Common Name
TIMETAL 21S (Trademark of TIMET, USA)
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

% Maximum unless given as a range.

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.