AISI 201 Stainless Steel vs. Type 2 Niobium
AISI 201 stainless steel belongs to the iron alloys classification, while Type 2 niobium belongs to the otherwise unclassified metals. 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 AISI 201 stainless steel and the bottom bar is Type 2 niobium.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 to 440 | |
| 110 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 110 |
| Elongation at Break, % | 4.6 to 51 | |
| 29 |
| Poisson's Ratio | 0.28 | |
| 0.4 |
| Shear Modulus, GPa | 77 | |
| 38 |
| Tensile Strength: Ultimate (UTS), MPa | 650 to 1450 | |
| 140 |
| Tensile Strength: Yield (Proof), MPa | 300 to 1080 | |
| 82 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 320 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 270 |
| Thermal Conductivity, W/m-K | 15 | |
| 52 |
| Thermal Expansion, µm/m-K | 17 | |
| 7.3 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.7 | |
| 8.6 |
| Embodied Water, L/kg | 140 | |
| 160 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 61 to 340 | |
| 35 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 230 to 2970 | |
| 32 |
| Stiffness to Weight: Axial, points | 14 | |
| 6.8 |
| Stiffness to Weight: Bending, points | 25 | |
| 18 |
| Strength to Weight: Axial, points | 23 to 52 | |
| 4.6 |
| Strength to Weight: Bending, points | 22 to 37 | |
| 7.1 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 23 |
| Thermal Shock Resistance, points | 14 to 32 | |
| 13 |
Alloy Composition
| Carbon (C), % | 0 to 0.15 | |
| 0 to 0.010 |
| Chromium (Cr), % | 16 to 18 | |
| 0 |
| Hafnium (Hf), % | 0 | |
| 0 to 0.020 |
| Hydrogen (H), % | 0 | |
| 0 to 0.0015 |
| Iron (Fe), % | 67.5 to 75 | |
| 0 to 0.010 |
| Manganese (Mn), % | 5.5 to 7.5 | |
| 0 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.020 |
| Nickel (Ni), % | 3.5 to 5.5 | |
| 0 to 0.0050 |
| Niobium (Nb), % | 0 | |
| 99.5 to 100 |
| Nitrogen (N), % | 0 to 0.25 | |
| 0 to 0.010 |
| Oxygen (O), % | 0 | |
| 0 to 0.025 |
| Phosphorus (P), % | 0 to 0.060 | |
| 0 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.0050 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Tantalum (Ta), % | 0 | |
| 0 to 0.3 |
| Titanium (Ti), % | 0 | |
| 0 to 0.030 |
| Tungsten (W), % | 0 | |
| 0 to 0.050 |
| Zirconium (Zr), % | 0 | |
| 0 to 0.020 |