Common Name
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

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.


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