ACI-ASTM CB7Cu-2 Steel vs. Nuclear Grade Hafnium
ACI-ASTM CB7Cu-2 steel belongs to the iron 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 (13, in this case) are not shown.
For each property being compared, the top bar is ACI-ASTM CB7Cu-2 steel and the bottom bar is nuclear grade hafnium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 78 |
| Elongation at Break, % | 5.7 to 11 | |
| 25 |
| Poisson's Ratio | 0.28 | |
| 0.26 |
| Shear Modulus, GPa | 75 | |
| 31 |
| Tensile Strength: Ultimate (UTS), MPa | 960 to 1350 | |
| 350 |
| Tensile Strength: Yield (Proof), MPa | 760 to 1180 | |
| 170 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 130 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 140 |
| Thermal Expansion, µm/m-K | 11 | |
| 5.9 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.8 | |
| 13 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 71 to 120 | |
| 73 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1510 to 3600 | |
| 180 |
| Stiffness to Weight: Axial, points | 14 | |
| 3.3 |
| Stiffness to Weight: Bending, points | 25 | |
| 11 |
| Strength to Weight: Axial, points | 34 to 48 | |
| 7.4 |
| Strength to Weight: Bending, points | 28 to 35 | |
| 8.4 |
| Thermal Shock Resistance, points | 32 to 45 | |
| 55 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 0 |
| Chromium (Cr), % | 14 to 15.5 | |
| 0 |
| Copper (Cu), % | 2.5 to 3.2 | |
| 0 |
| Hafnium (Hf), % | 0 | |
| 99.8 to 100 |
| Iron (Fe), % | 73.6 to 79 | |
| 0 |
| Manganese (Mn), % | 0 to 0.7 | |
| 0 |
| Nickel (Ni), % | 4.5 to 5.5 | |
| 0 |
| Niobium (Nb), % | 0 to 0.35 | |
| 0 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.23 |