Nuclear Grade Hafnium vs. AISI 301LN Stainless Steel
Nuclear grade hafnium belongs to the otherwise unclassified metals classification, while AISI 301LN stainless steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.
For each property being compared, the top bar is nuclear grade hafnium and the bottom bar is AISI 301LN stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 78 | |
| 200 |
| Elongation at Break, % | 25 | |
| 23 to 51 |
| Poisson's Ratio | 0.26 | |
| 0.28 |
| Shear Modulus, GPa | 31 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 350 | |
| 630 to 1060 |
| Tensile Strength: Yield (Proof), MPa | 170 | |
| 270 to 770 |
Thermal Properties
| Latent Heat of Fusion, J/g | 130 | |
| 280 |
| Specific Heat Capacity, J/kg-K | 140 | |
| 480 |
| Thermal Expansion, µm/m-K | 5.9 | |
| 16 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 7.8 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 73 | |
| 220 to 290 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 180 | |
| 180 to 1520 |
| Stiffness to Weight: Axial, points | 3.3 | |
| 14 |
| Stiffness to Weight: Bending, points | 11 | |
| 25 |
| Strength to Weight: Axial, points | 7.4 | |
| 22 to 38 |
| Strength to Weight: Bending, points | 8.4 | |
| 21 to 30 |
| Thermal Shock Resistance, points | 55 | |
| 14 to 24 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0 to 0.030 |
| Chromium (Cr), % | 0 | |
| 16 to 18 |
| Hafnium (Hf), % | 99.8 to 100 | |
| 0 |
| Iron (Fe), % | 0 | |
| 70.7 to 77.9 |
| Manganese (Mn), % | 0 | |
| 0 to 2.0 |
| Nickel (Ni), % | 0 | |
| 6.0 to 8.0 |
| Nitrogen (N), % | 0 | |
| 0.070 to 0.2 |
| Phosphorus (P), % | 0 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Residuals, % | 0 to 0.23 | |
| 0 |