Nuclear Grade Hafnium vs. R60704 Alloy
Both nuclear grade hafnium and R60704 alloy are otherwise unclassified metals. Both are furnished in the annealed condition. There are 17 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is nuclear grade hafnium and the bottom bar is R60704 alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 78 | |
| 97 |
| Elongation at Break, % | 25 | |
| 16 |
| Poisson's Ratio | 0.26 | |
| 0.34 |
| Shear Modulus, GPa | 31 | |
| 36 |
| Tensile Strength: Ultimate (UTS), MPa | 350 | |
| 470 |
| Tensile Strength: Yield (Proof), MPa | 170 | |
| 270 |
Thermal Properties
| Latent Heat of Fusion, J/g | 130 | |
| 240 |
| Specific Heat Capacity, J/kg-K | 140 | |
| 270 |
| Thermal Expansion, µm/m-K | 5.9 | |
| 6.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 6.7 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 73 | |
| 64 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 180 | |
| 370 |
| Stiffness to Weight: Axial, points | 3.3 | |
| 8.1 |
| Stiffness to Weight: Bending, points | 11 | |
| 23 |
| Strength to Weight: Axial, points | 7.4 | |
| 20 |
| Strength to Weight: Bending, points | 8.4 | |
| 20 |
| Thermal Shock Resistance, points | 55 | |
| 58 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0 to 0.050 |
| Chromium (Cr), % | 0 | |
| 0.2 to 0.4 |
| Hafnium (Hf), % | 99.8 to 100 | |
| 0 to 4.5 |
| Hydrogen (H), % | 0 | |
| 0 to 0.0050 |
| Iron (Fe), % | 0 | |
| 0.2 to 0.4 |
| Nitrogen (N), % | 0 | |
| 0 to 0.025 |
| Oxygen (O), % | 0 | |
| 0 to 0.18 |
| Tin (Sn), % | 0 | |
| 1.0 to 2.0 |
| Zirconium (Zr), % | 0 | |
| 93 to 98.8 |
| Residuals, % | 0 to 0.23 | |
| 0 |