Type 3 Niobium vs. ASTM A732 Cast Steel
Type 3 niobium belongs to the otherwise unclassified metals classification, while ASTM A732 cast steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is Type 3 niobium and the bottom bar is ASTM A732 cast steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 110 | |
| 140 to 440 |
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 190 |
| Elongation at Break, % | 23 | |
| 4.0 to 25 |
| Poisson's Ratio | 0.4 | |
| 0.29 |
| Shear Modulus, GPa | 38 | |
| 72 to 73 |
| Tensile Strength: Ultimate (UTS), MPa | 220 | |
| 460 to 1470 |
| Tensile Strength: Yield (Proof), MPa | 140 | |
| 310 to 1340 |
Thermal Properties
| Latent Heat of Fusion, J/g | 310 | |
| 250 to 260 |
| Specific Heat Capacity, J/kg-K | 270 | |
| 470 to 480 |
| Thermal Conductivity, W/m-K | 42 | |
| 39 to 50 |
| Thermal Expansion, µm/m-K | 7.3 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.6 | |
| 7.8 to 7.9 |
| Embodied Water, L/kg | 160 | |
| 47 to 54 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 44 | |
| 45 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 93 | |
| 260 to 4770 |
| Stiffness to Weight: Axial, points | 6.8 | |
| 13 |
| Stiffness to Weight: Bending, points | 18 | |
| 24 |
| Strength to Weight: Axial, points | 7.2 | |
| 16 to 52 |
| Strength to Weight: Bending, points | 9.5 | |
| 17 to 37 |
| Thermal Diffusivity, mm2/s | 18 | |
| 10 to 14 |
| Thermal Shock Resistance, points | 21 | |
| 14 to 43 |