Download - ASME IX (Interpretação IX 01-14 á IX-10-20 )
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 1/34
Page 1 sur 34
ASME SECTION IX INTERPRETATIONS
Interpretation: IX-01-14
Subject: QW-500, The Use of SWPSs
Date Issued: September 25, 2001
File No: 01-332
Question: May a manufacturer or contractor adopt and use SWPSs in accordance with the rules
of Article V for work on Code items built to an edition or addenda prior to the 1998 edition with
the 2000 Addenda, provided the construction code does not prohibit the use of SWPSs?
Reply: Yes.
Interpretation: IX-01-15Subject: QW-300.2, Employer’s Responsibility
Date Issued: September 15, 2001
File No: 01-641
Background: Section IX requires that the manufacturer, contractor, assembler, or installer “beresponsible for conducting tests to qualify the performance of welders which his organization
employs in construction of weldments built in accordance with the Code.” It also requires that
the manufacturer, contractor, assembler, or installer provide supervision and control over welders
while they are welding test coupons for performance qualification.
Question (1): An employee of a contractor provides supervision and control over a welder duringwelding of a test coupon, but that welder is not an employee of the contractor at the time of the
test. Is it required that the welder be an employee of that contractor at the time of qualification
testing?
Reply (1): No.
Question (2): Must the welder be an employee of any manufacturer or contractor at the time of
qualification testing?
Reply (2): No.
Interpretation: IX-01-16Subject: Code Case 2142-1 and 2143-1
Date Issued: December 18, 2001
File No: 01-641
Background: The submerged are welding process is being used to deposit corrosion-resistant
weld overlay for Section III, Subsection NB fabrication using a NI-Cr-Fe alloy strip filler metal
and flux combination. The strip filler metal does not meet the chemical requirements of Code
Case 2142-1 (bare electrode and rod), but both filler metal and weld deposit meet the chemical
composition limits of Code Case 2143-1 (covered electrodes).
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 2/34
Page 2 sur 34
Question (1): Must the Ni-Cr-Fe alloy strip filler metal used for the SAW process meet the
chemical composition requirements of Code Case 2142-1 to be classified as F-43 for procedure
and performance qualifications?
Reply (1): Yes.
Question (2): May Ni-Cr-Fe alloy filler metal that is not designated as F-43 per Code Case 2142-
1 be used for welding if the welding procedure is qualified separately per QW-404.37?
Reply (2): Yes.
Question (3): If the Ni-Cr-Fe alloy strip filler metal meets the chemical composition
requirements of Code Case 2143-1 and was produced to the requirements of SFA-5.14, except for
the chemical analysis, may the filler metal be classified as F-43 for procedure and performance
qualification?
Reply (3): No.
Question (4): If the Ni-Cr-Fe alloy strip filler metal is not classified in an SFA specification, and
is not covered in Code Case 2142-1 or 2143-1, is it permissible to identify the filler metal and
flux on the WPS, PQR and WPQ by the manufacturer’s brand names?
Reply (4): Yes.
Interpretation: IX-01-17
Subject: QW-202.2(b), QW-202.3(b) and QW-407.4
Date Issued: December 18, 2001File No: 01-615
Background: A groove weld procedure qualification test coupon 1.5 in. thick was welded with
the SMAW process using multiple passes of ½ in. max. thickness. The test coupon was given a
subsequent post weld heat treatment exceeding the upper transformation temperature prior to the
completion of mechanical testing.
Question: May this PQR be used to support the weld of partial penetration groove welds per
QW-202.2(b) or weld repair and buildup welds per QW-202.3(b) on base material thickness
exceeding 1.65 in.?
Reply: No. Per QW-407.4, a procedure qualification test coupon receiving a post weld heattreatment in which the upper transformation is exceeded, the maximum qualified thickness for
production welds is 1.1 times the thickness of the test coupon.
Interpretation: IX-01-18
Subject: QW-153.1, Acceptance Criteria for Tensile Strength
Date Issued: December 18, 2001
File No: 01-772
Question: Does the minimum specified tensile strength in QW/QB-422 supersede the AS/SB
material tensile strength for procedure qualification?
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 3/34
Page 3 sur 34
Reply: Yes.
Interpretation: IX-01-19
Subject: QW-202.4(b), Dissimilar Base Metal Thickness
Date Issued: December 18, 2001
File No: 01-811
Question: Does QW-202.4(b) permit the maximum weld deposit thickness limit to be extended
beyond the limit specified in QW-451.1?
Reply: No. QW-202.4 applies only to the base metal thickness limits.
Interpretation: IX-01-20Subject: QW-100.3 and QW-420.1, P-Number Reassignment
Date Issued: December 18, 2001
File No: 01-813
Question (1): May a procedure qualification record subject to variable QW-407.1(a) that
included only a PWHT below the lower transformation temperature be used to support a WPS
with PWHT above the upper transformation temperature and a subsequent PWHT below the
lower transformation temperature?
Reply (1): No.
Question (2): Does Section IX address the values to be used as transformation temperature?
Reply (2): No.
Interpretation: IX-01-21
Subject: QW-151.1(d), Reduced Section – Plate; QW-200.4(b), Combination of
Processes; QW-322, Expiration and Renewal of Qualifications
Date Issued: January 19, 2002
File No: 01-035
Background [(1), (2), (3)]: A welder is qualified for manual SMAW and GTAW, and
semiautomatic FCAW and GMAW.
Question (1): Do welders maintain their qualifications for manual SMAW and GTAW by
welding with either semiautomatic GMAW or FCAW?
Reply (1): No.
Question (2): Do welders maintain their qualifications for both SMAW and GTAW by welding
with only one of the processes during the six-month period?
Reply (2): No.
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 4/34
Page 4 sur 34
Question (3): Do welders maintain their qualifications for semiautomatic GMAW and FCAW by
welding with either GMAW or FCAW during the six-month period?
Reply (3): Yes.
Background [(4)]: A WPS was qualified using a Trade Name wire-flux combination that
conforms to a classification in ASME Section II, Part C.
Question (4): Does the substitution in the qualified WPS of a different Trade Name wire-fluxcombination that conforms to the same SFA Specification and classification in ASME Section II,
Part C require requalification?
Reply (4): No.
Background [(5)]: The tensile specimens of a 60 mm PQR test plate was divided into three
pieces. The sum of the thickness of the three specimens was less than 60 mm.
Question (5): What is the allowable percentage thickness reduction from the original base metal
thickness?
Reply (5): Section IX does not address this issue.
Interpretation: IX-01-22
Subject: QW-100.3 and QW-420.1, P-Number ReassignmentDate Issued: March 11, 2002
File No: 01-679
Question: May a previous qualified WPS, written to permit the welding of P-No. 5, Group 1
material to P-No. 5, Group 4 material prior to the establishment of P-Nos. 5A, 5B and 5C be used
to weld SA-213 T22 to SA-213 T91 materials?
Reply: Yes.
Interpretation: IX-01-23
Subject: QW-202.4, Dissimilar Base Metal Thicknesses
Date Issued: March 11, 2002
File No: 01-789
Question: A WPS is qualified to weld base material from 1.6 mm to 20 mm. May that WPS be
used for welding a part 30 mm thick that has been tapered to 15 mm thick to another 15 mm part?
Reply: Yes.
Interpretation: IX-01-24
Subject: QW-200.4, Impact Test Qualification of Multi-process Welds
Date Issued: March 11, 2002
File No: 01-814
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 5/34
Page 5 sur 34
Question: A welding procedure qualification is made using multiple welding processes on a
single test plate for an application where notch-toughness testing is required. The weld coupon
was welded with two passes, each of GTAW and FCAW, and the remainder with SAW process.
Is it required to take multiple sets of weld metal impact test specimens to include all welding processes, when all welding could not be included in a single set of specimens?
