to 72 |
| Silicon (Si), % | 0 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 | |
| 0 to 0.024 |
| Residuals, % | 0 to 0.23 | |
| 0 |