asme sec ix int (1989)

Section M - Interpretations No. 30 IX-89-100R, IX-92-01

Interpretation: IX-89-100R

Subject: Section E, QW-202.2 and QW-451

Date Issued January 2, 1991

File: BC90-663

Question: A procedure qualification in a test coupon of 1V2 in. thickness has been qualified to the requirements of QW-202.2(a) with the exception of notch toughness. A second Procedure Qual- ification with identical essential and supplementary essential variables, is tested for notch toughness only, in a test coupon of 3/16 in. thickness. Do the above two Procedure Qualifications support a WPS to weld b l e metal 3/16. in. to 8 in. in thickness and deposited weld metal up to 8 in. in thickness where notch toughness is required?

Reply: Yes.

Interpretation: IX-92-01

Subject: Section E, QW-306 and QW-405.4, Combination of Welding Processes, and Change in Vertical Welding

Date Issued: October 7, 1991

File: BC90-501

Question (1): When a procedure is qualified in the vertical position using the GTAW machine welding process, is a change in the direction of travel from uphill to downhill (or vice versa) an essential variable?

Reply (1): Yes.

Question (2): Are the essential variables listed in QW-360 for welding operator performance qualifications using machine welding equipment applicable to welding operators who are being qualified to deposit hard-facing weld metal overlays using the gas tungsten arc-machine welding process?

Reply (2): Yes.

NOTE: The answers to your questions are based on the 1991 Addenda.

261

COPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling ServicesCOPYRIGHT American Society of Mechanical EngineersLicensed by Information Handling Services

IX-92-02, JX-92-03 Section IX - Interpretations No. 30


Subject: Section IX, QW-382; Hard-Facing Weld Metal Overlay (Wear Resistant)


File: BC90-518

Question: Is welding position an essential variable for welding operators who are being qualified to deposit hard-facing weld overlays using the gas tungsten arc-machine welding process?

Reply: Yes.

NOTE: The answer to your question is based on the 1991 Addenda.

Interpretation: I)<-92-03

Subject: Section IX, QW-216; Hard-Facing Overlay

Date Issued: October 7,1991

File: BOO-523

Question (1): Must more than the two faces of hard-facing exposed by sectioning be examined in accordance with QW-216.2 when the welding is done in the 5G or 6G position?

Reply (1): Yes.

Question (2): If more than two faces of the hard-facing exposed by sectioning per QW-216.1 are required to be examined, from what location around the test coupon must they be removed?

Reply (2): See QW-462.5.

Question (3): Must the hard-facing overlay be liquid penetrant examined after surface conditioning the overlay to the minimum thickness specified in the WPS per QW-216.1?

Reply (3): Yes. See QW-453.


262


Section IX - Interpretations No. 30 Ix-92-04, Ix-92-05


Subject: Section IX, QW-382; Hard-Facing Weld Metal Overlay (Wear Resistant)

Date Issued October 7, 1991

File: BC90-530

Question (1): When qualifying welding operators in the 6G position on pipe for depositing hard-facing weld metal overlay, is the minimum required length of the weld deposit 360 deg. around the plate?

Reply (1): Yes.

Question (2): When qualifying welding operators in the 6G position on pipe for depositing hard-facing weld metal overlay, is the minimum deposit required the lesser of 1 in. or the deposit width specified on the WPS?

Reply (2): Yes.



Subject: Section IX, QW-453 and QW-462.5; Qualification Thickness and Test Specimens for Hard-Facing Overlay and Corrosion-Resistant Overlay


File: BC90-632

Question (1): When a chemical analysis is done on hard-facing welded in the 5G or 6G position, must the analysis be taken from more than one location?

Reply (1): Yes. See QW-453

Question (2): Must more than the two faces of hard-facing exposed by sectioning be examined in accordance with QW-216.1 when the welding is done in the 5G or 6G position?

Reply (2): Yes. See QW-453 and QW-462.5

Question (3): Is more than one hardness reading required to be taken on hard-facing weld in the 5G or 6G position per QW-216.1?

Reply (3): Yes. See QW-453.


263


Ix-92-06, Ix-!mo7 Section IX - Interpretations No. 30


Subject: Section IX, QW-214; Corrosion-Resistant Weld Metal Overlay


File: BC91-054

Question (1): If an overlay procedure is tested on 1 in. thick plate, would the minimum nominal base metal thickness qualified be 1 in.?