Reply: Yes.
Interpretation: IX-01-25
Subject: Section II, Part CDate Issued: March 11, 2002
File No: 01-815
Question: Does Section II, Part C mandate the use of SFA-5.01?
Reply: No.
Interpretation: IX-01-26Subject: QW-100.3, The Use of the Referenced Edition of the Code
Date Issued: March 11, 2002
File No: 01-826
Background: A designer specifies a specific year of the ASME Code to be complied with for
the fabrication of a component, i.e., including 96 Addenda, and this component is installed in
2003.
Question (1): What year of Section IX does the installer use for qualifying welders/welding
operators?
Reply (1): Welders are qualified in accordance with the current edition and addenda of
Section IX in effect at the time of the qualification. See QW-100.3.
Question (2): What year of Section II does the installer use for purchasing welding materials?
Reply (2): Section IX does not address this issue. The question should be addressed to the
applicable construction code.
Interpretation: IX-01-27
Subject: QW-452.1, Nominal Coupon Thickness
Date Issued: March 11, 2002
File No: 02-111
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 6/34
Page 6 sur 34
Question: A welder welds a NPS 6 Schedule 80 test coupon that is 0.432 in. thick. He uses one
welding process, one set of essential variables, and deposits at least three layers of weld metal in
that test coupon. Is that welder qualified to weld “maximum to be welded”?
Reply: No. The nominal coupon thickness must be at least ½ in. thick in order for a welder to be
qualified for “maximum to be welded”.
Interpretation: IX-01-28Subject: QW-409.4, Electrical Characteristics
Date Issued: May 22, 2002
File No: 02-2691
Question: Does QW-409.4 apply to the current type used to preheat the filler metal wire when
welding GTAW Hot-Wire Automatic or machine corrosion-resistant overlay?
Reply: No.
Interpretation: IX-01-29
Subject: Section II, Part C, SFA Specifications, Marking of PackagesDate Issued: October 3, 2002
File No: 02-2692
Background: ASME Section II, Part C, SFA Specifications state in the “Marking of Packages”
paragraphs that the AWS specification and classification designations must be marked on the
outside of each unit package.
Question (1): Must filler metal procured to an ASME SFA specification be marked with the
ASME SFA specification, such as ASME SFA-5.XX?
Reply (1): No.
Question (2): Is marking the package with the AWS specification and classification, such as
AWS A5.XX EXXXX required?
Reply (2): Yes.
Question (3): May the material manufacturer add the ASME specification (e.g., SFA-5.XX) to
the required AWS markings on the unit container?
Reply (3): Yes.
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 7/34
Page 7 sur 34
Interpretation: IX-01-30
Subject: QW-403.5, Base Metal Requirements
Date Issued: December 30, 2002
File No: 02-2693
Question: When impact testing of a heat-affected zone is required for nonferrous base
materials of the same P-Number, does a PQR with a UNS number designation (e.g., SB-619,
UNS N06022) qualify a WPS that specifies a different UNS number designation (e.g., SB-619
UNS N10276) within the same P-Number?
Reply: No.
Interpretation: IX-01-31Subject: QW-423, Alternate Base Materials for Welder Qualification
Date Issued: December 30, 2002
File No: 02-2694
Question (1): May a welder who has qualified on a P-Number base metal within the left
column of QW-423, weld any combination of P-Number base metals in the corresponding row
of the right column, within the limits of the other essential variable limits qualified?
Reply (1): Yes.
Question (2): May a welder who has qualified on a P-Number base metal within the left
column of QW-423, weld one of the P-Number base metals in the corresponding row of theright column to any other (dissimilar) P-Number in the corresponding row of the right column,
within the limits of the other essential variable limits qualified?
Reply (2): Yes.
Question (3): May a welder who has qualified on a P-Number base metal within the left
column of QW-423 welded to an unassigned base metal, weld any combination of P-Number
base metals in the corresponding row of the right column to the unassigned metal, within the
limits of the other essential variable limits qualified?
Reply (3): Yes.
Interpretation: IX-01-32
Subject: QW-200.4(b), Root Pass Procedure Qualification
Date Issued: December 30, 2002
File No: 02-3449
Question: Do the provisions of QW-200.4(b) permit a GTAW procedure qualification test
weldment performed on a 13 mm thick coupon to support depositing a root pass in a
production joint of the qualified base metal having a thickness of 8 mm when impact testing is
required?
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 8/34
Page 8 sur 34
Reply: No. See QW-403.6.
Interpretation: IX-01-33Subject: QW-283, Welds with Buttering
Date Issued: December 30, 2002
File No: 02-3896
Background: In all cases described below, the manufacturers develop and follow WPSs and
PQRs based on the test coupons welded. The minimum buttering thickness in all cases will be
greater than 3/16 in.
Question (1): Manufacturer A qualifies a WPS by buttering the ends of the test coupons, which
are the same material. The buttered ends are heat treated, then the weld is completed using the
same filler metal as was used for the buttering. Manufacturer B welds a groove weld test couponof the same best metal using the same process, filler metal and other essential variables as
manufacturer A. That test coupon is heat treated in the same manner as the heat treatment used
for the buttering by manufacturer A. May manufacturer A weld parts that were buttered by
manufacturer B?
Reply (1): Yes.
Question (2): Manufacturer C welds a groove weld test coupon using the same base metal,
process, filler metal, and other essential variables as manufacturer A. That test coupon is heattreated in the same manner as the heat treatment used for buttering by manufacturer A. May
manufacturer A weld parts that were buttered by manufacturer C?
Reply (2): Yes.
Question (3): Manufacturer A receives parts that have been buttered by both manufacturers B
and C. May the parts buttered by manufacturer B be welded by manufacturer A to parts buttered
by manufacturer C?
Reply (3): Yes.
Question (4): Manufacturer D receives parts that have been buttered by manufacturers A, B and
C. May manufacturer D weld the buttered parts together using a buttered groove weld test
coupon qualified using the same base metal, process, filler metal, and other essential variables as
manufacturer A?
Reply (4): Yes.
Question (5): Manufacturer D receives parts that have been buttered by manufacturers A, B and
C. May manufacturer D weld the buttered parts together using a groove weld test coupon
qualified in accordance with QW-283.4(b) using the same process, filler metal, and other
essential variables that manufacturer A used to join the buttered parts (i.e., the as-welded portion
of the test) using a base metal that nominally matches the chemical analysis of the buttering used
by manufacturer A, B, or C?
Reply (5): Yes.
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 9/34
Page 9 sur 34
Question (6): Manufacturer E welds a groove weld test coupon of another base metal using the
same filler metal as manufacturer A. That test coupon is heat treated and tested in accordance
with QW-202.2(a). May manufacturer F, who has welded a test coupon in accordance with QW-283.4(b), join parts buttered by manufacturer E?
Reply (6): Yes.
Interpretation: IX-01-34
Subject: QB-203.1, Limits of Qualified Flow Positions for Procedures, and QB-408.4,
Joint Design; QB-303.3, Limits of Qualified Positions, and QB-408.1, Joint
Design
Date Issued: March 13, 2003
File No: 02-3541
Background (1): QB-203.1 states: “Qualification in pipe shall qualify for plate, but not vice
versa. Horizontal-flow in pipe shall qualify for flat-flow in plate.” QB-408.4 states: “A
change in the joint type, e.g., from a butt to a lap or socket, from that qualified. For lap or
socket joints, a decrease in overlap length from that qualified.”
Question (1): Do procedure qualifications in plate lap joints qualify for tube-to-tube socket
joints for brazing procedure qualifications?
Reply (1): No.
