ASTM A514 Steel vs. Nuclear Grade Hafnium
ASTM A514 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 (14, in this case) are not shown.
For each property being compared, the top bar is ASTM A514 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, % | 18 to 21 | |
| 25 |
| Poisson's Ratio | 0.29 | |
| 0.26 |
| Shear Modulus, GPa | 73 | |
| 31 |
| Tensile Strength: Ultimate (UTS), MPa | 790 to 830 | |
| 350 |
| Tensile Strength: Yield (Proof), MPa | 690 to 770 | |
| 170 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 to 260 | |
| 130 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 140 |
| Thermal Expansion, µm/m-K | 13 | |
| 5.9 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.8 to 7.9 | |
| 13 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 170 | |
| 73 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1280 to 1590 | |
| 180 |
| Stiffness to Weight: Axial, points | 13 | |
| 3.3 |
| Stiffness to Weight: Bending, points | 24 | |
| 11 |
| Strength to Weight: Axial, points | 28 to 29 | |
| 7.4 |
| Strength to Weight: Bending, points | 24 to 25 | |
| 8.4 |
| Thermal Shock Resistance, points | 23 to 24 | |
| 55 |