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Grade 2 vs Grade 9 Titanium Seamless Tube
2026-08-11
Grade 2 and Grade 9 tubes can look alike, but their alloy systems and mechanical-property priorities differ. Selection should start with the controlling product specification and component design.
Material Comparison
| Item | Grade 2 | Grade 9 |
|---|---|---|
| UNS | R50400 | R56320 |
| Family | Commercially pure titanium | Ti-3Al-2.5V alpha-beta alloy |
| Selection priority | Corrosion resistance and formability | Higher strength with useful cold-work capability |
| Condition | Commonly annealed | May be annealed, cold-worked and stress-relieved, or another condition permitted by the invoked specification |
Specify Tube or Pipe Correctly
ASTM B338 and ASTM B861 have different scopes. State the required standard and revision, OD or NPS, wall or schedule, length, condition and tests rather than ordering by grade alone.
Compare Grade 2 Seamless Tube and Grade 9 Seamless Tube.
Related Reading
Grade 9 Titanium Seamless Tube Applications and Selection · How to Specify a Prefabricated Titanium Pipe Spool · Titanium Pipe Spool vs Loose Pipe, Fittings and Flanges · Titanium Pipe Spools for Chemical, Marine and Desalination Systems