Grade 18 Titanium vs. Z21721 Zinc
Grade 18 titanium belongs to the titanium alloys classification, while Z21721 zinc belongs to the zinc alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is grade 18 titanium and the bottom bar is Z21721 zinc.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 87 |
| Elongation at Break, % | 11 to 17 | |
| 40 |
| Poisson's Ratio | 0.32 | |
| 0.25 |
| Shear Modulus, GPa | 40 | |
| 35 |
| Tensile Strength: Ultimate (UTS), MPa | 690 to 980 | |
| 150 |
| Tensile Strength: Yield (Proof), MPa | 540 to 810 | |
| 120 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 110 |
| Maximum Temperature: Mechanical, °C | 330 | |
| 90 |
| Melting Completion (Liquidus), °C | 1640 | |
| 410 |
| Melting Onset (Solidus), °C | 1590 | |
| 390 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 390 |
| Thermal Conductivity, W/m-K | 8.3 | |
| 110 |
| Thermal Expansion, µm/m-K | 9.9 | |
| 26 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.3 | |
| 27 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 37 |
Otherwise Unclassified Properties
| Density, g/cm3 | 4.5 | |
| 6.6 |
| Embodied Carbon, kg CO2/kg material | 41 | |
| 2.8 |
| Embodied Energy, MJ/kg | 670 | |
| 53 |
| Embodied Water, L/kg | 270 | |
| 340 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 87 to 110 | |
| 57 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1380 to 3110 | |
| 88 |
| Stiffness to Weight: Axial, points | 13 | |
| 7.3 |
| Stiffness to Weight: Bending, points | 35 | |
| 22 |
| Strength to Weight: Axial, points | 43 to 61 | |
| 6.4 |
| Strength to Weight: Bending, points | 39 to 49 | |
| 9.6 |
| Thermal Diffusivity, mm2/s | 3.4 | |
| 44 |
| Thermal Shock Resistance, points | 47 to 67 | |
| 4.8 |
Alloy Composition
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| Aluminum (Al), % | 2.5 to 3.5 | |
| 0 to 0.0020 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.070 |
| Carbon (C), % | 0 to 0.080 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0 to 0.0050 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.25 | |
| 0 to 0.010 |
| Lead (Pb), % | 0 | |
| 0 to 1.0 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.15 | |
| 0 |
| Palladium (Pd), % | 0.040 to 0.080 | |
| 0 |
| Titanium (Ti), % | 92.5 to 95.5 | |
| 0 to 0.020 |
| Vanadium (V), % | 2.0 to 3.0 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 98.9 to 100 |
| Residuals, % | 0 to 0.4 | |
| 0 |