Background (2): QB-303.3 states: “Qualifications in pipe shall qualify for plate, but not vice
versa. Horizontal-flow in pipe shall qualify for flat-flow in plate.” QB-408.1 states: “A
change in the joint type, i.e., from a butt to a lap or socket, from that qualified. For lap or socket joints, an increase in lap length of more than 25% from the overlap used on brazer
performance qualification test coupon.”
Question (2): Do performance qualifications in plate lap joints qualify for tube-to-tube socket
joints for brazer performance qualifications?
Reply (2): No.
Interpretation: IX-01-35
Subject: QW-451.1, Procedure Qualification Thickness Limits
Date Issued: March 13, 2003File No: 02-4075
Question (1): A test coupon is prepared as follows: A 1.75 in. plate is welded to 1.75 in. plate
with 1 in. thick weld. Per QW-451.1, is 8 in. the maximum thickness range of base metal
qualified?
Reply (1): Yes, except that further limits or exceptions may apply as stated in Notes (1) and (5)
of QW-451.1.
Question (2): Using the same test coupon as Question (1), where a single process was used to
deposit the entire weld thickness, is 8 in. the maximum thickness of the weld metal permitted per
QW-451.1?
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 10/34
Page 10 sur 34
Reply (2): Yes, except that further limits or exceptions may apply as stated in Notes (1) and (5)
of QW-451.1.
Interpretation: IX-01-36
Subject: QW-301.4, Record of Welder Performance Qualification
Date Issued: March 13, 2003
File No: 02-4198
Background: For welder’s performance qualification, a multiple layer groove weld is made on a
single test coupon using one welder for first layer and another welder for the second.
Question: QW-301.4 requires a record of welder performance qualification. May a single form be used to record the essential variables, the type of test and test results, and the ranges qualified
in accordance with QW-452 for each welder and welding operator?
Reply: Section IX specifies information required to be recorded, but does not specify the format
of the records.
Interpretation: IX-01-37
Subject: QW-404.33, Change in SFA Specifications for Filler Metal Classification
Date Issued: May 19, 2003
File No: 03-263
Question: Does the expression “a change in the SFA specification filler metal classification”
refer to a change in the AWS classification?
Reply: Yes.
Interpretation: IX-01-38
Subject: Section II, Part C, SFA 5.1, Table 1
Date Issued: May 19, 2003
File No: 03-274
Question: May a welder qualify with E7018 electrode using either uphill or downhill
progression?
Reply: Yes.
Interpretation: IX-01-39
Subject: QW-401.3, Supplemental Essential Variable (Procedure)
Date Issued: May 19, 2003
File No: 03-469
Background: A company has qualified a PQR to satisfy all testing requirements other than notch
toughness for welding P1 Group 2 to P1 Group 2 by the SAW process. Another test coupon is
subsequently prepared using the WPS written on the original PQR and an additional PQR is then
qualified with only testing for notch toughness, as allowed by the Code, to supplement the
original PQR for welding with impact requirements. However, the preheat value (an essential
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 11/34
Page 11 sur 34
variable) used to qualify the original PQR was 150°F. The preheat temperature was less than
150°F.
Question: May the supplemental PQR with reduced preheat be used with the original PQR tosupport a WPS for notch toughness application?
Reply: Yes, provided that the requirements of QW-406.1 are met.
Interpretation: IX-01-40
Subject: QW-201/QW-201.1, Manufacturer’s or Contractor’s Responsibility
Date Issued: May 19, 2003
File No: 03-740
Background: Several manufacturing organizations within the same company perform welding
procedure qualifications in accordance with Section IX. Each manufacturing organization performs these activities in accordance with specific Quality Assurance Program(s)/Quality
Control System(s) that comply with their ASME Construction Code Certificate(s) of
Authorization and describe operational control of qualifications.
Question: Is it permitted for any of the manufacturing organizations within the company to use
WPSs and PQRs qualified by any of the other manufacturing organizations?
Reply: Yes, this is permitted by QW-201.
Interpretation: IX-04-01
Subject: QW-151.3, Tension Test Turned SpecimenDate Issued: September 15, 2003
File No: 02-3586
Background: ASME Section IX, Paragraph QW-151.3(b) states, " For thicknesses over 1" (25
mm), multiple specimens shall be cut through the full thickness of the weld with their centers
parallel to the metal surface and not over 1" (25 mm) apart. The centers of the specimens
adjacent to the metal surface shall not exceed 5/8" (16 mm) from the surface."
Question (1): Does the specified distance between specimens of 'not over 1" apart' refer to the
distance between the centers of the specimens?
Reply (1): Yes.
Question (2): How many tension tests would be required for a 2-1/2" thick groove welding
procedure qualification test coupon welded full thickness?
Reply (2): Two. See QW-451.1.
Question (3): When reduced section turned tension test specimens are used in accordance with
QW-462.1(d) for a 2-1/2" thick groove welding procedure qualification test coupon welded
full thickness, what is the minimum number of specimens that must be removed for each
tension test set?
Reply (3): Three.
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 12/34
Page 12 sur 34
Interpretation: IX-04-02
Subject: QW-258.1 and QW-410.38Date Issued: September 15, 2003
File No: 03-1029
Background: The elctroslag welding process is used to apply a corrosion-resistant overlay. The
essential variables in QW-258.1 apply. QW-410.38 is listed as an essential variable for corrosion-resistant overlay.
Question (1): When a single layer is recorded in the PQR, is a WPS qualified for application of
multiple layers?
Reply (1): No.
Question (2): When multiple layers are recorded in the PQR, is a WPS qualified for application
of single layer?
Reply (2): No.
Interpretation: IX-04-03
Subject: QW-407.1 , Postweld Heat Treatment
Date Issued: September 15, 2003File No: 03-1212
Question (1): May a procedure qualification record subject to the variable QW-407.1(a) whichqualified P-No. 8 to P-No. 8 with no PWHT support a WPS with PWHT?
Reply (1): QW-407.1(a) does not apply to P-No. 8 materials. See QW-407.1(b).
Question (2): Would application of controlled and monitored heat to the weld and surrounding
area for the correction of distortion in P-No. 8 material be considered a PWHT operation?
Reply (2): See QW-407.1(b).
Note: This interpretation originally appeared in Volume 54. The “P8” has been corrected by
Errata to read “P-No. 8”.
Interpretation: IX-04-04
Subject: QW-401.3 Supplemental Essential Variable
Date Issued: September 15, 2003
File No: 03-1246
Background: A WPS is supported by three PQRs. Two PQRs are recorded on 12 mm and 28.5
mm thick coupons using tensile, bend, and impact testing specimens. A third PQR was made
using 5 mm thick plate using the same welding parameters, but only impact specimens were
tested.
Question (1): May these PQRs be combined to support a WPS for welding 2.5 mm through 57
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 13/34
Page 13 sur 34
mm material requiring notch toughness testing?
Reply (1): No.
Question (2): May these three PQRs be combined to support welding base metal thicknesses
of 4.8 through 57 mm with or without notch toughness?
Reply (2): Yes.
Note: This interpretation originally appeared in Volume 54. The “WP” in Question (1) has
been corrected by Errata to read “WPS”.
Interpretation: IX-04-05
Subject: QW-200.2(f) and QW-451Date Issued: December 30, 2003
File No: 03-1583
Question: Two separate PQRs with identical welding process exist for a 6 mm and an 8 mm
base metal thickness. May these PQRs support a WPS, with all the essential and
supplementary essential variables unchanged, to weld a 28 mm thick production joint?
Reply: No, see QW-451.
Interpretation: IX-04-06Subject: QB-151.3, QB-451.3, and QB-462.1(e)
Date Issued: December 30, 2003
File No: 03-1664
Background: Two tubes under 3" diameter are separately torch brazed into each end of a coupling
using face fed filler in the same position with all the remaining brazing variables the same for
both joints. The coupon is pulled to failure which occurs in the weaker of the two brazed joints.
