Class 4 Tungsten vs. SAE-AISI H22 Steel
Class 4 tungsten belongs to the otherwise unclassified metals classification, while SAE-AISI H22 steel belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is class 4 tungsten and the bottom bar is SAE-AISI H22 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 270 | |
| 200 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 110 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 790 | |
| 700 to 1920 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 250 |
| Specific Heat Capacity, J/kg-K | 130 | |
| 440 |
| Thermal Conductivity, W/m-K | 30 | |
| 31 |
| Thermal Expansion, µm/m-K | 4.5 | |
| 12 |
Otherwise Unclassified Properties
| Density, g/cm3 | 16 | |
| 8.7 |
| Embodied Carbon, kg CO2/kg material | 24 | |
| 4.9 |
| Embodied Energy, MJ/kg | 360 | |
| 73 |
| Embodied Water, L/kg | 150 | |
| 72 |
Common Calculations
| Stiffness to Weight: Axial, points | 9.6 | |
| 13 |
| Stiffness to Weight: Bending, points | 14 | |
| 22 |
| Strength to Weight: Axial, points | 14 | |
| 22 to 61 |
| Strength to Weight: Bending, points | 12 | |
| 20 to 39 |
| Thermal Diffusivity, mm2/s | 15 | |
| 8.2 |
| Thermal Shock Resistance, points | 46 | |
| 22 to 60 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0.3 to 0.4 |
| Chromium (Cr), % | 0 | |
| 1.8 to 3.8 |
| Copper (Cu), % | 0 | |
| 0 to 0.25 |
| Iron (Fe), % | 0 | |
| 82.2 to 87.4 |
| Manganese (Mn), % | 0 | |
| 0.15 to 0.4 |
| Nickel (Ni), % | 0 | |
| 0 to 0.3 |
| Phosphorus (P), % | 0 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 | |
| 0.15 to 0.4 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tungsten (W), % | 97 | |
| 10 to 11.8 |
| Vanadium (V), % | 0 | |
| 0.25 to 0.5 |
| Residuals, % | 3.0 | |
| 0 |