UG-116 Required Marking
UG-116 Required Marking
(OP)
Hi Everybody,
If any vessel it has Category A, B, C welds as illustrated in Fig. UW-3.
With customer approval RT requirements as described in UW-11 satisfied by Automatic Ultrasonic Test (AUT) Method according to Code Case 2235-6.
But, some of the nozzle exceeding either NPS 10 or 1 1/8 (29 mm)wall thickness (which are require radiography for their full length) couldn't be made Automatic Ultrasonic Test because of in some weld seems its not applicable to make AUT. For that reason this nozzle welding has radiographically examined.
According to Code Case 2235-6 it has to be stamped ''UT''. But some of the weld seems RT examined.
and
in UG-116 (e)(4) states that nameplate should be marked ''RT 4''when only part of the vessel satisfied the radiographic requirements of UW11(a)or where none of the markings ''RT1'',''RT2'' or ''RT3'' are applicable
Q1)How ASME nameplate has to be marked(for NDT) only UT or UT-RT4
Q2)on U1-A Form how this situation has to be mentioned.
Regards
If any vessel it has Category A, B, C welds as illustrated in Fig. UW-3.
With customer approval RT requirements as described in UW-11 satisfied by Automatic Ultrasonic Test (AUT) Method according to Code Case 2235-6.
But, some of the nozzle exceeding either NPS 10 or 1 1/8 (29 mm)wall thickness (which are require radiography for their full length) couldn't be made Automatic Ultrasonic Test because of in some weld seems its not applicable to make AUT. For that reason this nozzle welding has radiographically examined.
According to Code Case 2235-6 it has to be stamped ''UT''. But some of the weld seems RT examined.
and
in UG-116 (e)(4) states that nameplate should be marked ''RT 4''when only part of the vessel satisfied the radiographic requirements of UW11(a)or where none of the markings ''RT1'',''RT2'' or ''RT3'' are applicable
Q1)How ASME nameplate has to be marked(for NDT) only UT or UT-RT4
Q2)on U1-A Form how this situation has to be mentioned.
Regards





RE: UG-116 Required Marking
Steve Braune
Tank Industry Consultants
www.tankindustry.com
RE: UG-116 Required Marking
RE: UG-116 Required Marking
of course we have discussed this issue with our AI. I just want to know opinions here(especially yours..)
my personal opinion is that,
the first necessity according to ASME satisfiying the requirements of UW-11, as an alternative for RT1 requirements we have used UT so ve have to only stamp as UT and on the MDR in remarks section which it has to be stated which nozzle welding radiographed.
RE: UG-116 Required Marking
I would mark the nameplate as RT 4 and UT, not RT4-UT under the code symbol stamp. You will need to be descriptive on the data report to describe the extent of the UT examination of the vessel welds, per category. I would also describe which vessel welds were subjected to RT on the data report.
Make sure your AI agrees with this approach.
RE: UG-116 Required Marking
In this situation by using Code Case 2235-6, UW11(a) requirements alternatively have met and RT1 applicable(but as an altenative way to satisfying RT1 requirements UT used)
In UG-116 (c)some lettering required on the nameplate listed and separation of this lettering from the others by a hyphen. Actually I havent seen anywhere in the code multi-lettering how to be written. On the marking area below the ASME stamp ''and'' may cause misunderstanding.
RE: UG-116 Required Marking
It has to be speciffically stated in the Mfr's Data Rpt
Some Mfrs actually stamp the Code Case on the nameplate,
under the UT lettering!
GBlr