Class 2 Tungsten vs. SAE-AISI A9 Steel
Class 2 tungsten belongs to the otherwise unclassified metals classification, while SAE-AISI A9 steel belongs to the iron alloys. There are 20 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 2 tungsten and the bottom bar is SAE-AISI A9 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 260 | |
| 190 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 100 | |
| 74 |
| Tensile Strength: Ultimate (UTS), MPa | 860 | |
| 770 to 2030 |
Thermal Properties
| Latent Heat of Fusion, J/g | 160 | |
| 280 |
| Specific Heat Capacity, J/kg-K | 120 | |
| 470 |
| Thermal Conductivity, W/m-K | 20 | |
| 35 |
| Thermal Expansion, µm/m-K | 4.6 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 13 | |
| 7.9 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 7.8 | |
| 9.2 |
Otherwise Unclassified Properties
| Density, g/cm3 | 15 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 23 | |
| 4.7 |
| Embodied Energy, MJ/kg | 350 | |
| 70 |
| Embodied Water, L/kg | 140 | |
| 82 |
Common Calculations
| Stiffness to Weight: Axial, points | 9.6 | |
| 14 |
| Stiffness to Weight: Bending, points | 14 | |
| 25 |
| Strength to Weight: Axial, points | 16 | |
| 28 to 73 |
| Strength to Weight: Bending, points | 13 | |
| 24 to 46 |
| Thermal Diffusivity, mm2/s | 11 | |
| 9.6 |
| Thermal Shock Resistance, points | 52 | |
| 25 to 66 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0.45 to 0.55 |
| Chromium (Cr), % | 0 | |
| 4.8 to 5.5 |
| Copper (Cu), % | 0 | |
| 0 to 0.25 |
| Iron (Fe), % | 0 | |
| 87 to 90.5 |
| Manganese (Mn), % | 0 | |
| 0 to 0.5 |
| Molybdenum (Mo), % | 0 | |
| 1.3 to 1.8 |
| Nickel (Ni), % | 0 | |
| 1.3 to 1.8 |
| Phosphorus (P), % | 0 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 | |
| 1.0 to 1.2 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tungsten (W), % | 92.5 | |
| 0 |
| Vanadium (V), % | 0 | |
| 0.8 to 1.4 |
| Residuals, % | 7.5 | |
| 0 |