The resulting ultimate tensile strength exceeds the minimum specified values listed in QW/QB-
422.
Question (1): Does one tensile specimen, as shown in QB-462.1(e), brazed in this manner, fulfill
the requirement in QB-451.3 for two tension tests?
Reply (1): Yes, see QB-463.1(e).
Question (2): Since the same inside diameter, outside diameter, cross-sectional area ultimate
load, ultimate tensile strength, and type of failure exist for both lap joints, may the same values be
recorded for the two tension tests on the Brazing PQR?
Reply (2): Yes.
Interpretation: IX-04-07
Subject: QW-310.1, QW-452.3 and QW-461.9
Date Issued: December 30, 2003
File No: 03-1686
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 14/34
Page 14 sur 34
Question: Does QW-310.1 apply if the pipe coupon is welded in the 6G position?
Reply: No.
Interpretation: IX-04-08
Subject: QW-200.4, Combination of Welding Procedures
Date Issued: April 1, 2004File No: 03-1770
Background: A combination weld process PQR was qualified using the GTAW for the root
pass, SMAW and SAW.
Question: May this PQR support a WPS for welding with only one or two of the processes
shown on the PQR?
Reply: Yes, provided the following are met:
a) The remaining essential, nonessential and supplementary essential variables, when
applicable, are applied.
b) The base metal and deposited weld metal thickness limits of QW-451 are applied.
Interpretation: IX-04-09
Subject: QW-403.9, Base Metal Thickness
Date Issued: April 1, 2004File No: 04-65
Background: An EGW procedure was qualified on 3/8 in. thick base material completing theweld joint in one (1) single pass.
Question: Is the WPS qualified to make a weld deposit greater than 1/2 in., in one pass, in base
metal greater than 1/2 in. in thickness?
Reply: No.
Interpretation: IX-04-10
Subject: QW-100.3 and QW-202.2, Procedure Qualification Record Time Limits
Date Issued: June 10, 2004
File No: 04-601
Question: Is there a time limit on the validity of a PQR?
Reply: PQRs always remain valid, but may only be used to support WPSs, provided they meet
the requirements of the 1962 or later Edition of ASME Boiler and Pressure Vessel Code Section
IX. See QW-100.3.
Interpretation: IX-04-11
Subject: QW-451.1, Procedure Qualification Thickness Limits and Test Specimens and
QW-202.4, Dissimilar Base Metal Thicknesses
Date Issued: December 22, 2004
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 15/34
Page 15 sur 34
File No: 04-599
Background: A procedure qualification test coupon using the same P-Number material and
consisting of two plates of different thicknesses are welded together, where the thicker of thetwo plates (T2 = 1-1/2” thick) has been tapered on a 4:1 taper down to the thinner plate
thickness (T1 = 1” thick).
Question (1): Does this test coupon qualify the WPS for a base metal thickness range of 3/16”
to 8”?
Reply (1): See Interpretation IX-86-43, Question (2).
Background: A procedure qualification test coupon using the same or different P-Number
materials and consisting of two plates of different thicknesses, T2 = 1-1/2” thick and T1 = 1”thick welded with a single process. The thicknesses meet on the same plane with neither plate
being tapered. The joint is welded in accordance with the sketch below.
Question (2): Does this test coupon qualify the WPS for both base metals for a thickness
range of 3/16” to 8” on both sides of the weld joint?
Reply (2): Yes.
Question (3): Does this test coupon qualify the WPS for both base metals of different P
Numbers for a thickness range of 3/16” to 8”?
Reply (3): No. QW-202.4 requires both base metal thicknesses be in accordance with QW-
451.1. Base metal T1 is qualified 3/16” to 2” and base metal T2 is qualified 3/16” to 8”,
except as permitted by QW-202.4(b)(1).
Interpretation: IX-04-12
Subject: QW-409.1, Electrical Characteristics, Heat InputDate Issued: December 22, 2004
File No: 04-1013
Question (1): Does QW-409.1 require that the highest heat input, to be recorded on the PQR, be
calculated on the parameters used at the location where the HAZ impact specimens are removed?
Reply (1): No.
Question (2): GTAW is a non-consumable electrode welding process that would record zero
for the “per unit length of electrode” in QW-409.1(b). Therefore, can the weld volume method
detailed in QW-409.1 be used to control the heat input for a non-consumable electrode welding
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 16/34
Page 16 sur 34
process such as GTAW?
Reply (2): See Interpretation IX-92-40.
Interpretation: IX-04-13
Subject: QW-322.2, Renewal of Qualification
Date Issued: December 22, 2004
File No: 04-1457
Background: A welder has been qualified for the GMAW process (short circuiting
transfer mode). The required mechanical bend tests were performed and found to be acceptable.
The welder did not weld with this process during the following six-month period, resulting in
expiration of the qualification.
Question: May a welder’s qualification be renewed by radiographing a production weld performed with the GMAW process (short circuiting transfer mode)?
Reply: No. See QW-322.2(a).
Interpretation: IX-04-14
Subject: QW-200.2, Procedure Qualification Record and QW-409.1, Electrical
Characteristics, Heat Input
Date Issued: December 22, 2004File No: 04-1592
Question (1): Procedure Qualification tests were conducted with notch toughness testing.When documenting the PQR with actual variables (Amps, Volts, Travel Speed) that were
recorded during welding of the test coupon, is it required that a single value be recorded for these
variables in the PQR?
Reply (1): No. See QW-200.2(b).
Question (2): Must the volts, amps and travel speed used to calculate heat input for each
process per QW-409.1 be measured in the same weld pass or unit length of weld?
Reply (2): Yes.
Interpretation: IX-04-15
Subject: QW-407.2, Base Metal Thickness Qualification and QW-407.2, PWHT
Temperature and Time Range
Date Issued: December 22, 2004
File No: 04-1595
Question (1): Will a procedure qualification test coupon on 1.5 in. thick P-No. 1, Gr. 2 material
and post weld heat treated at 1100 deg. F. for 1.5 hours with supplementary essential variable
requirements met, support a WPS with supplementary essential variable requirements for
production welding on 8 in. thick P-No. 1, Gr. 2 material that is PWHT at 1100 deg. F. for 3.5
hours?
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 17/34
Page 17 sur 34
Reply (1): No.
Question (2): Based on the conditions stated in Question 1, could the PWHT time on the 8 in.thick weldment be increased to 4 hours and 10 minutes at 1100 deg. F. and still be in compliance
with Code requirements?
Reply (2): No.
Interpretation: IX-92-69
Subject: QW-409.1, Electrical Characteristics
Date Issued: May 19, 2005
File No: 05-635
Note: Interpretation IX-92-69 has been withdrawn
Interpretation: IX-04-16
Subject: QW-403.5, Qualification of Dissimilar Group Number Base Metals
Date Issued: March 8, 2005
File No: 04-1418
Question (1): A PQR is qualified with impact testing using API 5L X56, which is an S-No.1,
Group 2 material. Does that PQR support a WPS for impact tested welding API 5L X52 and X46which are S-No.1, Group 1 materials?
Reply (1): No.
Question (2): Does a PQR qualified with impact testing conducted using an unassigned material
welded to an S-No.1, Group 2 material support a WPS for welding the same unassigned material
to S-No.1, Group 1 material?
Reply (2): No.
Interpretation: IX-04-17
Subject: QW-409.8, QW-256, SFA Specifications, GTAW Electrode Characteristics
Date Issued: March 8, 2005
File No: 05-24
Question: May current levels outside the range of SFA 5.12 Table AI for specific tungsten
electrode diameters be specified in a WPS in accordance with Section IX?
Reply: Yes.
