Class 4 Tungsten vs. S20910 Stainless Steel
Class 4 tungsten belongs to the otherwise unclassified metals classification, while S20910 stainless steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (13, 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 S20910 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 270 | |
| 200 |
| Elongation at Break, % | 2.3 | |
| 14 to 39 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 110 | |
| 79 |
| Tensile Strength: Ultimate (UTS), MPa | 790 | |
| 780 to 940 |
| Tensile Strength: Yield (Proof), MPa | 580 | |
| 430 to 810 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 300 |
| Specific Heat Capacity, J/kg-K | 130 | |
| 480 |
| Thermal Conductivity, W/m-K | 30 | |
| 13 |
| Thermal Expansion, µm/m-K | 4.5 | |
| 16 |
Otherwise Unclassified Properties
| Density, g/cm3 | 16 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 24 | |
| 4.8 |
| Embodied Energy, MJ/kg | 360 | |
| 68 |
| Embodied Water, L/kg | 150 | |
| 180 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 16 | |
| 120 to 260 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 620 | |
| 460 to 1640 |
| Stiffness to Weight: Axial, points | 9.6 | |
| 14 |
| Stiffness to Weight: Bending, points | 14 | |
| 25 |
| Strength to Weight: Axial, points | 14 | |
| 28 to 33 |
| Strength to Weight: Bending, points | 12 | |
| 24 to 27 |
| Thermal Diffusivity, mm2/s | 15 | |
| 3.6 |
| Thermal Shock Resistance, points | 46 | |
| 17 to 21 |
Alloy Composition
| Carbon (C), % | 0 | |
| 0 to 0.060 |
| Chromium (Cr), % | 0 | |
| 20.5 to 23.5 |
| Iron (Fe), % | 0 | |
| 52.1 to 62.1 |
| Manganese (Mn), % | 0 | |
| 4.0 to 6.0 |
| Molybdenum (Mo), % | 0 | |
| 1.5 to 3.0 |
| Nickel (Ni), % | 0 | |
| 11.5 to 13.5 |
| Niobium (Nb), % | 0 | |
| 0.1 to 0.3 |
| Nitrogen (N), % | 0 | |
| 0.2 to 0.4 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tungsten (W), % | 97 | |
| 0 |
| Vanadium (V), % | 0 | |
| 0.1 to 0.3 |
| Residuals, % | 3.0 | |
| 0 |