EN 1.4740 Stainless Steel vs. Class 1 Tungsten
EN 1.4740 stainless steel belongs to the iron alloys classification, while class 1 tungsten belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.
For each property being compared, the top bar is EN 1.4740 stainless steel and the bottom bar is class 1 tungsten.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 250 |
| Elongation at Break, % | 22 | |
| 5.7 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 98 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 160 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 120 |
| Thermal Conductivity, W/m-K | 18 | |
| 21 |
| Thermal Expansion, µm/m-K | 10 | |
| 5.1 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.2 | |
| 12 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.6 | |
| 7.4 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.6 | |
| 15 |
| Embodied Carbon, kg CO2/kg material | 2.3 | |
| 22 |
| Embodied Energy, MJ/kg | 32 | |
| 340 |
| Embodied Water, L/kg | 120 | |
| 140 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 9.6 |
| Stiffness to Weight: Bending, points | 25 | |
| 14 |
| Thermal Diffusivity, mm2/s | 4.8 | |
| 12 |
Alloy Composition
| Carbon (C), % | 0.3 to 0.5 | |
| 0 |
| Chromium (Cr), % | 16 to 19 | |
| 0 |
| Iron (Fe), % | 75.4 to 82.7 | |
| 0 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 |
| Molybdenum (Mo), % | 0 to 0.5 | |
| 0 |
| Nickel (Ni), % | 0 to 1.0 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 1.0 to 2.5 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Tungsten (W), % | 0 | |
| 90 |
| Residuals, % | 0 | |
| 10 |