TIMETAL 21S
| Common Name | |
|---|---|
| TIMETAL 21S (Trademark of TIMET, USA) | |
| Ti-15Mo-3Nb-3Al-.2Si | |
| UNS | |
| – | |
| General Information | |
| TIMETAL 21S is a meta-stable beta titanium alloy that offers substantial weight reductions over other engineering materials. It offers the high specific strength and good cold formability of a meta-stable beta alloy, but has been specifically designed for improved oxidation resistance, elevated temperature strength, creep resistance, and thermal stability. | |
| Common Specification | |
| Specification | Product Form |
| ASTM B265 | Sheet, Strip and Plate |
| ASTM B348 | Bar and Billet |
| ASTM B363 | Fittings |
| ASTM B381 | Forgings |
| ASTM B861 | Seamless Pipe |
| ASTM B862 | Welded Pipe |
| ASTM B863 | Wire |
| ASME SB-265 | Sheet, Strip and Plate |
| ASME SB-348 | Bar and Billet |
| ASME SB-363 | Fittings |
| Chemistry Requirements | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| N | C | H | Fe | O | Si | Mo | Nb | Al | Residuals Each Max | Residuals Max.Total | Ti |
| 0.05 | 0.1 | 0.015 | 0.4 | 0.17 | 0.15-0.25 | 14.0-16.0 | 2.4-3.2 | 2.5-3.5 | 0.1 | 0.1 | Balance |
| Minimum Tensile Properties | ||||
|---|---|---|---|---|
| Condition | UTS ksi (Mpa) | >0.2%YS ksi (MPA) | % El. | % RA* |
| Solution Treated | 130 (896) | 120 (827) | 8 | – |
*ASTM B-265 minimums
| Typical Tensile Properties | ||||
|---|---|---|---|---|
| Condition | UTS ksi (Mpa) | >0.2%YS ksi (MPA) | % El. | % RA* |
| Solution Treated + Age | 150 (1034) | 140 (965) | 6 min | – |
Note: Typical properties are not to be utilized as a requirement, but are only listed for guidance. These properties may or may not be attainable in all circumstances.
* %Ra not required by all specifications
Trademark Notice: Some names are trade names and/or trademarks of specific manufacturers. Titan Singapore is not affiliated with any manufacturer(s). Orders will be filled to meet specifications from any available source(s). Names are listed solely for reference to help identify products consistent with listed specifications.