SAE Standards Works
AMS G Titanium and Refractory Metals Committee
AMS4945F - Titanium Alloy Tubing, Seamless, Hydraulic, 3Al - 2.5V, Controlled Contractile Strain Ratio, Cold Worked, Stress Relieved
Not available for purchase at this time.
Robert C. Schreiber
Titanium Alloy Tubing, Seamless, Hydraulic, 3Al - 2.5V, Controlled Contractile Strain Ratio, Cold Worked, Stress Relieved
This specification covers a titanium alloy in the form of seamless tubing.
The specification is being revised to reduce the allowable hydrogen level to 50ppm (based on Boeing data which has shown hydrogen embrittlement failures in Ti-3Al-2.5V at levels below 75ppm), to require use of vacuum/inert gas furnaces for heat treatment operations to achieve this H level (these furnace types are used by all tubing fabricators), and to reduce flarability sampling (data indicates no flarability failures in tens of thousands of tests).