Interpretation: IX-04-18
Subject: QW-200.4(b), Combination Procedure Qualification Records
Date Issued: March 8, 2005
File No: 05-25
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 18/34
Page 18 sur 34
Background: A combination GTAW and SMAW WPS is supported by two PQRs. PQR A is
welded with SMAW to join 38 mm (1-½ in.) thick plates with 38 mm (1-½ in.) of SMAW
deposit. PQR B is welded with GTAW and SMAW to join 13 mm (½ in.) thick plates, with 3 mm(1/8 in.) of GTAW deposit, and 10 mm (3/8 in.) of SMAW deposited.
Question (1): Do PQRs A and B qualify the combination WPS for a base metal thickness range
of 5 mm (3/16 in.) to 200 mm (8 in.) when impact testing is not required?
Reply (1): Yes.
Question (2): Do PQRs A and B qualify the combination WPS for a maximum deposited weld
metal thickness of 6 mm (¼ in.) for the GTAW process and 200 mm (8 in.) for the SMAW
process?
Reply (2): Yes.
Question (3): When impact tests are performed for both PQRs with acceptable results, do
PQRs A and B qualify the combination WPS for a base metal thickness range of 13 mm (½ in.) to
200 mm (8 in.) when impact testing is required?
Reply (3): Yes.
Interpretation: IX-04-19Subject: QW-404.36, Filler Metals, Testing of Recrushed Slag
Date Issued: March 8, 2005
File No: 05-26
Question: Does QW-404.36 require that each batch or blend of recrushed slag, as defined in
SFA-5.17, be tested in accordance with Section II, Part C regardless of the source of slag?
Reply: Yes.
Interpretation: IX-04-20
Subject: QW-407.1, Welding Procedure Specification, Postweld Heat Treatment
Date Issued: March 8, 2005
File No: 05-293
Question: A WPS for joining P-No.4 to P-No.4 specifies that the PWHT be performed at1125 deg. F +/- 25 deg. F, which is below the lower transformation temperature for the material.
May this WPS be revised to specify a PWHT performed at 1225 deg. F +/- 25 deg. F, which is
also below the transformation temperature, without requalification of the procedure?
Reply: Yes.
Interpretation: IX-04-21
Subject: QW-184 and QW-322.1, Production Welds, Revoking Welder Qualifications
Date Issued: May 19, 2005
File No: 05-528
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 19/34
Page 19 sur 34
Question (1): A welder qualified for fillet welds by a qualification test on a plate groove weld is
required to weld a fillet weld of 3/8 in. (10 mm) leg on a nozzle to shell weld. Is the welder
required to produce fillet welds with legs having a maximum difference in length of 1/8 in. (3.2
mm) as per QW-184?
Reply (1): No, QW-184 does not apply to production welds.
Question (2): The same welder, qualified as per previous question, produces fillet welds with one
leg size twice the size of the other (3/8 versus 3/4 in.). Is this cause for questioning his/her abilityto weld within the qualification parameters and revoke his/her qualification for fillet welds, in
terms of QW-322.1(b)?
Reply (2): Section IX does not establish criteria for revoking welder qualifications.
Interpretation: IX-04-22
Subject: QW-407.4, Qualified Thickness Range when Exceeding the PWHT Upper Transformation Temperature
Date Issued: May 27, 2005
File No: 04-1301
Question: When variable QW-407.4 applies per QW-250 for test coupons with postweld heat
treatment exceeding the upper transformation temperature is the maximum thickness qualified
1.1 times the thickness of the test coupon for ferrous P number materials; P-No.1 through P-No.7
and P-No. 9A through P-No11B?
Reply: Yes
Interpretation: IX-04-23Subject: QW-211 and QW-310.2, Procedure Qualification for Groove Welds with
Backing (2004 Edition)
Date Issued: August 18, 2005
File No: 05-784
Background: A performance qualification test is performed using solid round bar machined to
42.20 mm (1.66 in.) O.D. with a machined circumferential weld groove that is 14.6 mm (0.575
in.) deep and has integral backing. Welding is performed in the 6G test position with a single
welding process. At least three weld layers are deposited. The test coupon will be subjected to
radiographic examination.
Question: May the test coupon described above be used for a performance qualification test inthe 6G position welded with a single process to qualify for all position welding of unlimited weld
metal thickness with backing and for all diameters 25 mm (1 in.) O.D. and greater?
Reply: Yes, however, multiple test coupons are required to provide a minimum weld length of
150 mm (6 in.) for radiographic examination and the radiographic examination requirements of
QW-191 are met.
Interpretation: IX-04-24
Subject: QW-461.9, Performance Qualification – Position and Diameter Limitations
(2004 Edtion)
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 20/34
Page 20 sur 34
Date Issued: November 15, 2005
File: 05-1195
Question: A welder was qualified on pipe 5/8” thick in the 6G position using the GTAW processwithout backing for his root pass, and SMAW with F4 filler metal to complete the joint. He is
also qualified to weld using SMAW on plate in the 1G position without backing.
May this welder deposit a root pass using SMAW with F4 filler in the 6G position without
backing?
Reply: No.
Interpretation: IX-04-25
Subject: QW-151.3 and QW-451, Tension Test Requirements for Turned Specimens
(2004 Edition)Date Issued: November 17, 2005
File No: 05-1404
Background: A test coupon of 1 1/8” thickness was welded. Only two (2) turned 0.505 inch
diameter tension specimens were prepared and tested. The test results were acceptable for the
specimens tested.
Question (1): Do the tension tests performed satisfy the requirements of QW-150 and QW-451?
Reply (1): No.
Question (2): Are the requirements of QW-150 and QW-451 satisfied if the WPS and this PQR
supports is limited to a base metal thickness range of 3/16 to 2 inches instead of a base metal
thickness range of 3/16 to 2-1/4 inches that would have been permitted had a sufficient number of
tension specimens been tested?
Reply (2): No.
Interpretation: IX-04-26
Subject: QW-201, Manufacturer’s or Contractor’s Responsibility (2004 Edition)
Date Issued: February 22, 2006
File No: 05-1196
Background: Two independent companies A and B form a Limited Liability Partnership (LLP) to
perform work requiring ASME Section I Code Stamp. The LLP has obtained valid ASME
Certificates of Authorization. Each company also has valid, existing ASME Certificates of
Authorization. The organization effective operational control of welding procedure qualification
is described in each of the partner’s Quality Control System Manuals and the LLP’s Quality
Control System Manual.
The welding procedure qualification tests and production welding are under the full supervision
and control of the same individual representing both the LLP and company A.
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 21/34
Page 21 sur 34
Question: May the LLP use PQR’s qualified by company A after the formation of the LLP?
Reply: Yes.
Interpretation: IX-04-27
Subject: Units of Measurement
Date Issued: February 22, 2006
File No: 05-1215
Question (1): Is it acceptable to maintain welder performance qualification records in SI units,
with a conversion table as part of the welding manual to ensure that qualification limits are not
exceeded?
Reply (1): Yes. Code Case 2523 provides information about when such conversions are
required and the requirements for performing such conversions.
Question (2): Is it acceptable to maintain welding procedure specifications that are dual
dimensioned with SI units primary and US Customary units in parenthesis, with a conversion
table as part of the welding manual to ensure that qualification limits are not exceeded?
Reply (2): Yes. Code Case 2523 provides information about when such conversions are
required and the requirements for performing such conversions.
Interpretation: IX-04-28
Subject: QW-405.2, Welding Position (2004 Edition)
Date Issued: June 21, 2006File No: 06-323
Question (1): If a Stud Welding Procedure Qualification is performed in the 4S position does the
same procedure qualification qualify for the 1S position?
Reply (1): No.
Question (2): If a Stud Welding Procedure Qualification is performed in the 4S and 2S position
does the same procedure qualification also qualify for all positions?
Reply (2): No.
