TI-6AL-6V-2SN
| Common Name | |
|---|---|
| Ti-6Al-6V-2Sn | |
| Ti-6-6-2 | |
| UNS | |
| R56620 | |
| General Information | |
| Ti-6Al-6V-2Sn alloy is used for forgings and extrusions requiring greater strength than Ti-6Al-4V. Typical uses include rocket engine cases, airframe applications, as well as fasteners. Fracture toughness and fatigue resistance are lower than Ti-6Al-4V. This alpha-beta alloy is available in bar, billet, extrusions, plate, sheet, and wire. | |
| Common Specification | |
| Specification | Product Form |
| AMS 4918 | Sheet-Annealed, Strip and Plate-Annealed |
| AMS 4936 | Extrusions, Annealed |
| AMS 4971 | Bar, Wire, Forgings, Ring-Annealed |
| AMS 4978 | Wire, Forgings, Ring-Annealed |
| AMS 4979 | Wire, Forgings, Ring-STA |
| MIL-T-9046 | Sheet, Strip and Plate |
| MIL-T-9047 | Bar, Re-forging |
| MIL-T-81556 | Extrusions |
| MIL-T-83142 | Forgings |
| Chemistry Requirements | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | C | H | Fe | O | Cu | Y | Al | V | Su | Residuals Each Max | Residuals Max.Total | Ti |
| 0.04 | 0.05 | 0.02 | 0.35-1.0 | 0.2 | 0.35-1.0 | 0.004 | 5.0-6.0 | 5.0-6.0 | 1.5-2.5 | 0.1 | 0.4 | Balance |
% Maximum unless given as a range.
| Minimum Tensile Properties | |||||
|---|---|---|---|---|---|
| Condition | UTS ksi (Mpa) | >0.2%YS ksi (MPA) | % El. | % RA* | Size |
| Forging | 175 (1206) | 160 (1103) | 8 | 20 | <1” |
| Annealed Forgings | 150 (1035) | 140 (965) | 10 | 20 | – |
| Condition | UTS ksi (Mpa) | >0.2%YS ksi (MPA) | % El. | % RA* | Size |
| Typical Tensile Properties | |||||
|---|---|---|---|---|---|
| Condition | UTS ksi (Mpa) | >0.2%YS ksi (MPA) | % El. | % RA* | Size |
| Bar, Forged | 160 (1103) | 150 (1034) | 15 | 40 | 1-2” |
| Casting | 160 (1103) | 140 (965) | 6 | 11 | – |
| Condition | UTS ksi (Mpa) | >0.2%YS ksi (MPA) | % El. | % RA* | Size |
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
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