Reactor Grade Zirconium vs. R60704 Alloy
Both reactor grade zirconium and R60704 alloy are otherwise unclassified metals. Both are furnished in the annealed condition. They have a very high 96% of their average alloy composition in common.
For each property being compared, the top bar is reactor grade zirconium and the bottom bar is R60704 alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 98 | |
| 97 |
| Elongation at Break, % | 21 | |
| 16 |
| Poisson's Ratio | 0.34 | |
| 0.34 |
| Shear Modulus, GPa | 37 | |
| 36 |
| Tensile Strength: Ultimate (UTS), MPa | 330 | |
| 470 |
| Tensile Strength: Yield (Proof), MPa | 160 | |
| 270 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 240 |
| Specific Heat Capacity, J/kg-K | 270 | |
| 270 |
| Thermal Conductivity, W/m-K | 22 | |
| 22 |
| Thermal Expansion, µm/m-K | 5.9 | |
| 6.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 6.5 | |
| 6.7 |
| Embodied Water, L/kg | 280 | |
| 460 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 56 | |
| 64 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 | |
| 370 |
| Stiffness to Weight: Axial, points | 8.4 | |
| 8.1 |
| Stiffness to Weight: Bending, points | 24 | |
| 23 |
| Strength to Weight: Axial, points | 14 | |
| 20 |
| Strength to Weight: Bending, points | 16 | |
| 20 |
| Thermal Diffusivity, mm2/s | 13 | |
| 12 |
| Thermal Shock Resistance, points | 41 | |
| 58 |
Alloy Composition
| Carbon (C), % | 0 | |
| 0 to 0.050 |
| Chromium (Cr), % | 0 | |
| 0.2 to 0.4 |
| Hafnium (Hf), % | 0 | |
| 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), % | 99.7 to 100 | |
| 93 to 98.8 |
| Residuals, % | 0 to 0.27 | |
| 0 |