Class 1 Tungsten vs. EN 1.4031 Stainless Steel
Class 1 tungsten belongs to the otherwise unclassified metals classification, while EN 1.4031 stainless steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is class 1 tungsten and the bottom bar is EN 1.4031 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 250 | |
| 190 |
| Elongation at Break, % | 5.7 | |
| 11 to 13 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 98 | |
| 76 |
| Tensile Strength: Ultimate (UTS), MPa | 860 | |
| 670 to 900 |
| Tensile Strength: Yield (Proof), MPa | 580 | |
| 390 to 730 |
Thermal Properties
| Latent Heat of Fusion, J/g | 160 | |
| 280 |
| Specific Heat Capacity, J/kg-K | 120 | |
| 480 |
| Thermal Conductivity, W/m-K | 21 | |
| 30 |
| Thermal Expansion, µm/m-K | 5.1 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 12 | |
| 3.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 7.4 | |
| 3.7 |
Otherwise Unclassified Properties
| Density, g/cm3 | 15 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 22 | |
| 1.9 |
| Embodied Energy, MJ/kg | 340 | |
| 27 |
| Embodied Water, L/kg | 140 | |
| 100 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 44 | |
| 77 to 94 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 660 | |
| 380 to 1360 |
| Stiffness to Weight: Axial, points | 9.6 | |
| 14 |
| Stiffness to Weight: Bending, points | 14 | |
| 25 |
| Strength to Weight: Axial, points | 16 | |
| 24 to 32 |
| Strength to Weight: Bending, points | 14 | |
| 22 to 27 |
| Thermal Diffusivity, mm2/s | 12 | |
| 8.1 |
| Thermal Shock Resistance, points | 48 | |
| 23 to 32 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0.36 to 0.42 |
| Chromium (Cr), % | 0 | |
| 12.5 to 14.5 |
| Iron (Fe), % | 0 | |
| 83 to 87.1 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.015 |
| Tungsten (W), % | 90 | |
| 0 |
| Residuals, % | 10 | |
| 0 |