ASME B31.1 & Section I material identification
ASME B31.1 & Section I material identification
(OP)
Is there a requirement for Pipe spec markings and heat numbers to be transferred before cutting a pipe into pieces to ensure identification and traceability of every piece in the above ASME Codes for Code work? ASME Section I PG-77 only refers to plate identification. If there is please give the applicable section in these Codes.





RE: ASME B31.1 & Section I material identification
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RE: ASME B31.1 & Section I material identification
Patricia Lougheed
******
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RE: ASME B31.1 & Section I material identification
Also read NCA-3856.2 and NCA-3856.3
Lee
RE: ASME B31.1 & Section I material identification
some pipes are too thin to stamp on
RE: ASME B31.1 & Section I material identification
whether sect VIII, Sect I, Sect IV,
RE: ASME B31.1 & Section I material identification
If the material specification does not require marking, UG-93(a)(3) applies, which requires an equivalent system be described in the Manufacturer's QC Manual "such that the Inspector can determine that it is the material identified in (a)(3)(a) above."
UG-93(a)(4) gives additional guidance on piping/tubing that isn't long enough to adequately mark (color coding, etc.).
RE: ASME B31.1 & Section I material identification
RE: ASME B31.1 & Section I material identification
RE: ASME B31.1 & Section I material identification
that is totally incorrect.
If you must have an MTR then rhe heat is there and it may be the only way to trace the pipe to the original nfr/mill.
Heat traceability is a common practice specially for pipe >1.1/2" NPS
RE: ASME B31.1 & Section I material identification
Whereas we have assembled and Stamped over a hundred power boiler during the past 14 years, permit me to disagree. While MTR's are obtained for all received pressure piping, transfer of heat marking to all cut pieces and/or heat mapping is not required.
RE: ASME B31.1 & Section I material identification
not tracing the materials/pipe is a code Violation.
I would like other opinions here. look that everyone is quite.
Do we have an inspector here to interpret the Code?
From a code requirement point of view.
I am required not only by my QC manual but it is there because the review team required it way before audit because if found the QC Manual does not address it, I will loose points. I had a 100% pass on the last review.
If you know Mr. J. Lockhart then you know what I am talking about.
I tell you what? I will put an interpretation to all reference Committees.
RE: ASME B31.1 & Section I material identification
ASME Code paragraph PG-77 specifically discusses plate materials. However, because coded marking systems are widely adopted within the ASME Codes as an alternative to the full identification marking transfer (such as that defined in paragraph PG-77.2 for plate materials), traceability to the complete identification markings is required by general Code paragraph PG-5.
The Manufacturer who orders pipe material for a Code application is responsible for a material control system that ensures that the proper material is used in Code construction. The material control system provides methods acceptable to the Authorized Inspector for assuring that only the intended material is used in Code construction. The Manufacturer's certification, properly countersigned by the Authorized Inspector, may be accepted as sufficient evidence of Code compliance
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RE: ASME B31.1 & Section I material identification
warning: some AI will not give you the green light unless convinced that the effect and record keeping is good.
Most AI would like the Heat No. on the pipe and plates so their job gets easier.
CMTR's are still a requirement.