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Reply (2): No. Footnote 31 indicates that safety devices need not be provided by the vesselManufacturer, but overpressure protection shall be provided prior to placing the vessel in service.Applicable jurisdictional requirements should be reviewed to determine limitations which may bedifferent or more restrictive than the Code rules referenced in Question (1).
Interpretation: VIII-78-130Subject: Section VIII, Division 1, UG-10Date Issued: October 10, 1978File: BC78-574
Question: Is it permissible to use carbon steel pipe for pressure parts on a Section VIII, Division 1pressure Vessel under the following conditions:
(1) the pipe is ordered to SA-53 Grade B specifications;(2) the Material Test Report for the pipe indicates that it complies with both API 5L and ASTMA-53 Grade B specifications;(3) the markings on the pipe itself are in accordance with API 5L specifications only?
Reply: Yes, provided the pipe is not manufactured with filler metal added and UG-10 iscomplied with.
Interpretation: VIII-78-131Subject: Section VIII, Division 1, UG-84, UHA-5 1, and UHT-6Date Issued: October 12, 1978File: BC78-578
Question: Are the following assumptions correct with regard to the requirements for qualifying awelding procedure for Type 304 stainless steel where the design of the vessel is below -20°F but notlower than -325°F?
(1) Impact test shall be made with the notch in the weld metal. The heat affected zone need notbe checked.
(2) Acceptance criterion is 0.015 in. minimum lateral expansion. Measured values shall berecorded.
(3) Energy absorption values (ft-lbs or joules) may be recorded for "information," but that is notmandatory requirement.
(4) Filler metal shall be the same E-Number that will be used in production, such as,measurement of lateral expansion of an E309 (less than 0.10% C) deposit would not qualify for an E308deposit.
Reply: The following answers are in the numerical order described in the question.(1) Correct. See UHA-51(b)(5) and UG-84.(2) Correct. See UG-84(c)(4)(b) and UHT-6.(3) Correct.(4) Incorrect. E309 and E308 are both of A-No. 8 Weld Metal Analysis per QW-441 of SectionIX. See UHA-51(b)(5)(a)(1).
Interpretation: VIII-78-132