EN 1.3551 Steel vs. Type 4 Niobium
EN 1.3551 steel belongs to the iron alloys classification, while Type 4 niobium belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is EN 1.3551 steel and the bottom bar is Type 4 niobium.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 220 | |
| 120 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 110 |
| Poisson's Ratio | 0.29 | |
| 0.4 |
| Shear Modulus, GPa | 75 | |
| 38 |
| Tensile Strength: Ultimate (UTS), MPa | 720 | |
| 220 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 310 |
| Specific Heat Capacity, J/kg-K | 460 | |
| 270 |
| Thermal Conductivity, W/m-K | 36 | |
| 42 |
| Thermal Expansion, µm/m-K | 13 | |
| 7.3 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.9 | |
| 8.6 |
| Embodied Water, L/kg | 82 | |
| 160 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 6.8 |
| Stiffness to Weight: Bending, points | 24 | |
| 18 |
| Strength to Weight: Axial, points | 26 | |
| 7.2 |
| Strength to Weight: Bending, points | 23 | |
| 9.5 |
| Thermal Diffusivity, mm2/s | 9.8 | |
| 18 |
| Thermal Shock Resistance, points | 21 | |
| 21 |
Alloy Composition
| Carbon (C), % | 0.77 to 0.85 | |
| 0 to 0.010 |
| Chromium (Cr), % | 3.9 to 4.3 | |
| 0 |
| Copper (Cu), % | 0 to 0.3 | |
| 0 |
| Hafnium (Hf), % | 0 | |
| 0 to 0.020 |
| Hydrogen (H), % | 0 | |
| 0 to 0.0015 |
| Iron (Fe), % | 88.8 to 91.1 | |
| 0 to 0.010 |
| Manganese (Mn), % | 0.15 to 0.35 | |
| 0 |
| Molybdenum (Mo), % | 4.0 to 4.5 | |
| 0 to 0.050 |
| Nickel (Ni), % | 0 | |
| 0 to 0.0050 |
| Niobium (Nb), % | 0 | |
| 98.1 to 99.2 |
| Nitrogen (N), % | 0 | |
| 0 to 0.010 |
| Oxygen (O), % | 0 | |
| 0 to 0.025 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 0.0050 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 |
| Tantalum (Ta), % | 0 | |
| 0 to 0.5 |
| Titanium (Ti), % | 0 | |
| 0 to 0.020 |
| Tungsten (W), % | 0 to 0.25 | |
| 0 to 0.050 |
| Vanadium (V), % | 0.9 to 1.1 | |
| 0 |
| Zirconium (Zr), % | 0 | |
| 0.8 to 1.2 |