Technical Data
Ti-15Mo-3Nb-3Al-0.2Si (Beta 21-S)
Beta 21-S combines the excellent cold formability and high heat treatability of conventional meta stable beta alloys with improved oxidation and creep resistance. Used in engine applications such as exhaust nozzles.
|
Chemistry Limits (%) |
|
| Mo | 14 - 16 |
| Nb | 2.4 - 3.2 |
| Al | 2.5 - 3.5 |
| Si | 0.15 - 0.25 |
| O2 | 0.11 - 0.17 |
| Fe Max | 0.4 |
| H2 Max | 0.015 |
| C Max | 0.05 |
| N2 Max | 0.05 |
Mechanical Properties |
|
| Typical | Solution Treated and Aged (STA) |
| Ultimate Tensile Strength - ksi | 190 |
| Yield Strength - ksi | 175 |
| Elongation % | 8 |
|
Physical Properties |
|
| Density (lbs/in3) | 0.178 |
| Elastic Modulus (x106 psi) | 15 - 16 |
| Beta Transus Temp (oF) | 1470 |