U stamp vs ASME stamp 1

[faiswish]

Hi all,
I have seen UHT pressure vessel built in 2004 has U stamp on data plate and we are constructing new UHT vessel with ASME stamp on data plate what is the deffrance between U and ASME stamp?
Thank you!

 

[metengr]

ASME B&PV Code in the 2013 edition has decided to use the ASME symbol as the certification mark followed by designator below the mark. The designator can be the U symbol or other symbols depending on the code of construction.

 

[jte]

Most recently previously discussed in

http://www.eng-tips.com/viewthread.cfm?qid=364424

 

[faiswish]

Thank you jte, this is grate website.