Nuclear Grade Hafnium vs. ASTM A572 Steel
Nuclear grade hafnium belongs to the otherwise unclassified metals classification, while ASTM A572 steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.
For each property being compared, the top bar is nuclear grade hafnium and the bottom bar is ASTM A572 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 78 | |
| 190 |
| Elongation at Break, % | 25 | |
| 18 to 25 |
| Poisson's Ratio | 0.26 | |
| 0.29 |
| Shear Modulus, GPa | 31 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 350 | |
| 470 to 620 |
| Tensile Strength: Yield (Proof), MPa | 170 | |
| 330 to 510 |
Thermal Properties
| Latent Heat of Fusion, J/g | 130 | |
| 250 |
| Specific Heat Capacity, J/kg-K | 140 | |
| 470 |
| Thermal Expansion, µm/m-K | 5.9 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 7.8 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 73 | |
| 100 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 180 | |
| 290 to 690 |
| Stiffness to Weight: Axial, points | 3.3 | |
| 13 |
| Stiffness to Weight: Bending, points | 11 | |
| 24 |
| Strength to Weight: Axial, points | 7.4 | |
| 17 to 22 |
| Strength to Weight: Bending, points | 8.4 | |
| 17 to 21 |
| Thermal Shock Resistance, points | 55 | |
| 14 to 18 |