Class 4 Tungsten vs. 7175 Aluminum
Class 4 tungsten belongs to the otherwise unclassified metals classification, while 7175 aluminum belongs to the aluminum alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, 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 7175 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 270 | |
| 70 |
| Elongation at Break, % | 2.3 | |
| 3.8 to 5.9 |
| Poisson's Ratio | 0.28 | |
| 0.32 |
| Shear Modulus, GPa | 110 | |
| 26 |
| Tensile Strength: Ultimate (UTS), MPa | 790 | |
| 520 to 570 |
| Tensile Strength: Yield (Proof), MPa | 580 | |
| 430 to 490 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 380 |
| Specific Heat Capacity, J/kg-K | 130 | |
| 870 |
| Thermal Conductivity, W/m-K | 30 | |
| 140 |
| Thermal Expansion, µm/m-K | 4.5 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 17 | |
| 33 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 9.7 | |
| 99 |
Otherwise Unclassified Properties
| Density, g/cm3 | 16 | |
| 3.0 |
| Embodied Carbon, kg CO2/kg material | 24 | |
| 8.2 |
| Embodied Energy, MJ/kg | 360 | |
| 150 |
| Embodied Water, L/kg | 150 | |
| 1130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 16 | |
| 18 to 29 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 620 | |
| 1310 to 1730 |
| Stiffness to Weight: Axial, points | 9.6 | |
| 13 |
| Stiffness to Weight: Bending, points | 14 | |
| 46 |
| Strength to Weight: Axial, points | 14 | |
| 48 to 52 |
| Strength to Weight: Bending, points | 12 | |
| 48 to 51 |
| Thermal Diffusivity, mm2/s | 15 | |
| 53 |
| Thermal Shock Resistance, points | 46 | |
| 23 to 25 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 88 to 91.4 |
| Chromium (Cr), % | 0 | |
| 0.18 to 0.28 |
| Copper (Cu), % | 0 | |
| 1.2 to 2.0 |
| Iron (Fe), % | 0 | |
| 0 to 0.2 |
| Magnesium (Mg), % | 0 | |
| 2.1 to 2.9 |
| Manganese (Mn), % | 0 | |
| 0 to 0.1 |
| Silicon (Si), % | 0 | |
| 0 to 0.15 |
| Titanium (Ti), % | 0 | |
| 0 to 0.1 |
| Tungsten (W), % | 97 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 5.1 to 6.1 |
| Residuals, % | 3.0 | |
| 0 to 0.15 |