ZA-8 vs. Nuclear Grade Hafnium
ZA-8 belongs to the zinc 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 (19, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is ZA-8 and the bottom bar is nuclear grade hafnium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 85 to 86 | |
| 78 |
| Elongation at Break, % | 1.3 to 8.0 | |
| 25 |
| Poisson's Ratio | 0.26 | |
| 0.26 |
| Shear Modulus, GPa | 34 | |
| 31 |
| Tensile Strength: Ultimate (UTS), MPa | 210 to 370 | |
| 350 |
| Tensile Strength: Yield (Proof), MPa | 210 to 290 | |
| 170 |
Thermal Properties
| Latent Heat of Fusion, J/g | 110 | |
| 130 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 140 |
| Thermal Expansion, µm/m-K | 23 | |
| 5.9 |
Otherwise Unclassified Properties
| Density, g/cm3 | 6.3 | |
| 13 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 2.8 to 28 | |
| 73 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 260 to 490 | |
| 180 |
| Stiffness to Weight: Axial, points | 7.5 | |
| 3.3 |
| Stiffness to Weight: Bending, points | 23 | |
| 11 |
| Strength to Weight: Axial, points | 9.3 to 17 | |
| 7.4 |
| Strength to Weight: Bending, points | 12 to 18 | |
| 8.4 |
| Thermal Shock Resistance, points | 7.6 to 13 | |
| 55 |
Alloy Composition
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| Aluminum (Al), % | 8.0 to 8.8 | |
| 0 |
| Cadmium (Cd), % | 0 to 0.0060 | |
| 0 |
| Copper (Cu), % | 0.8 to 1.3 | |
| 0 |
| Hafnium (Hf), % | 0 | |
| 99.8 to 100 |
| Iron (Fe), % | 0 to 0.075 | |
| 0 |
| Lead (Pb), % | 0 to 0.0060 | |
| 0 |
| Magnesium (Mg), % | 0.015 to 0.030 | |
| 0 |
| Nickel (Ni), % | 0 to 0.020 | |
| 0 |
| Silicon (Si), % | 0 to 0.045 | |
| 0 |
| Tin (Sn), % | 0 to 0.0030 | |
| 0 |
| Zinc (Zn), % | 89.7 to 91.2 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.23 |