Class 4 Tungsten vs. EN 1.4945 Stainless Steel
Class 4 tungsten belongs to the otherwise unclassified metals classification, while EN 1.4945 stainless steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is class 4 tungsten and the bottom bar is EN 1.4945 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 270 | |
| 200 |
| Elongation at Break, % | 2.3 | |
| 19 to 34 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 110 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 790 | |
| 640 to 740 |
| Tensile Strength: Yield (Proof), MPa | 580 | |
| 290 to 550 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 290 |
| Specific Heat Capacity, J/kg-K | 130 | |
| 470 |
| Thermal Conductivity, W/m-K | 30 | |
| 14 |
| Thermal Expansion, µm/m-K | 4.5 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 17 | |
| 2.9 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 9.7 | |
| 3.2 |
Otherwise Unclassified Properties
| Density, g/cm3 | 16 | |
| 8.1 |
| Embodied Carbon, kg CO2/kg material | 24 | |
| 5.0 |
| Embodied Energy, MJ/kg | 360 | |
| 73 |
| Embodied Water, L/kg | 150 | |
| 150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 16 | |
| 130 to 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 620 | |
| 210 to 760 |
| Stiffness to Weight: Axial, points | 9.6 | |
| 14 |
| Stiffness to Weight: Bending, points | 14 | |
| 24 |
| Strength to Weight: Axial, points | 14 | |
| 22 to 25 |
| Strength to Weight: Bending, points | 12 | |
| 20 to 22 |
| Thermal Diffusivity, mm2/s | 15 | |
| 3.7 |
| Thermal Shock Resistance, points | 46 | |
| 14 to 16 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0.040 to 0.1 |
| Chromium (Cr), % | 0 | |
| 15.5 to 17.5 |
| Iron (Fe), % | 0 | |
| 57.9 to 65.7 |
| Manganese (Mn), % | 0 | |
| 0 to 1.5 |
| Nickel (Ni), % | 0 | |
| 15.5 to 17.5 |
| Niobium (Nb), % | 0 | |
| 0.4 to 1.2 |
| Nitrogen (N), % | 0 | |
| 0.060 to 0.14 |
| Phosphorus (P), % | 0 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 | |
| 0.3 to 0.6 |
| Sulfur (S), % | 0 | |
| 0 to 0.015 |
| Tungsten (W), % | 97 | |
| 2.5 to 3.5 |
| Residuals, % | 3.0 | |
| 0 |