Use of titanium grade 4 for pressure vessel applications
Use of titanium grade 4 for pressure vessel applications
(OP)
Use of Titanium Grade 4 (UNS R50700) is not permitted for use in PV applications per ASME VIII-1 as it is not included on Table UNF 23.4
Any idea why? Any code cases available that permit its use at all?
I have looked at a lot of places and just cannot figure out the reason it is excluded and I seek your help.
Thanks!
Any idea why? Any code cases available that permit its use at all?
I have looked at a lot of places and just cannot figure out the reason it is excluded and I seek your help.
Thanks!





RE: Use of titanium grade 4 for pressure vessel applications
If you need strength look at Gr9.
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Plymouth Tube
RE: Use of titanium grade 4 for pressure vessel applications
RE: Use of titanium grade 4 for pressure vessel applications
forming problems
low ductility
embrittlement
weldability
lack of use or interest
RE: Use of titanium grade 4 for pressure vessel applications
Weldability and forming are also issues.
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Plymouth Tube
RE: Use of titanium grade 4 for pressure vessel applications
It seems I will need to look at alternatives to using gr 4.
RE: Use of titanium grade 4 for pressure vessel applications
See also Code Case 2497 that permits some titanium alloys, it may help you in alternatives.
Nasir
Welding Engineer
DESCON ENGINEERING LIMITED
PAKISTAN
RE: Use of titanium grade 4 for pressure vessel applications