UG-120 (c) 1

[dursosono]

Material shell and head of a pressure vessel was made from the same plate.
Since the manufacture could not perform head forming then that plate was formed in other company. Does that head (after forming) shall be furnished with partial data report?

 

[metengr]

dursosono;
How was it formed? Was it hot worked into shape with no welding or subsequent heat treatment?

 

[dursosono]

just formed, no welding, no heat treatment

 

[metengr]

As long as the Certificate Holders manual provides provisions for work performed by others under their control anf traceability of material, I don't see where a partial data report is necessary.

 

[jte]

Question (1): Is a Partial Data Report required, per UG-120(c), when a seamless head is supplied per the rules of UG-11(b)?

Reply (1): No.

Question (2): Is it permitted by the rules of Section VIII, Division 1 that a Manufacturer may obtain a Partial Data Report for seamless heads supplied by another Manufacturer, under the rules of UG-11(b)?

Reply (2): Yes, provided the Manufacturer of the head is in possession of a valid Certificate of Authorization.

I think Question 1 handles the situation you're asking about.

jt