Grade 28 Titanium vs. ZA-8
Grade 28 titanium belongs to the titanium alloys classification, while ZA-8 belongs to the zinc alloys. There are 30 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is grade 28 titanium and the bottom bar is ZA-8.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 85 to 86 |
| Elongation at Break, % | 11 to 17 | |
| 1.3 to 8.0 |
| Fatigue Strength, MPa | 330 to 480 | |
| 51 to 100 |
| Poisson's Ratio | 0.32 | |
| 0.26 |
| Shear Modulus, GPa | 40 | |
| 34 |
| Shear Strength, MPa | 420 to 590 | |
| 240 to 280 |
| Tensile Strength: Ultimate (UTS), MPa | 690 to 980 | |
| 210 to 370 |
| Tensile Strength: Yield (Proof), MPa | 540 to 810 | |
| 210 to 290 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 110 |
| Maximum Temperature: Mechanical, °C | 330 | |
| 100 |
| Melting Completion (Liquidus), °C | 1640 | |
| 400 |
| Melting Onset (Solidus), °C | 1590 | |
| 380 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 440 |
| Thermal Conductivity, W/m-K | 8.3 | |
| 120 |
| Thermal Expansion, µm/m-K | 9.9 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.3 | |
| 28 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 40 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 36 | |
| 11 |
| Density, g/cm3 | 4.5 | |
| 6.3 |
| Embodied Carbon, kg CO2/kg material | 37 | |
| 3.3 |
| Embodied Energy, MJ/kg | 600 | |
| 62 |
| Embodied Water, L/kg | 370 | |
| 420 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 87 to 110 | |
| 2.8 to 28 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1370 to 3100 | |
| 260 to 490 |
| Stiffness to Weight: Axial, points | 13 | |
| 7.5 |
| Stiffness to Weight: Bending, points | 35 | |
| 23 |
| Strength to Weight: Axial, points | 43 to 61 | |
| 9.3 to 17 |
| Strength to Weight: Bending, points | 39 to 49 | |
| 12 to 18 |
| Thermal Diffusivity, mm2/s | 3.4 | |
| 42 |
| Thermal Shock Resistance, points | 47 to 66 | |
| 7.6 to 13 |
Alloy Composition
| Aluminum (Al), % | 2.5 to 3.5 | |
| 8.0 to 8.8 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.0060 |
| Carbon (C), % | 0 to 0.080 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0.8 to 1.3 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.25 | |
| 0 to 0.075 |
| Lead (Pb), % | 0 | |
| 0 to 0.0060 |
| Magnesium (Mg), % | 0 | |
| 0.015 to 0.030 |
| Nickel (Ni), % | 0 | |
| 0 to 0.020 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.15 | |
| 0 |
| Ruthenium (Ru), % | 0.080 to 0.14 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0 to 0.045 |
| Tin (Sn), % | 0 | |
| 0 to 0.0030 |
| Titanium (Ti), % | 92.4 to 95.4 | |
| 0 |
| Vanadium (V), % | 2.0 to 3.0 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 89.7 to 91.2 |
| Residuals, % | 0 to 0.4 | |
| 0 |