Solution-treated Grade 19 Titanium vs. Solution-treated Grade 21 Titanium
Both solution-treated grade 19 titanium and solution-treated grade 21 titanium are titanium alloys. Both are furnished in the solution annealed (AT) condition. They have 82% of their average alloy composition in common.
For each property being compared, the top bar is solution-treated grade 19 titanium and the bottom bar is solution-treated grade 21 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 140 |
| Elongation at Break, % | 17 | |
| 17 |
| Fatigue Strength, MPa | 550 | |
| 550 |
| Poisson's Ratio | 0.32 | |
| 0.32 |
| Reduction in Area, % | 22 | |
| 22 |
| Shear Modulus, GPa | 47 | |
| 51 |
| Shear Strength, MPa | 550 | |
| 550 |
| Tensile Strength: Ultimate (UTS), MPa | 890 | |
| 890 |
| Tensile Strength: Yield (Proof), MPa | 870 | |
| 870 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 370 | |
| 310 |
| Melting Completion (Liquidus), °C | 1660 | |
| 1740 |
| Melting Onset (Solidus), °C | 1600 | |
| 1690 |
| Specific Heat Capacity, J/kg-K | 520 | |
| 500 |
| Thermal Conductivity, W/m-K | 6.2 | |
| 7.5 |
| Thermal Expansion, µm/m-K | 9.1 | |
| 7.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 45 | |
| 60 |
| Density, g/cm3 | 5.0 | |
| 5.4 |
| Embodied Carbon, kg CO2/kg material | 47 | |
| 32 |
| Embodied Energy, MJ/kg | 760 | |
| 490 |
| Embodied Water, L/kg | 230 | |
| 180 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 150 | |
| 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 3040 | |
| 2760 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 33 | |
| 32 |
| Strength to Weight: Axial, points | 49 | |
| 46 |
| Strength to Weight: Bending, points | 41 | |
| 38 |
| Thermal Diffusivity, mm2/s | 2.4 | |
| 2.8 |
| Thermal Shock Resistance, points | 57 | |
| 66 |
Alloy Composition
Deprecated: Automatic conversion of false to array is deprecated in /home/public/compare.php on line 452
| Aluminum (Al), % | 3.0 to 4.0 | |
| 2.5 to 3.5 |
| Carbon (C), % | 0 to 0.050 | |
| 0 to 0.050 |
| Chromium (Cr), % | 5.5 to 6.5 | |
| 0 |
| Hydrogen (H), % | 0 to 0.020 | |
| 0 to 0.015 |
| Iron (Fe), % | 0 to 0.3 | |
| 0 to 0.4 |
| Molybdenum (Mo), % | 3.5 to 4.5 | |
| 14 to 16 |
| Niobium (Nb), % | 0 | |
| 2.2 to 3.2 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 to 0.12 | |
| 0 to 0.17 |
| Silicon (Si), % | 0 | |
| 0.15 to 0.25 |
| Titanium (Ti), % | 71.1 to 77 | |
| 76 to 81.2 |
| Vanadium (V), % | 7.5 to 8.5 | |
| 0 |
| Zirconium (Zr), % | 3.5 to 4.5 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.4 |