AISI 305 Stainless Steel vs. Nuclear Grade Hafnium
AISI 305 stainless 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 (17, in this case) are not shown.
For each property being compared, the top bar is AISI 305 stainless steel and the bottom bar is nuclear grade hafnium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 78 |
| Elongation at Break, % | 34 to 45 | |
| 25 |
| Poisson's Ratio | 0.28 | |
| 0.26 |
| Shear Modulus, GPa | 77 | |
| 31 |
| Tensile Strength: Ultimate (UTS), MPa | 580 to 710 | |
| 350 |
| Tensile Strength: Yield (Proof), MPa | 230 to 350 | |
| 170 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 130 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 140 |
| Thermal Expansion, µm/m-K | 17 | |
| 5.9 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.8 | |
| 13 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 200 to 210 | |
| 73 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 to 320 | |
| 180 |
| Stiffness to Weight: Axial, points | 14 | |
| 3.3 |
| Stiffness to Weight: Bending, points | 25 | |
| 11 |
| Strength to Weight: Axial, points | 20 to 25 | |
| 7.4 |
| Strength to Weight: Bending, points | 20 to 23 | |
| 8.4 |
| Thermal Shock Resistance, points | 13 to 15 | |
| 55 |
Alloy Composition
| Carbon (C), % | 0 to 0.12 | |
| 0 |
| Chromium (Cr), % | 17 to 19 | |
| 0 |
| Hafnium (Hf), % | 0 | |
| 99.8 to 100 |
| Iron (Fe), % | 65.1 to 72.5 | |
| 0 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 |
| Nickel (Ni), % | 10.5 to 13 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.23 |