Interpretation: IX-04-29
Subject: QW-407.1(b), Postweld Heat Treatment
Date Issued: June 21, 2006
File No: 06-462
Question: Does QW-407.1(b)(2) address the temperature ranges for stress relieving, stabilizing
and/or solution annealing heat treatments?
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 22/34
Page 22 sur 34
Reply: No, QW-407.1(b)(2) addresses PWHT within a specified temperature range. Section IX
requires the temperature range to be specified on the WPS and the PQR supporting the WPS be
within the specified PWHT temperature range. (See the fourth paragraph of the Introduction.)
Interpretation: IX-01-22R
Subject: QW-100.3 and QW-420.1, P-Number Reassignment (2004 Edition)
Date Issued: September 11, 2007
File No: 01-679, 04-600
Question: May a previously qualified WPS, written to permit the welding of P-No. 5, Group 1
material to P-No. 5, Group 4 material prior to the establishment of P-Nos. 5A, 5B, and 5C, be
used to weld SA-213 T22 to SA-213 T91 materials?
Reply: Yes, if the WPS is revised to limit the materials qualified for welding to the P- or S-
Number(s) and Group number(s) assigned to the specific material(s) originally used for the procedure qualification test coupon in the applicable edition and addenda of Section IX.
Interpretation: IX-07-01
Subject: QW-407.1(b), Postweld Heat Treatment (2004 Edition)
Date Issued: February 6, 2007
File No: 06-285
Background: A manufacturer has fabricated multi-convolution bellows of SB-409 UNS N08800, N08810 or N08811 (P-No. 45), in accordance with ASME Section VIII Div. 1, and
Mandatory Appendix 26, Pressure Vessel and Heat Exchanger Expansion Joints. Although the
Code does not require it, the manufacturer performs heat treatment (at 1750 deg. F) subsequent tocompleting all welding and forming.
Question: Is the heat treatment described above considered Postweld Heat Treatment
for the purpose of welding procedure qualification in accordance with Section IX, para.
QW-407.1(b)?
Reply: Yes.
Interpretation: IX-07-02
Subject: QW-201, Manufacturer’s or Contractor’s Responsibility (2004 Edition)
Date Issued: August 17, 2007File No: 06-912
Background: Three construction companies have participated in a nuclear power plant
construction project as a consortium contractor. They have a unified Quality Assurance Program
but the consortium does not hold a Certificate of Authorization. Each of the construction
companies holds their own Certificate of Authorization.
Question: Does “two or more companies of different names in an organization” in QW-201
apply
to the consortium described in the background?
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 23/34
Page 23 sur 34
Reply: No.
Interpretation: IX-07-03Subject: QW-409.2, FCAW Mode of Transfer (2004 Edition)
Date Issued: August 17,2007
File No: 07-1041
Question: Does QW-409.2, the transfer mode variable, apply to the flux cored arc welding process?
Reply: Yes.
Interpretation: IX-07-04
Subject: QW-404.23, Filler Metal Product Form (2007 Edition)Date Issued: August 17, 2007
File No: 07-1343
Question (1): Is the requirement to document essential variable QW-404.23 satisfied when the
AWS filler metal classification is specified in the WPS and recorded on the supporting PQR?
Reply (1): Yes.
Question (2): Does QW-404.23 require the words “solid wire”, “bare wire” or “flux cored” bespecified in addition to the AWS filler metal classification in the WPS and supporting PQR?
Reply (2): No.
Interpretation: IX-07-05
Subject: QW-100.3 and QW-420.1, Change of P-No. as an Essential Variable with
Respect to Reassignment of P-No.5 into P-No. 5A, 5B, and 5C (2004 Edition)
Date Issued: September 11, 2007
File No: 04-600
Background: A welding procedure was qualified in 1975 (without impact testing) for joining P-
No.5 materials, using SA-213-T9 in the PQR test coupon. P-No.5 has since been deleted, and
CrMo materials have been reassigned to P-Nos.5A, 5B, and 5C, with SA-213-T9 being assigned
to P-No.5B. It can be demonstrated that SA-213-T9 is now designated as a P-No.5B material.
Question (1): QW-100.3 allows the continued use of welding procedures qualified under previous
Editions and Addenda of the Code without revision to include any variables required by later
Editions and Addenda. Is it the intent of QW-100.3 to allow the use of this WPS to join P-No.5A,
.P-No.5B or P-No.5C materials without requalification when toughness is not a consideration?
Reply (1): No. QW-100.3 applies when later Code Editions and Addenda have added new
variables for a given welding process. While this WPS can be shown to be qualified for welding
P-No.5B materials to each other, it is intended that the WPS be editorially revised to show
applicability of the WPS to the originally qualified materials under the material grouping
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 24/34
Page 24 sur 34
assignment found in the applicable Edition and Addenda of Section IX. See QW-420.1 and QW-
200.2(c).
Question (2): Is it the intent of Section IX that the WPS described above is acceptable for joiningall materials previously assigned P-No.5?
Reply (2): No. Based upon the original PQR, the WPS is qualified only for joining materials
assigned to P-No.5B under the current Section IX rules. See QW-403.13.
Interpretation: IX-07-06
Subject: QW-407.1 and QW-407.2, Postweld Heat Treatment (2007 Edition)
Date Issued: December 11, 2007
File No: 07-1708
Background: A weld test coupon for a PQR was welded using P-No. 1, Group 2 plate materialto itself and postweld heat treated at 1110°F - 1130°F (600°C - 610°C) for ten hours. The
PQR documents all supplementary essential variable notch-toughness requirements. Notch-
toughness is required and all qualification ranges are supported by the PQR for production
welds.
Question: Will this PQR support a WPS that specifies a PWHT temperature range below the
lower transformation temperature provided the time at temperature does not exceed 12.5
hours?
Reply: Yes.
Interpretation: IX-07-07R
Subject: QW-404.22, Use of Consumable Inserts (2007 Edition)
Date Issued: February 12, 2008
File No: 08-40
Background: QW-356 lists the essential variables for Welder Performance Qualification for
manual GTAW. QW-404.22, the use of consumable inserts, is an essential variable for
Welder Performance Qualification within QW-356.
An individual performs the following two qualification tests:
(a) Groove weld using the GTAW-machine process on a NPS 6 (DN 150) Schedule 40
pipe coupon with a consumable insert.(b) Groove weld using the GTAW-manual process on a NPS 6 (DN 150) Schedule 40
pipe coupon with an open root.
Each qualification test is performed independently and welded full thickness by the process used
to make the root weld
Question (1): Is this individual qualified to weld a NPS 6 (DN 150) Schedule 40 pipe groove
weld by making the root weld with the GTAW-machine process with a consumable insert and
then completing the weld using the GTAW-manual process?
Reply (1): Yes.
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 25/34
Page 25 sur 34
Question (2): Is this individual qualified to make non-through wall weld repairs using the
GTAW-manual process to a NPS 6 (DN 150) Schedule 40 pipe groove weld that was
originally performed using the GTAW-machine process with a consumable insert?
Reply (2): Yes.
Question (3): Is this individual qualified to make through-wall repairs using the GTAW-
manual process to the root of a NPS 6 (DN 150) Schedule 40 pipe groove weld that wasoriginally performed using the GTAW-machine process with a consumable insert if the defect
removal results in a repair cavity with an open root?
Reply (3): Yes.
Interpretation: IX-07-08Subject: QW-200.2(c), Changes to PQR (2007 Edition)
Date Issued: February 12, 2008
File No: 08-209
Question (1): Can additional tests and data that are not required by Section IX (i.e., hardness
ferrite, corrosion, etc.) be added to a PQR at a later date when the testing was not performed as
part of the original PQR, but followed the conditions of the original qualification?
Reply (1): Yes.
Question (2): If the tests and data noted in Question 1 are added to the PQR, would
recertification, including date, be required?
Reply (2): Yes. All changes to a PQR require recertification (including date) by the
manufacturer or contractor per QW-200.2(c).
