Grade 705C Zirconium vs. C70620 Copper-nickel
Grade 705C zirconium belongs to the otherwise unclassified metals classification, while C70620 copper-nickel belongs to the copper alloys. There are 17 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is grade 705C zirconium and the bottom bar is C70620 copper-nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 98 | |
| 120 |
| Poisson's Ratio | 0.34 | |
| 0.34 |
| Rockwell B Hardness | 87 | |
| 65 to 87 |
| Shear Modulus, GPa | 36 | |
| 46 |
| Tensile Strength: Ultimate (UTS), MPa | 540 | |
| 300 to 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 220 |
| Specific Heat Capacity, J/kg-K | 270 | |
| 390 |
| Thermal Conductivity, W/m-K | 18 | |
| 49 |
| Thermal Expansion, µm/m-K | 5.7 | |
| 17 |
Otherwise Unclassified Properties
| Density, g/cm3 | 6.7 | |
| 8.9 |
| Embodied Water, L/kg | 450 | |
| 300 |
Common Calculations
| Stiffness to Weight: Axial, points | 8.1 | |
| 7.7 |
| Stiffness to Weight: Bending, points | 23 | |
| 19 |
| Strength to Weight: Axial, points | 22 | |
| 9.3 to 18 |
| Strength to Weight: Bending, points | 22 | |
| 11 to 17 |
| Thermal Diffusivity, mm2/s | 9.9 | |
| 14 |
| Thermal Shock Resistance, points | 69 | |
| 10 to 20 |
Alloy Composition
| Carbon (C), % | 0 to 0.1 | |
| 0 to 0.050 |
| Copper (Cu), % | 0 | |
| 86.5 to 90 |
| Hafnium (Hf), % | 0 to 4.5 | |
| 0 |
| Hydrogen (H), % | 0 to 0.0050 | |
| 0 |
| Iron (Fe), % | 0 to 0.3 | |
| 1.0 to 1.8 |
| Lead (Pb), % | 0 | |
| 0 to 0.020 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Nickel (Ni), % | 0 | |
| 9.0 to 11 |
| Niobium (Nb), % | 2.0 to 3.0 | |
| 0 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.3 | |
| 0 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 to 0.2 |
| Sulfur (S), % | 0 | |
| 0 to 0.020 |
| Zinc (Zn), % | 0 | |
| 0 to 0.5 |
| Zirconium (Zr), % | 91.9 to 98 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.5 |