AISI 301L Stainless Steel vs. Type 4 Niobium
AISI 301L stainless steel belongs to the iron alloys classification, while Type 4 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 301L stainless steel and the bottom bar is Type 4 niobium.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 210 to 320 | |
| 120 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 110 |
| Elongation at Break, % | 22 to 50 | |
| 23 |
| Poisson's Ratio | 0.28 | |
| 0.4 |
| Shear Modulus, GPa | 77 | |
| 38 |
| Tensile Strength: Ultimate (UTS), MPa | 620 to 1040 | |
| 220 |
| Tensile Strength: Yield (Proof), MPa | 250 to 790 | |
| 140 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 310 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 270 |
| Thermal Conductivity, W/m-K | 15 | |
| 42 |
| Thermal Expansion, µm/m-K | 16 | |
| 7.3 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.8 | |
| 8.6 |
| Embodied Water, L/kg | 130 | |
| 160 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 210 to 300 | |
| 44 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 160 to 1580 | |
| 93 |
| Stiffness to Weight: Axial, points | 14 | |
| 6.8 |
| Stiffness to Weight: Bending, points | 25 | |
| 18 |
| Strength to Weight: Axial, points | 22 to 37 | |
| 7.2 |
| Strength to Weight: Bending, points | 21 to 29 | |
| 9.5 |
| Thermal Diffusivity, mm2/s | 4.1 | |
| 18 |
| Thermal Shock Resistance, points | 14 to 24 | |
| 21 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 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), % | 70.7 to 78 | |
| 0 to 0.010 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.050 |
| Nickel (Ni), % | 6.0 to 8.0 | |
| 0 to 0.0050 |
| Niobium (Nb), % | 0 | |
| 98.1 to 99.2 |
| Nitrogen (N), % | 0 to 0.2 | |
| 0 to 0.010 |
| Oxygen (O), % | 0 | |
| 0 to 0.025 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.0050 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Tantalum (Ta), % | 0 | |
| 0 to 0.5 |
| Titanium (Ti), % | 0 | |
| 0 to 0.020 |
| Tungsten (W), % | 0 | |
| 0 to 0.050 |
| Zirconium (Zr), % | 0 | |
| 0.8 to 1.2 |