Interpretation: IX-07-09
Subject: QW-401.3 and QW-403.6, Thickness Range Qualified for Impact Testing (2007
Edition)
Date Issued: May 1, 2008
File No: 08-576
Background: A welding procedure qualification was performed on a 1 in. (25 mm) thick testcoupon. Tension and bend tests were performed on the 1 in. (25 mm) plate. A second welding
procedure qualification was performed on a 0.24 in. (6 mm) plate and only impact testing was
performed. All of the essential and supplementary essential variables remained the same except
for the coupon thickness.
Question: May the above PQRs be used to support a WPS for materials requiring notch
toughness with a qualified thickness range of 0.1875 in. (5 mm) to 2 in. (50 mm)?
Reply: Yes.
Interpretation: IX-07-10
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 26/34
Page 26 sur 34
Subject: QW-201.1
Date Issued: September 18, 2008
File No: 08-1002
Question: Does QW-201.1 allow maintaining effective operational control of PQRs and WPSs
under different ownership than existed during the original procedure qualification when the
ownership of one company has been transferred more than once?
Reply: Yes.
Interpretation: IX-07-11
Subject: QW-301.2, Qualification Tests
Date Issued: November 26, 2008File No: 08-1607
Question: Does QW-301.2 require that a person making adjustments to the welding equipment
settings, under the supervision and control of the welder or welding operator performing the weld,
also be a qualified welder or welding operator?
Reply: No.
Interpretation: IX-07-12
Subject: QW-466.1Date Issued: December 3, 2008
File No: 08-1161
Question: In Table QW-466.1, when the material P-No. is assigned as “All Others” and the
material specification of the ASME Code Section II does not have any requirements for reporting
elongation, is the manufacturer limited to performing a base metal tension test to determine the
proper test jig dimensions A, B, C, and D of Table QW-466.1?
Reply: No.
Interpretation: IX-07-13
Subject: QW-483 and QW-484
Date Issued: December 3, 2008
File No: 08-1464
Question (1): May the manufacturer or contractor, subcontract the certification of procedure or
performance qualification records?
Reply (1): No.
Question (2): Does Section IX specify the qualifications for the individuals who certify
procedure or performance qualification records?
Reply (2): No.
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 27/34
Page 27 sur 34
Interpretation: IX-07-14
Subject: QW/QB-422
Date Issued: June 4, 2009File No: 09-486
Question: Does the assignment of P-No. 8, Group No. 3 to SA-479, Type XM-19, UNS S20910
include all three (3) of the heat treatment conditions (annealed, hot-rolled and strain-hardened)
specified by SA-479?
Reply: Yes.
Interpretation: IX-10-01
Subject: Article III - QW-302.1 & QW-302.2
Date Issued: August 18, 2009File: 09-567
Question (1): If radiographic examination per QW-302.2 is done for qualification of 2 welders on
a single pipe coupon welded in the 6G position, must each welder complete the entire
circumference of the pipe coupon?
Reply (1): Yes.
Question 2: If mechanical testing per QW-302.1 is done for qualification of 2 welders on a single pipe coupon welded in the 6G position, must each welder complete the entire circumference of
the pipe coupon in order to remove the required bend specimens in accordance with QW-463.2(d)
or QW-463.2(e)?
Reply (2): Yes.
Interpretation: IX-10-02
Subject: QW-300.2(b)
Date Issued: August 18, 2009
File: 09-747
Question: Is the manufacturer or contractor required to provide full supervision during the
performance qualification testing, so that issues such as the essential variables and inspections
during the test can be verified and satisfied for each welder or welding operator qualified?
Reply: Yes.
Interpretation: IX-10-03
Subject: QW-304 & QW-355 - FCAW
Date Issued: August 18, 2009
File: 09-1012
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 28/34
Page 28 sur 34
Question (1): May radiographic examination meeting the requirements of QW-304 be used to
qualify a welder using the Flux-Cored Arc Welding (FCAW) process, provided the transfer mode
is not the short circuiting mode?
Reply (1): Yes.
Question (2): When qualifying a welder in accordance with the essential variables listed in QW-
355 for the Gas Metal-Arc Welding (GMAW) process and the requirements of QW-304 are met,
is the welder also qualified for the Flux-Cored Arc Welding (FCAW) process if the essentialvariables are unchanged?
Reply (2): Yes.
Interpretation: IX-10-04
Subject: QW-100.3 and QW-420.1Date Issued: November 12, 2009
File: 09-490
Background: 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 newP-number when the applicable code edition/addenda lists the material under the old P-number?
Reply (2): No
Question (3): Is it required that a supporting PQR be amended to show the new P-number
assignment?
Reply (3): No.
Question 4: May a supporting PQR be amended to show the new P-number assignment?
Reply (4): Yes.
Question (5): May a supporting PQR be amended to show both the old and the new P-number
assignments?
Reply (5): Yes.
Background: A later Edition/Addenda of Section IX assigns a 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?
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 29/34
Page 29 sur 34
Reply (6): No.
Question (7): May the WPS or PQR be amended to reflect the new filler metal F-No.assignment?
Reply (7): Yes.
Interpretation: IX-10-05
Subject: QW-452.5 & QW-181.2.1
Date Issued: December 2, 2009
File: 09-1596
Background: A fillet weld performance qualification test is performed using a production
assembly mockup.
Question: Must a welder or a welding operator using a production mockup assembly be qualified
for a change in fillet size, base material thickness, or configuration of the mockup?
Reply: Yes.
Interpretation: IX-10-06
Subject: QW-452.5Date Issued: December 11, 2009
File: 08-210
Question: Is it the intent of QW-452.5 to permit welder or welding operator fillet weld
performance qualification testing to be conducted using test coupon thicknesses greater than 3/8”
thick?
Reply: Yes.
Interpretation: IX-10-07
Subject: QW-250
Date Issued: December 31, 2009
File: 09-588
Question (1): Is it the intent of the Code that Variables QW-403.6, QW-406.3, QW-409.1, QW-
410.9, and QW-410.10 apply when specified in QW-250 for P-No. 10H materials?
Reply (1): No.
Question (2): Is it the intent of the Code that Variable QW-407.4 applies when specified in QW-
250 for P-No. 10H materials?
Reply (2): Yes.
Interpretation: IX-10-08
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 30/34
Page 30 sur 34
Subject: QW-407.2
Date Issued: February 17, 2010
File: 09-513
Question: May a procedure qualification subject to the variable QW-407.2, for P-No.8 material
with solution annealing PWHT at 1060ºC (1940ºF) for 1 hour and impact tested, support a WPS
for production with both solution annealing at 1060ºC (1940ºF) and stabilization heat treatment at
950ºC (1742ºF) for 2 hours?
Reply: No.
Interpretation: IX-10-09
Subject: QB-451.3 and QB-451.5, Workmanship CouponsDate Issued: February 17, 2010
File: 09-883
Question: For components such as valve bodies and seats in which materials of suitable geometry
and thickness are not normally available to make up lap joint test coupons as required by QB-
451.3, is it the intent of the Committee that the materials to be brazed shall be qualified using any
convenient thickness and geometry suitable for performing the tension and section testes required
by QB-451.3, and that a greater range of base metal thickness may be qualified using
workmanship test coupons in accordance with QB-451.5?
Reply: Yes.
Interpretation: IX-10-10Subject: QW-163 and QW-466.1 – Guided Bend Test Specimen Dimensions
Date Issued: February 17, 2010
File: 09-2140
Background: A welding procedure was qualified for welding on thick base metals. Due to the
thickness of the test coupon required, the width of the face of the weld is 5 inches. Per QW-163,
the weld and heat-affected zone shall be completely within the bent portion of the bend specimen.
