Class 4 Tungsten vs. EN 1.4020 Stainless Steel
Class 4 tungsten belongs to the otherwise unclassified metals classification, while EN 1.4020 stainless steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is class 4 tungsten and the bottom bar is EN 1.4020 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 270 | |
| 200 |
| Elongation at Break, % | 2.3 | |
| 13 to 34 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 110 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 790 | |
| 770 to 1130 |
| Tensile Strength: Yield (Proof), MPa | 580 | |
| 430 to 950 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 280 |
| Specific Heat Capacity, J/kg-K | 130 | |
| 480 |
| Thermal Expansion, µm/m-K | 4.5 | |
| 17 |
Otherwise Unclassified Properties
| Density, g/cm3 | 16 | |
| 7.6 |
| Embodied Carbon, kg CO2/kg material | 24 | |
| 2.5 |
| Embodied Energy, MJ/kg | 360 | |
| 37 |
| Embodied Water, L/kg | 150 | |
| 150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 16 | |
| 140 to 220 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 620 | |
| 460 to 2290 |
| Stiffness to Weight: Axial, points | 9.6 | |
| 14 |
| Stiffness to Weight: Bending, points | 14 | |
| 25 |
| Strength to Weight: Axial, points | 14 | |
| 28 to 41 |
| Strength to Weight: Bending, points | 12 | |
| 25 to 32 |
| Thermal Shock Resistance, points | 46 | |
| 16 to 23 |
Alloy Composition
| Carbon (C), % | 0 | |
| 0 to 0.15 |
| Chromium (Cr), % | 0 | |
| 16.5 to 19 |
| Iron (Fe), % | 0 | |
| 62.8 to 71.8 |
| Manganese (Mn), % | 0 | |
| 11 to 14 |
| Nickel (Ni), % | 0 | |
| 0.5 to 2.5 |
| Nitrogen (N), % | 0 | |
| 0.2 to 0.45 |
| Phosphorus (P), % | 0 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tungsten (W), % | 97 | |
| 0 |
| Residuals, % | 3.0 | |
| 0 |