C61900 Bronze vs. Nuclear Grade Hafnium
C61900 bronze belongs to the copper 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 (12, in this case) are not shown.
For each property being compared, the top bar is C61900 bronze and the bottom bar is nuclear grade hafnium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 78 |
| Elongation at Break, % | 21 to 32 | |
| 25 |
| Poisson's Ratio | 0.34 | |
| 0.26 |
| Shear Modulus, GPa | 43 | |
| 31 |
| Tensile Strength: Ultimate (UTS), MPa | 570 to 650 | |
| 350 |
| Tensile Strength: Yield (Proof), MPa | 230 to 310 | |
| 170 |
Thermal Properties
| Latent Heat of Fusion, J/g | 230 | |
| 130 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 140 |
| Thermal Expansion, µm/m-K | 18 | |
| 5.9 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.3 | |
| 13 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 150 | |
| 73 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 230 to 430 | |
| 180 |
| Stiffness to Weight: Axial, points | 7.6 | |
| 3.3 |
| Stiffness to Weight: Bending, points | 19 | |
| 11 |
| Strength to Weight: Axial, points | 19 to 22 | |
| 7.4 |
| Strength to Weight: Bending, points | 18 to 20 | |
| 8.4 |
| Thermal Shock Resistance, points | 20 to 23 | |
| 55 |
Alloy Composition
| Aluminum (Al), % | 8.5 to 10 | |
| 0 |
| Copper (Cu), % | 83.6 to 88.5 | |
| 0 |
| Hafnium (Hf), % | 0 | |
| 99.8 to 100 |
| Iron (Fe), % | 3.0 to 4.5 | |
| 0 |
| Lead (Pb), % | 0 to 0.020 | |
| 0 |
| Tin (Sn), % | 0 to 0.6 | |
| 0 |
| Zinc (Zn), % | 0 to 0.8 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.23 |