EN 1.7711 Steel vs. Type 4 Niobium
EN 1.7711 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 (11, in this case) are not shown.
For each property being compared, the top bar is EN 1.7711 steel and the bottom bar is Type 4 niobium.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 210 to 280 | |
| 120 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 110 |
| Elongation at Break, % | 16 to 22 | |
| 23 |
| Poisson's Ratio | 0.29 | |
| 0.4 |
| Shear Modulus, GPa | 73 | |
| 38 |
| Tensile Strength: Ultimate (UTS), MPa | 690 to 930 | |
| 220 |
| Tensile Strength: Yield (Proof), MPa | 400 to 800 | |
| 140 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 310 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 270 |
| Thermal Conductivity, W/m-K | 33 | |
| 42 |
| Thermal Expansion, µm/m-K | 11 | |
| 7.3 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.8 | |
| 8.6 |
| Embodied Water, L/kg | 54 | |
| 160 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 to 140 | |
| 44 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 430 to 1690 | |
| 93 |
| Stiffness to Weight: Axial, points | 13 | |
| 6.8 |
| Stiffness to Weight: Bending, points | 24 | |
| 18 |
| Strength to Weight: Axial, points | 24 to 33 | |
| 7.2 |
| Strength to Weight: Bending, points | 22 to 27 | |
| 9.5 |
| Thermal Diffusivity, mm2/s | 8.9 | |
| 18 |
| Thermal Shock Resistance, points | 24 to 32 | |
| 21 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.015 | |
| 0 |
| Carbon (C), % | 0.36 to 0.44 | |
| 0 to 0.010 |
| Chromium (Cr), % | 0.9 to 1.2 | |
| 0 |
| Hafnium (Hf), % | 0 | |
| 0 to 0.020 |
| Hydrogen (H), % | 0 | |
| 0 to 0.0015 |
| Iron (Fe), % | 96 to 97.5 | |
| 0 to 0.010 |
| Manganese (Mn), % | 0.45 to 0.85 | |
| 0 |
| Molybdenum (Mo), % | 0.5 to 0.65 | |
| 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 0.030 | |
| 0 |
| Tantalum (Ta), % | 0 | |
| 0 to 0.5 |
| Titanium (Ti), % | 0 | |
| 0 to 0.020 |
| Tungsten (W), % | 0 | |
| 0 to 0.050 |
| Vanadium (V), % | 0.25 to 0.35 | |
| 0 |
| Zirconium (Zr), % | 0 | |
| 0.8 to 1.2 |