Nuclear Grade Hafnium vs. EN 1.7149 Steel
Nuclear grade hafnium belongs to the otherwise unclassified metals classification, while EN 1.7149 steel belongs to the iron alloys. There are 13 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 EN 1.7149 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 78 | |
190 |
Poisson's Ratio | 0.26 | |
0.29 |
Shear Modulus, GPa | 31 | |
73 |
Tensile Strength: Ultimate (UTS), MPa | 350 | |
500 to 1460 |
Thermal Properties
Latent Heat of Fusion, J/g | 130 | |
250 |
Specific Heat Capacity, J/kg-K | 140 | |
470 |
Thermal Expansion, µm/m-K | 5.9 | |
13 |
Otherwise Unclassified Properties
Density, g/cm3 | 13 | |
7.8 |
Common Calculations
Stiffness to Weight: Axial, points | 3.3 | |
13 |
Stiffness to Weight: Bending, points | 11 | |
24 |
Strength to Weight: Axial, points | 7.4 | |
18 to 52 |
Strength to Weight: Bending, points | 8.4 | |
18 to 36 |
Thermal Shock Resistance, points | 55 | |
15 to 42 |
Alloy Composition
Carbon (C), % | 0 | |
0.17 to 0.22 |
Chromium (Cr), % | 0 | |
1.0 to 1.3 |
Copper (Cu), % | 0 | |
0 to 0.25 |
Hafnium (Hf), % | 99.8 to 100 | |
0 |
Iron (Fe), % | 0 | |
96.5 to 97.7 |
Manganese (Mn), % | 0 | |
1.1 to 1.4 |
Phosphorus (P), % | 0 | |
0 to 0.025 |
Silicon (Si), % | 0 | |
0 to 0.3 |
Sulfur (S), % | 0 | |
0.020 to 0.040 |
Residuals, % | 0 to 0.23 | |
0 |