HSB Global Standards - steeltank.com Vessels/Fall 2011... · · 2011-09-26cylindrical or conical shells, ... Section VIII -1 • UG-32(b) ... head thickness by dividing the head
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• UG-11(d)– Mfr. must assure that parts furnished under the provisions of UG-11(a), (b)
and (c) meet all applicable Code requirements such as UCS-79(d), UCS-85, UNF-79(a)(1), UHA-44(a) & UHT-79(a)(1)
– Further tightening of miscellaneous parts rules• UG-36(b)(1), Appendix 1, 1-10
– Revision made consistent with following Interpretation:
Question: When Appendix 1-10 is used in lieu of Appendix 1-7, as allowed by paragraph UG-36(b)(1) for large openings in cylindrical or conical shells, is it the intent that the area replacement requirements of paragraph UG-37 also be satisfied?
Significant Revisions in 2010 EditionSection VIII-1
• UG-45 – Simplification of Rules– Nozzle neck sizing rules of UG-45 are often misinterpreted– New rules modeled after those published in VIII-2– Simpler presentation however requires an understanding of min/max
rules.– Min. Thickness of standard wall pipe now acquired from Table,
Significant Revisions in 2010 EditionSection VIII-1
• UW-2(c) – Use of ERW Pipe as the Shell in an Unfired Steam Boiler– Current rules require all joints of Category A to be fully radiographed.– Code considers ERW pipe to have a Category A joint– Revision makes rules consistent with Section I (PG-9.5 & Part PEB)
and the use of ERW pipe material– ERW pipe may be used as the shell of a unfired steam boiler
• t < ½ in.• Diameter shall not exceed 24 inches ( DN 600)• ERW weld shall be completed using high-frequency induction (HFI)
• 2011 Publication– The current plan is that ASME will be publishing complete reprints
(white pages) for all B&PV Code books– Some books will be published with their old software and some with
new software (xml)– Even though it is a complete reprint, it is considered an Addenda
• On Data Reports, “2010 Edition” and “2011 Addenda” would be listed.
• Next publication will be the 2013 Edition– No Addenda– Code Cases will still be published quarterly– Errata will be published on ASME website as soon as approved– “Special Safety Notices” may be published on website
• Code Symbol Stamp– phasing out separate stamps (such as the U) for each Code – moving to a single mark for all codes– new term: "Certification Designator “or “Designator“ defines the area
in which the Certificate Holder is certified by ASME– For example, for VIII-1, "U" , "UV" or "UD“ marked on the nameplate
directly under the Certification Mark – Non-nuclear Code Case for 18 month transition
• Code Construction at Location Other than that Listed on Certificate– Certificate Holder may request ASME to authorize code construction at
another location• Intended for situations where Cert. Holder needs additional production
space to handle overflow work, or perhaps access to a larger crane– Cert. Holder would apply to ASME requesting permission to fabricate at
additional location (temporary shop)– ASME would request AIA to audit Temporary Shop and verify that it is
suitable for intended construction activity– Following receipt of the AIA’s audit report, ASME may issue a Letter
authorizing temporary use of a new shop location for a period of not longer than one year or to the time the Certificate Holder’s Certificate will expire
• Temporary Shop Used by Certificate Holders (cont.)– ASME accepts AIA audit report and $1,305 fee– ASME will issue to the Certificate Holder a Letter– Upon expiration of the letter, further extension to allow the temporary
shop to continue operation will require a full ASME review prior to the expiration of the authorization
– No more than one temporary use Letter issued to a Certificate Holder at any one time and no more than two temporary use letters issued during a three year period
• Temporary Shop Used by Certificate Holders (cont.)– If two temporary use letters are issued during the three year period
they must be for different temporary shop locations (i.e., during the three year period a temporary shop address would be eligible for only (1) one-year temporary use letter).
– AIS must indicate in their report how the Certificate Holder’s assigned AI/AIS will perform inspections at the temporary Code shop, when the “temporary Code shop” is located a distance greater than 200 miles from the Code shop
• Temporary Shop Used by Certificate Holders (cont.)– The address, Certificate Number and expiration date of the
Manufacturer to be listed on the Data Report would be that of the Certificate of Authorization, not the temporary location.
• The Temporary Location Letter expiration date could (but is not required to) be listed in the Remarks.
– This new policy does not affect work done at a temporary, intermediate field site location, where the “intermediate” part of that statement means a ship dock, rail yard, etc. where pieces of the pressure vessel are further assembled before being shipped to the final location.
