Grade 704C Zirconium vs. Class 1 Tungsten
Both grade 704C zirconium and class 1 tungsten are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. There are 20 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 grade 704C zirconium and the bottom bar is class 1 tungsten.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 97 | |
| 250 |
| Elongation at Break, % | 11 | |
| 5.7 |
| Poisson's Ratio | 0.34 | |
| 0.29 |
| Shear Modulus, GPa | 36 | |
| 98 |
| Tensile Strength: Ultimate (UTS), MPa | 470 | |
| 860 |
| Tensile Strength: Yield (Proof), MPa | 310 | |
| 580 |
Thermal Properties
| Latent Heat of Fusion, J/g | 240 | |
| 160 |
| Specific Heat Capacity, J/kg-K | 270 | |
| 120 |
| Thermal Conductivity, W/m-K | 21 | |
| 21 |
| Thermal Expansion, µm/m-K | 5.9 | |
| 5.1 |
Otherwise Unclassified Properties
| Density, g/cm3 | 6.7 | |
| 15 |
| Embodied Water, L/kg | 460 | |
| 140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 48 | |
| 44 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 490 | |
| 660 |
| Stiffness to Weight: Axial, points | 8.1 | |
| 9.6 |
| Stiffness to Weight: Bending, points | 23 | |
| 14 |
| Strength to Weight: Axial, points | 20 | |
| 16 |
| Strength to Weight: Bending, points | 20 | |
| 14 |
| Thermal Diffusivity, mm2/s | 12 | |
| 12 |
| Thermal Shock Resistance, points | 58 | |
| 48 |
Alloy Composition
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| Carbon (C), % | 0 to 0.1 | |
| 0 |
| Hafnium (Hf), % | 0 to 4.5 | |
| 0 |
| Hydrogen (H), % | 0 to 0.0050 | |
| 0 |
| Iron (Fe), % | 0 to 0.3 | |
| 0 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.3 | |
| 0 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 |
| Tin (Sn), % | 1.0 to 2.0 | |
| 0 |
| Tungsten (W), % | 0 | |
| 90 |
| Zirconium (Zr), % | 92.9 to 99 | |
| 0 |
| Residuals, % | 0 | |
| 10 |