Attachment 7d1 - Haeberle - API 6A ASME Editions

Report
New Item
API Spec 6A: ASME Section V And Section IX
Reference Editions
Tim Haeberle
30 June 2011
Current Wording:
Section 2, Normative references
“The following referenced documents are indispensable for the
application of this document. For dated references, only the
edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments)
applies.”
This is not a problem
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The Problem
Current Wording:
Section 2, Normative references
“ASME Boiler and Pressure Vessel Code:2004 with 2005 and
2006 addenda, Section V, Nondestructive Examination
ASME Boiler and Pressure Vessel Code:2004 with 2005 and
2006 addenda, Section VIII, Division 1, Rules for Construction
of Pressure Vessels
ASME Boiler and Pressure Vessel Code:2004 with 2005 and
2006 addenda, Section VIII, Division 2, Alternative Rules
ASME Boiler and Pressure Vessel Code:2004 with 2005 and
2006 addenda, Section IX, Welding and Brazing Qualifications”
This is where the problem begins.
Only Section VIII should be a dated reference!
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History
• In 2009, the Design TG identified a need to use the 2004 Ed of ASME
Section VIII, Div 1 & Div 2 for API 6A, API 16A, & API 16C, rather than the
2007 Ed.
• ASME Section VIII 2007 permitted higher stress, but required Charpy Vnotch values that were deemed to be too high for the 75 K and 80 K steels.
• The recommendation from the Design TG was to use the 2004 Edition for
all of the referenced ASME Sections, rather than “cafeteria shop” and use
the design rules, but not the material quality control.
• However, this creates a problem for weld facilities and equipment
manufacturers that, for the sake of compliance with the ASME B&PVC,
need to qualify new weld procedures in accordance with the current edition
of ASME Section IX.
• Additionally, this creates a problem for raw material suppliers and
equipment manufacturers that, for the sake of compliance with the ASME
B&PVC, are working to the current edition of ASME Section V.
• Raw material suppliers and equipment manufacturers are working to
standards other than API Spec 6A that require compliance with the latest
The ASME B&PVC 2010
edition.
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edition is the current edition.
History
• The Design Task Group also noted in it’s minutes from the 18
June 2009 meeting:
“At some point there should be a rewrite of the design
sections of the standards to incorporate the methods of the
2004 Code, eliminating the problem of referencing an
obsolete standard. One possibility would be a separate API
Standard that could be referenced by each of the equipment
specifications.”
• This has not happened.
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The Problem
Current Wording:
7.4.2.2.14 Weld NDE — Volumetric
The following apply:
d) test method for ultrasonic examination:
Ultrasonic examinations shall be performed in accordance
with procedures specified in ASME, BPVC:2004, Section V,
Subsection A, Article 4.
All of the references to Section V use the obsolete 2004 Edition.
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The Problem
Current Wording:
“6.2 Non-pressure-containing weldments other than weld
overlays — PSL 1 to PSL 3
The following apply:
a) welding procedure/performance:
Welding procedures and performance qualifications shall be
in accordance with ASME BPVC:2004, Section IX, Articles II
and III with 2005 and 2006 addenda.”
All of the references to Section IX use the obsolete 2004 Edition,
with the obsolete 2005 and 2006 addenda.
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The Problem
Current Wording:
“6.3.2.3 Welding procedure qualifications
The following apply:
a) written procedure:
Welding shall be performed in accordance with welding
procedure specifications (WPS), written and qualified in
accordance with ASME, BPVC:2004, Section IX, Article II. The
WPS shall describe all the essential, nonessential and
supplementary essential (if required; see ASME, BPVC:2004,
Section IX) variables.”
The PQR shall record all essential and supplementary essential
(if required) variables of the weld procedure used for the
qualification test(s). Both the WPS and the PQR shall be
maintained as records in accordance with the requirements of
7.5.”
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The Problem
Current Wording:
“6.3.2.3 Welding procedure qualifications
b) base metal groupings:
The manufacturer may establish a P-number grouping for
material(s) not listed in ASME, BPVC:2004, Section IX.”
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The Problem
Current Wording:
“6.3.2.4 Welder performance qualification
The following apply:
a) testing requirements:
Welders and welding operators shall be qualified in
accordance with ASME, BPVC:2004, Section IX, Article III.
b) records:
Records of welder performance qualification (WPQ) tests
shall be in accordance with ASME, BPVC:2004, Section IX.”
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The Problem
Current Wording:
“6.3.3.2 Welding procedure qualification
The following apply:
a) base metal groupings:
Each base material that is not listed in an ASME,
BPVC:2004, Section IX, P-number or S-number grouping
shall be specifically qualified by the manufacturer.”
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The Problem
Current Wording:
“6.5.1.1.2 Welding procedure/performance qualification
Qualification shall be in accordance with ASME, BPVC:2004,
Section IX, Articles II and III, for weld overlay.
The following apply:
a) chemical analysis:
Chemical analysis shall be performed on the weld metal in
accordance with the requirements of ASME, BPVC:2004,
Section IX, at a location 3 mm (0,125 in) or less from the
original base-metal surface. The chemical composition of the
deposited weld metal at that location shall be as specified by
the manufacturer.”
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The Problem
Current Wording:
“6.5.1.2.2 Welding procedure/performance qualification
Qualification shall be in accordance with ASME, BPVC:2004,
Section IX, Articles II and III, for weld overlay.
The following apply:
a) chemical analysis:
Chemical analysis of the weld metal shall be performed in
accordance with the requirements of ASME, BPVC:2004,
Section IX, at the minimum overlay thickness as specified by
the manufacturer for the finished component.”
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The Problem
Current Wording:
“6.5.1.2.2 Welding procedure/performance qualification
d) guided-bend tests:
Guided-bend tests and acceptance criteria shall be in
accordance with ASME, BPVC:2004, Section IX, to confirm
weld overlay/base material bond integrity.
“6.5.2.2 Welding procedure/performance qualification
Qualification shall be in accordance with ASME, BPVC:2004,
Section IX, Articles II and III, for weld overlay, hard facing or
other types of overlay, as applicable.”
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The Solution
Proposal:
• Revise API Spec 6A Twentieth Edition and ISO 10423:2009
to change all references to the ASME Boiler and Pressure
Vessel Code Section V to an undated reference.
• Revise API Spec 6A Twentieth Edition and ISO 10423:2009
to change all references to the ASME Boiler and Pressure
Vessel Code Section IX to an undated reference.
• Leave the references to the ASME Boiler and Pressure
Vessel Code Section VIII as a dated reference that specifies
the 2004 Edition with 2005 and 2006 addenda.
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The Solution
Justification:
• The use of the obsolete edition of ASME Section V for NDE
creates a problem for raw material suppliers and equipment
manufacturers that, for the sake of compliance with the
ASME B&PVC, are working to the current edition of ASME
Section V.
• Additionally, the use of the obsolete edition of ASME Section
IX for welding creates a problem for weld facilities &
equipment manufacturers that, for the sake of compliance
with the ASME B&PVC, qualify new weld procedures in
accordance with the current edition of ASME Section IX.
• In many cases, the facilities performing NDE and welding on
API 6A equipment are also working to other national and
international standards that are up to date and require
compliance with the latest editions of ASME Section V and
Section IX.
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API CSOEM SR3 Form
• Form ready for submittal
• No money requested
17
API Ballot
• Form ready for submittal
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End Of Presentation
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