Reply (1): Yes.

Question (2): If an overlay procedure is tested on less than 1 in. plate, is the minimum nominal base metal thickness qualified the thickness tested and the maximum thickness qualified unlimited?

Reply (2): Yes.



Subject: Section IX, QW-201; Welding Procedure Qualifications, Manufacturer’s or Con- tractor’s Responsibility

Date Issued October 7,1991

File: BC91-156

Question (1): If Company A reviews and approves Section IX qualified WS’s submitted by Companies B and C for a given project, may Company A use Company B and C‘s WPS’s?

Reply (1): No.

Question (2): If Company A reviews and approves Section DL qualified WPS’s submitted Com- panies B and C for a given project, may Company A authorize Company B to use Company C‘s WPS’s on that project?

Reply (2): No.


Section IX - Interpretations No. 30 M-92-08, M-92-09, M-92-10


Subject: Section IX, QW-422; Classification of P-Numbers


File: BC91-257

Question: SA-789 S31803 is listed in QW-422 as P-No. 1OH Gr. 1. Can SA-240 S31803 be considered P-No. 10H Gr. 1 since it only differs in product form?

Reply: No.

Interpretation: I>(-92-09

Subject: Section IX, QW-103.1; Welding Responsibility


File: BC91-260

Question: May a contractor provide his qualified welding procedure specifications, for use by his subcontractors, to perform welding in accordance with the requirements of ASME BPV Code Section IX?

Reply: No.


Subject: Section IX, QW-160; Guided-Bend Test Specimens


File: BC91-261

Question (1): Does Section IX impose a specific temperature at which the specimen must be during the bend test?

Reply (1): No.

Question (2): May the test temperature of the specimen be any temperature between ambient and the maximum allowable temperature imposed by ASh4E Section 111 for that specific material?

Reply (2): No.

265


M-92-11, M-92-12 Section IX - Interpretations No. 30


Subject: Section IX, QW-180, QW-202.2, and QW-202.4; Groove and Fillet Welds, Dissim- ilar Base Metal Thicknesses


File: BC91-263

Question (1): In qualifying a tube-to-tubesheet weld procedure for a partial penetration groove weld, do paragraphs QW-202.2 and QW-202.4 apply?

Reply (1): Yes.

Question (2): In qualifying a tube-to-tubesheet weld procedure for a fillet weld, do paragraphs QW-180 and QW-202.2 apply?

Reply (2): Yes.


Subject: Section IX, QW-322; Expiration and Renewal of Qualifications of Welders


File: BC91-264

Question: May a welder that has qualified on 2 in. and 6 in. diameter stainless steel pipe maintain qualification by making one butt weld on 6 in. stainless steel pipe?

Reply: Yes.

266


Section IX - Interpretations No, 30 M-92-13, E-92-14, M-92-15


Subject: Section IX, QW-195; Liquid Penetrant Examination


File: BC91-278

Question: Must the production weld overlay surface be examined by the liquid penetrant method in accordance with QW-195 to qualify the WPS as required by QW-214.2 and QW-216.2(a)?

Reply: ASME Section IX does not specify production weld requirements.


Subject: Section IX, QW-150; Tension Tests


File: BC91-279

Question: Does ASME Section IX specify any method of rounding off observed, or calculated values, for tensile specimen test results?

Reply: No.


Subject: Section IX, QW-303 and QW-461.9; Performance Qualification Position and Di- ameter Limitations


File: BC91-293

Question: IS a welder who has qualified on a 2 in. diameter coupon in the 5G position, and a 6 in. diameter coupon in the 2G position, qualified to weld 1 in. and larger dismeter pipe in any position?

Reply: No.

267


IX-9216, IX-92-17 Section IX - Interpretations No. 30


Subject: Section IX, QW-103.1 and QW-200.2@); Manufacturer’s or Contractor’s Respon- sibility


File: BC91-314

Question: Does paragraph QW-103.1 allow a manufacturer or contractor to subcontract the welding of procedure qualifications to a testing laboratory where the welder is an employee of the subcontractor, and the manufacturer or contractor does not have a representative present to provide full supervision and control during the qualification?

Reply: No.


