Nuclear Grade Hafnium vs. ASTM B477 Au-Ni-Ag
Both nuclear grade hafnium and ASTM B477 Au-Ni-Ag are otherwise unclassified metals. There are 14 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is nuclear grade hafnium and the bottom bar is ASTM B477 Au-Ni-Ag.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 78 | |
| 95 |
| Elongation at Break, % | 25 | |
| 5.5 to 11 |
| Poisson's Ratio | 0.26 | |
| 0.41 |
| Shear Modulus, GPa | 31 | |
| 34 |
| Tensile Strength: Ultimate (UTS), MPa | 350 | |
| 310 to 550 |
Thermal Properties
| Latent Heat of Fusion, J/g | 130 | |
| 80 |
| Specific Heat Capacity, J/kg-K | 140 | |
| 160 |
| Thermal Expansion, µm/m-K | 5.9 | |
| 15 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 17 |
Common Calculations
| Stiffness to Weight: Axial, points | 3.3 | |
| 3.1 |
| Stiffness to Weight: Bending, points | 11 | |
| 8.9 |
| Strength to Weight: Axial, points | 7.4 | |
| 5.0 to 9.0 |
| Strength to Weight: Bending, points | 8.4 | |
| 6.0 to 8.8 |
| Thermal Shock Resistance, points | 55 | |
| 16 to 28 |
Alloy Composition
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| Gold (Au), % | 0 | |
| 74.2 to 75.8 |
| Hafnium (Hf), % | 99.8 to 100 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 2.6 to 3.4 |
| Silver (Ag), % | 0 | |
| 21.4 to 22.6 |
| Residuals, % | 0 to 0.23 | |
| 0 to 0.3 |