Nuclear Grade Hafnium vs. C65400 Bronze
Nuclear grade hafnium belongs to the otherwise unclassified metals classification, while C65400 bronze belongs to the copper alloys. 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 nuclear grade hafnium and the bottom bar is C65400 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 78 | |
| 110 |
| Elongation at Break, % | 25 | |
| 2.6 to 47 |
| Poisson's Ratio | 0.26 | |
| 0.34 |
| Shear Modulus, GPa | 31 | |
| 43 |
| Tensile Strength: Ultimate (UTS), MPa | 350 | |
| 500 to 1060 |
| Tensile Strength: Yield (Proof), MPa | 170 | |
| 170 to 910 |
Thermal Properties
| Latent Heat of Fusion, J/g | 130 | |
| 260 |
| Specific Heat Capacity, J/kg-K | 140 | |
| 400 |
| Thermal Expansion, µm/m-K | 5.9 | |
| 17 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 8.7 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 73 | |
| 10 to 480 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 180 | |
| 130 to 3640 |
| Stiffness to Weight: Axial, points | 3.3 | |
| 7.3 |
| Stiffness to Weight: Bending, points | 11 | |
| 19 |
| Strength to Weight: Axial, points | 7.4 | |
| 16 to 34 |
| Strength to Weight: Bending, points | 8.4 | |
| 16 to 27 |
| Thermal Shock Resistance, points | 55 | |
| 18 to 39 |
Alloy Composition
| Chromium (Cr), % | 0 | |
| 0.010 to 0.12 |
| Copper (Cu), % | 0 | |
| 93.8 to 96.1 |
| Hafnium (Hf), % | 99.8 to 100 | |
| 0 |
| Lead (Pb), % | 0 | |
| 0 to 0.050 |
| Silicon (Si), % | 0 | |
| 2.7 to 3.4 |
| Tin (Sn), % | 0 | |
| 1.2 to 1.9 |
| Zinc (Zn), % | 0 | |
| 0 to 0.5 |
| Residuals, % | 0 | |
| 0 to 0.2 |