For a material with 20% or greater elongation, the standard 3/8” thick bend specimen provides a
bent portion that is 3.53 inches long on the OD of the specimen.
Question (1): Does it meet the requirements of ASME Section IX, if the bend radius and bend
test specimen thickness are increased, such that 20% outer fiber elongation is achieved, and theOD of the specimen contains the entire width of the weld and HAZ?
Reply (1): Yes.
Question (2): Does it meet the requirements of ASME Section IX, if a set of multiple
specimens having the standard 3/8” thickness and representing the entire width of the
weld and both HAZs are removed and tested to meet the requirements for testing the
entire width of the weld?
Reply (2): Yes.
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 31/34
Page 31 sur 34
Question (3): Assuming that both of the base metals in the test coupon are of the
same P-No., does it meet the requirements of ASME Section IX, to use standard 3/8”
thick bend specimens representing at least one HAZ and as much weld metal as
possible, when performing the required bend test?
Reply (3): No.
Interpretation: IX-10-11Subject: QW-453 – Minimum Qualified Thickness for Corrosion Overlay
Date Issued: February 17, 2010
File: 09-2141
Question: For corrosion resistant overlay welding procedure qualifications, where a chemicalanalysis is not required, is there a minimum qualified deposit thickness?
Reply: No.
Interpretation: IX-10-12
Subject: QW-181.1 & QW-424.1 – Procedure Qualification Using Production Assembly
Mockup
Date Issued: February 17, 2010
File: 10-13
Question: Does ASME Section IX allow the use of materials having the same P-No. as the actual
production materials, to produce a test specimen for fillet welding procedure qualification, using
a production assembly mockup?
Reply: Yes.
Interpretation: IX-10-13
Subject: QW-404.5(b), Change in trade designation of filler metal
Date Issued: June 25, 2010
File: 09-1368
Background: A PQR using GTAW process was qualified using filler metal classified in
accordance with ASME Section II Part C, SFA 5.28, ER80S-G classification, with chemistry
meeting A-Number 2. A footnote was used in the PQR to document the filler metal Trade Nameused in the qualification.
Question: A WPS supported by the above PQR using the same filler metal classification ER80S-
G and A-No. 2, but with a different Trade Name was specified. When notch toughness (QW-
404.12) does not apply, does a change in the filler Trade Name specified on the WPS require
requalification?
Reply: No
Interpretation: IX-10-14
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 32/34
Page 32 sur 34
Subject: QW-200.4
Date Issued: June 25, 2010
File: 09-2144
Background: A production weld joint was made using a qualified welding procedure, welding P3
to P8 using an unassigned filler metal. In order perform a repair to this joint, a 2nd welding
procedure was qualified using an assigned filler metal.
Question (1): If the 2nd procedure is qualified by welding P3 to P8, is this procedure qualified torepair the production weld between the P3 & P8 material made with an unassigned filler metal?
Reply (1): Yes. However, see QW-431.
Question (2): For the same situation as question 1, is this procedure qualified to repair the production weld between the P3 & P8 material if the repair is entirely within the previously
deposited weld metal?
Reply (2): Yes. However, see QW-431.
Question (3): If the 2nd procedure is made by welding P-number material that nominally matches
the composition of the unassigned filler metal similar to QW-293.4, is the 2nd procedure qualified
to make a repair to the production weld between the P3 & P8 material provided that the repair is
entirely within the previously deposited weld metal?
Reply (3): Yes. However, see QW-431.
Interpretation: IX-10-15Subject: QW-202.3, Weld Repair and Buildup
Date Issued: August 26, 2010
File: 10-359
Question: May a WPS be used to perform a weld repair per QW-202.3 on a groove weld
previously welded using the same WPS, without revising the WPS to include the groove design
of the repair cavity?
Reply: Yes. Also see interpretation IX-79-72.
Interpretation: IX-10-16Subject: QW-200.1(b), Contents of the WPS; QW-200.2(b), Contents of the PQR;
QW-404.24 and QW-404.27, Supplemental Filler Metal
Date Issued: August 26, 2010
File: 10-1159
Background: QW-404.24 and QW-404.27 are essential variables for the SAW process. A
procedure qualification test was conducted using the SAW process without the use of
supplemental filler metal.
Question: Is it required that the PQR indicate that supplemental filler metal was not used and
must the WPS specify it is not to be used?
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 33/34
Page 33 sur 34
Reply: Yes. However, Section IX does not specify the manner in which this is documented on
the PQR or specified on the WPS. The method of recording information on the PQR and WPS
may be by statement, sketch or other means as long as the essential variables are addressed.
Interpretation: IX-10-17
Subject: QW-322.1(a)
Date Issued: August 26, 2010File: 10-1161
Background: A welder successfully completes a performance qualification test. During the next
six months, the welder used the welding process multiple times during the first four months, but
did not use the welding process in the fifth or sixth month.
Question: When maintaining the welder's qualification, is the welder continuity based on the lastdate the welder used the welding process?
Reply: Yes.
Interpretation: IX-10-18
Subject: QW-256.1; Joining of Clad Materials
Date Issued: November 17, 2010
File: 09-994
Background: A composite (clad) material having a carbon steel base and alloy 825 cladding is to
be joined by welding. The alloy 825 cladding is not included in the design calculations. Thecontractor has a PQR for joining the base metal whose qualified ranges are appropriate for
welding conditions. The contractor also has a PQR for overlaying carbon steel with alloy 625
filler metal using GTAW, whose qualified ranges of essential special process variables for
corrosion resistant overlay welding are applicable to the welding conditions.
Question (1): When joining the clad layer of a composite (clad) material using GTAW
where the clad thickness is not considered in the design calculations, are the essential special
process variables or QW-256.1 applicable to the clad portion of the weld?
Reply (1): Yes. See QW-217 and QW-251.4.
Question (2): When completing the clad portion of a weld using the GTAW process, is a WPSqualified to deposit corrosion resistant weld metal using alloy 625 (UNS N06625) filler metal,
also qualified for depositing a corrosion resistant weld metal overlay using alloy 825 (UNS
N08065) filler metal, when the carbon steel base metal has the same P-No. as the base metal
qualified by the WPS?
Reply (2): No. See QW-256.1 and QW-404.37.
Interpretation: IX-10-19
Subject: QW-2004. - Procedure Qualification, Corrosion Resistant Weld Metal Overlay
Date Issued: November 17, 2010
7/28/2019 ASME IX (Interpretação IX 01-14 á IX-10-20 )
http://slidepdf.com/reader/full/asme-ix-interpretacao-ix-01-14-a-ix-10-20- 34/34
Page 34 sur 34
File: 09-2143
Background: A corrosion resistant weld metal overlay was applied to P-No.3 base metal with
WPS qualified for the SAW process using an unassigned strip filler metal, with resulting depositchemistry nominally matching F-No.43 filler metal. It is later determined a greater thickness of
corrosion resistant weld metal overlay or a repair to the overlay is needed. An alternate WPS is
proposed for depositing the weld metal overlay to increase the overlay thickness or perform the
repairs. The alternate WPS was qualified using a different welding process, applying SFA-5.11
ENiCrFe-7 filler metal to produce a corrosion resistant weld metal overlay with a depositchemistry nominally matching F-No.43 on P-No.3 base metals.
Question: Is any WPS qualified for depositing a corrosion resistant weld metal
overlay with a known chemistry, also qualified for applying additional layers or repairs
to an existing corrosion resistant overlay surface having a nominally matching
chemistry?
Reply: Yes.
Interpretation: IX-10-20
Subject: QW-405.3
Date Issued: November 18, 2010
File: 10-1489
Question: When a welder qualifies with the vertical up progression on weld coupons in the 3G,5G, or 6G test positions, is that welder qualified to weld with the vertical down progression when
QW-405.3 is a performance qualification essential variable?
Reply: No.