• Data Reports– All (nuclear and non-nuclear) data reports revised – Established consistent National Board certification wording– Current: AI may only use National Board Commission Number and
endorsement when the vessel or part would be registered with the National Board.
– Revision: also required when the vessel will not be registered –required per NB-263
Significant Revisions in 2011 AddendaSection VIII-1
• UG-32(b) – head design for internal pressure– UG-32(b) required increasing an unstayed ellipsoidal or torispherical
head thickness by dividing the head thickness by the joint efficiency of the Category B or C weld joining the head to the shell
– With the changes to UW-11(a)(5)(b) and UW-12(d) in the 1987/88 Addenda requiring spot radiography of Category B or C butt welds joining the head to the shell, there is no technical basis for the UG-32(b) requirement
Significant Revisions in 2011 AddendaSection VIII-1
• UG-93 and App 3 – material documentation– UG-93(a)(1): expanded documentation requirements for plate material– App 3: revised definition of “certificate of compliance”, “material”, “material
supplier” and “Material Test Report”
• UG-99(b) and UG-102(a) – pressure tests– prohibit the use of valves between vessel and pressure gage– require adjustment of test pressure accounting for elevation differences
between chamber and pressure gauge
• UG-99(f) – Vacuum Service Vessels– Revised pressure testing requirements for pressure vessels designed only
Significant Revisions in 2011 AddendaSection VIII-1
• UG-125(a) – pressure relief devices for unfired steam boilers– required to meet UG-125 through UG-138– When incorporating Code Case 2211 (“Overpressure by System
Design“), inadvertently excluded pressure relief devices for unfired steam boilers
• UW-11(a) rewrite – full RT requirements– Changed “vessels” & “vessel sections or heads” to “the shell and
heads of vessels” so that all terms will be the same – Separated full radiography requirements for nozzles and
Significant Revisions in 2011 AddendaSection VIII-1
• Appendix 35 – Mass Produced Vessels– clarify the involvement between Inspector and AIA of record– For the inspection and quality control procedure and Quality Control
System, the Manufacturer shall submit to:• the AIA of record, legal jurisdiction, ASME Designee
– The Manufacturer shall follow the same procedure when revising the inspection and quality control procedure.
• New Mandatory Appendix – Diffusion Bonding– Incorporates Code Case 2621-1
• New Mandatory Appendix - electric immersion heater element support plates– Based on Part UHX for U-tubes
• Diffusion Welding– Added as a new welding process– QW-185 paragraphs added– QW-26X – new table of variables– QW-4XX – new variables added– QW-386 – new welding operator requirements– QW/QB-492 – new definition added
• QW-161.1 – Specimens– Allow multiple specimens to be taken across the weld– The entire weld and heat affected zones are tested
• QW-300.3 – Simultaneous welder performance qualifications conducted by multiple contractors– With a single WPS, each participating contractor must have a PQR
supporting the essential variables of the WPS– However, for an AWS SWPS qualified by demonstration does not have
a PQR – inconsistent– Literal interpretation of the Code: the contractor would be excluded
from participation in simultaneous performance qualifications – if no PQR
– A SWPS adopted under the provisions of Article V is acceptable to support simultaneous performance qualifications provided the qualified range of essential variables in the SWPS agrees with those of the single WPS
• Definition of machine welding – revised:– welding, machine: welding with equipment that has controls that are
manually adjusted can be adjusted by the welding operator, or adjusted under the welding operator’s direction, in response to visual observation of the welding, changes in the welding conditions. The torch, gun, or electrode holder is held by a mechanical device. See also welding, automatic.
– adjustments can be made by other methods, e.g., electronic– there are other means, e.g., sound, meters, etc., by which the
operator may recognize the need to make adjustments
Subject: QW-100.3 and QW-420.1Date Issued: November 12, 2009File: 09-490Background: A later edition/addenda of Section IX assigns a P-number different
from that assigned by the edition/addenda of Section IX that was in effect at the time of qualification.
Question (1): Is it required that the WPS be revised or a new WPS be written to identify the new P-number when the applicable code edition/addenda lists the material under the new P-number?
Reply (1): Yes.
Question (2): Is it required that the WPS be revised or a new WPS be written to identify the new P-number when the applicable code edition/addenda lists the material under the old P-number?
Background: A later edition/addenda of Section IX assigns an F-number different from that assigned by the edition/addenda of Section IX that was in effect at the time of qualification.
Question (6): Is it required that the WPS or PQR be amended to reflect the new filler metal F-No. assignment?
Reply (6): No.
Question (7): May the WPS or PQR be amended to reflect the new filler metal F-No. assignment?