Nuclear Grade Hafnium vs. EN 1.4612 Stainless Steel
Nuclear grade hafnium belongs to the otherwise unclassified metals classification, while EN 1.4612 stainless steel belongs to the iron alloys. There are 16 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 nuclear grade hafnium and the bottom bar is EN 1.4612 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 78 | |
| 190 |
| Elongation at Break, % | 25 | |
| 11 |
| Poisson's Ratio | 0.26 | |
| 0.28 |
| Shear Modulus, GPa | 31 | |
| 76 |
| Tensile Strength: Ultimate (UTS), MPa | 350 | |
| 1690 to 1850 |
| Tensile Strength: Yield (Proof), MPa | 170 | |
| 1570 to 1730 |
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 | |
| 11 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 7.9 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 73 | |
| 190 to 210 |
| Stiffness to Weight: Axial, points | 3.3 | |
| 14 |
| Stiffness to Weight: Bending, points | 11 | |
| 25 |
| Strength to Weight: Axial, points | 7.4 | |
| 60 to 65 |
| Strength to Weight: Bending, points | 8.4 | |
| 40 to 43 |
| Thermal Shock Resistance, points | 55 | |
| 58 to 63 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 1.4 to 1.8 |
| Carbon (C), % | 0 | |
| 0 to 0.015 |
| Chromium (Cr), % | 0 | |
| 11 to 12.5 |
| Hafnium (Hf), % | 99.8 to 100 | |
| 0 |
| Iron (Fe), % | 0 | |
| 71.5 to 75.5 |
| Manganese (Mn), % | 0 | |
| 0 to 0.1 |
| Molybdenum (Mo), % | 0 | |
| 1.8 to 2.3 |
| Nickel (Ni), % | 0 | |
| 10.2 to 11.3 |
| Nitrogen (N), % | 0 | |
| 0 to 0.010 |
| Phosphorus (P), % | 0 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 | |
| 0 to 0.1 |
| Sulfur (S), % | 0 | |
| 0 to 0.0050 |
| Titanium (Ti), % | 0 | |
| 0.2 to 0.5 |
| Residuals, % | 0 to 0.23 | |
| 0 |