Titanium 3.0AL 2.5V AMS Number Alloy Type UNS Cross Ref. Spec Misc./Shape AMS 4943 3.0AL 2.5V Titanium R56320 - Tubing AMS 4944 3.0AL 2.5V Titanium R56320 - Tubing AMS 4945 3.0AL 2.5V Titanium R56320 - Tubing