Type 1 Niobium vs. EN 1.4371 Stainless Steel
Type 1 niobium belongs to the otherwise unclassified metals classification, while EN 1.4371 stainless steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is Type 1 niobium and the bottom bar is EN 1.4371 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 79 | |
| 220 to 230 |
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 200 |
| Elongation at Break, % | 29 | |
| 45 to 51 |
| Poisson's Ratio | 0.4 | |
| 0.28 |
| Shear Modulus, GPa | 38 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 140 | |
| 740 to 750 |
| Tensile Strength: Yield (Proof), MPa | 82 | |
| 320 to 340 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 280 |
| Specific Heat Capacity, J/kg-K | 270 | |
| 480 |
| Thermal Conductivity, W/m-K | 52 | |
| 15 |
| Thermal Expansion, µm/m-K | 7.3 | |
| 17 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.6 | |
| 7.7 |
| Embodied Water, L/kg | 160 | |
| 140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 35 | |
| 270 to 310 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 32 | |
| 250 to 300 |
| Stiffness to Weight: Axial, points | 6.8 | |
| 14 |
| Stiffness to Weight: Bending, points | 18 | |
| 25 |
| Strength to Weight: Axial, points | 4.6 | |
| 27 |
| Strength to Weight: Bending, points | 7.1 | |
| 24 |
| Thermal Diffusivity, mm2/s | 23 | |
| 4.0 |
| Thermal Shock Resistance, points | 13 | |
| 16 |
Alloy Composition
| Carbon (C), % | 0 to 0.010 | |
| 0 to 0.030 |
| Chromium (Cr), % | 0 | |
| 16 to 17.5 |
| Copper (Cu), % | 0 | |
| 0 to 1.0 |
| Hafnium (Hf), % | 0 to 0.020 | |
| 0 |
| Hydrogen (H), % | 0 to 0.0015 | |
| 0 |
| Iron (Fe), % | 0 to 0.0050 | |
| 66.7 to 74.4 |
| Manganese (Mn), % | 0 | |
| 6.0 to 8.0 |
| Molybdenum (Mo), % | 0 to 0.010 | |
| 0 |
| Nickel (Ni), % | 0 to 0.0050 | |
| 3.5 to 5.5 |
| Niobium (Nb), % | 99.7 to 100 | |
| 0 |
| Nitrogen (N), % | 0 to 0.010 | |
| 0.15 to 0.25 |
| Oxygen (O), % | 0 to 0.015 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 0.0050 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.015 |
| Tantalum (Ta), % | 0 to 0.1 | |
| 0 |
| Titanium (Ti), % | 0 to 0.020 | |
| 0 |
| Tungsten (W), % | 0 to 0.030 | |
| 0 |
| Zirconium (Zr), % | 0 to 0.020 | |
| 0 |