UG-93(d)(4)
UG-93(d)(4)
(OP)
Gas Cooler that constructed under provision of Appendix-13 with corner joint according to Fig UW-13.2 sketch (k). Shall I performed NDE (PT/MT) for weld joint preparation before welding this corner joint? If not perform NDE (before welding), is this comply with UG-93(d)(4)





RE: UG-93(d)(4)
Before, in accordance with Manufacturer's specified duties described in UG-90(b)(6) of VIII-1
(6) examination of all materials before fabrication to
make certain they have the required thickness, to detect
defects [UG-93(d)], to make certain the materials are permitted
by this Division (UG-4), and that traceability
(UG-77) to the material identification (UG-93) has been
maintained;
Also see interpretation VIII-82-47 (Question 2)which specifies Authorized Inspector acceptance:
Question (2): If the Manufacturer satisfies his Authorized Inspector that
examinations of materials for the detection of unacceptable defects are
made during fabrication at a time or stage when they are meaningful,
instead of "before fabrication," have the requirements of UG-90(b)(6) and
UG-93(d) with regard to "before fabrication" been met?
Reply (2): Yes.
RE: UG-93(d)(4)
Plug sheet and top plate was joining according to Figure UW-13.2 Sketch (a), both of them were made from cut edge plate without forged or rolling, Does this joint shall be inspected per UG-93(d)(3)?
RE: UG-93(d)(4)