SAE-AISI 1552 Steel vs. Nuclear Grade Hafnium
SAE-AISI 1552 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 (15, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI 1552 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, % | 11 to 14 | |
| 25 |
| Poisson's Ratio | 0.29 | |
| 0.26 |
| Shear Modulus, GPa | 72 | |
| 31 |
| Tensile Strength: Ultimate (UTS), MPa | 760 to 840 | |
| 350 |
| Tensile Strength: Yield (Proof), MPa | 460 to 650 | |
| 170 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 130 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 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 | 81 to 98 | |
| 73 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 560 to 1130 | |
| 180 |
| Stiffness to Weight: Axial, points | 13 | |
| 3.3 |
| Stiffness to Weight: Bending, points | 24 | |
| 11 |
| Strength to Weight: Axial, points | 27 to 30 | |
| 7.4 |
| Strength to Weight: Bending, points | 24 to 25 | |
| 8.4 |
| Thermal Shock Resistance, points | 26 to 29 | |
| 55 |
Alloy Composition
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| Carbon (C), % | 0.47 to 0.55 | |
| 0 |
| Hafnium (Hf), % | 0 | |
| 99.8 to 100 |
| Iron (Fe), % | 97.9 to 98.3 | |
| 0 |
| Manganese (Mn), % | 1.2 to 1.5 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Sulfur (S), % | 0 to 0.050 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.23 |