Subject: Section DL, QW-202 and QW-301; Procedure and Performance %e of Tests Re- quired


File: BC91-315

Question (1): A PQR was generated in 1987 by qualifying a WPS to QW-201.1 and QW-201.2 of Section IX of the ASME Code. May these documents be used in ASME Code fabrication today?

Reply: Yes.

Question (2): In 1987, welders were qualified to the above WPS in accordance with QW-301.1 and QW-301.2 of Section IX of the ASME Code. May these welders be used in ASME Code fabrication today?

Reply: Yes.

268


Section IX - Interpretations No. 30 IX-92-18, IX-92-19


Subject: Section IX, QW-423 and QW-442; Alternate Base Materials for Welder Qualifi- cation, A-Numbers


File: BC91-389

Question (1): Is a welder, who has qualified using mild steel base material P-No.1 to P-No.1 using either the GMAW, GTAW, or PAW welding processes and filler metal F6/A1, qualified to weld austenitic stainless steel P-No.8 to P-No.~?

Reply (1): No.

Question (2): Is the A number an essential variable for a welder performance qualification test?

Reply (2): No.


Subject: Section IX, QW-151.1 and QW-451; Procedure Qualification Thickness Limits and Test Specimens


File: BC91-390

Question: May two single full thickness specimens, taken from material greater than 1 in. thickness, satisfy the tension test size and quantity requirements of QW-451 and QW-151.1?

Reply: Yes.

269


M-92-20, IX-92-21 Section IX - Interpretations No. 30


Subject: Section IX, QW-218; Applied Linings


File: BC91-396

Question (1): In qualifying a WPS for attachment of applied linings in accordance with QW- 218, are bends and tensile tests required?

Reply (1): No.

Question (2): Given that the variables in QW-250 apply, is the joint between the applied linings regarded as a groove weld?

Reply (2): No.


Subject: Section IX, QW-404.12; Change in Filler Metal


File: BC91-397

Question: May existing WPS’s using the SMAW process with E7018 electrodes which were qualified at - 50°F utilizing the essential and supplementary essential variables of QW-253 be revised to specify E7018-1 classification without requalification?

Reply: Yes.

270


Section IX - Interpretations No. 30 IX-92-22, M-92-23


Subject: Section IX, QW-322; Ekpiration and Renewal of Welder Qualification


File: BC91-425

Question (1): Does a welder who is qualified for a given process for both groove and corrosion- resistant weld metal overlay maintain his qualification for groove welding if, for more than six months, the welder only does corrosion-resistant weld metal overlay welding?

Reply (1): Yes.

Question (2): Does the non-Code welding work need to be examined by NDE to maintain the welder's qualification?

Reply (2): No.

Question (3): May a welder maintain his qualification by welding on temporary attachments without any NDE?

Reply (3): Yes.


Subject: Section IX, QW-301; Performance Tests

Date Issued: December 20, 1991

File: BC90-494

Question: In accordance with QW-301, may welders and welding operators, simultaneously qualified by more than one contractor, maintain qualifications with each participating contractor by maintaining qualification with any participating contractor?

Reply: Yes.

NOTE: The answers to your questions are based on the 1991 Addenda to Section IX.

271


IX-92-24, IX-92-25 Section IX - Interpretations No. 30


Subject: Section IX, QW-183 and QW-184; Macro Examination - Procedure and Perform- ance

Date Issued December 20, 1991

File: BC91-280

Background A tube-to-tubesheet weld is made with an automatic process with no filler metal. The tube is completely through the tubesheet and flush with the outside of the tubesheet. The weld is considered a seal weld and not a pressure retaining weld.

Question (1): Do procedure and performance qualifications for the seal weld require examination in accordance with QW-183 and QW-184, respectively?

Reply (1): Section IX does not specifically address qualification of seal welds or welderhvelding operators making seal welds.

Question (2): Is a seal weld a fillet weld?

Reply (2): The type of weld required for a seal weld is specified by other Sections of the Boiler and Pressure Vessel Code.

Question (3): If other Sections of the BPV Code specify the seal weld to be either a full penetration weld, a partial penetration weld, or a fillet weld, does Section IX require the procedure to be qualified in accordance with.QW-202.2(a), (b), or (c), respectively, and the welderhvelding operator qualified in accordance with QW-300?

Reply (3): Yes.


Subject: Section IX, QW-ZOO.2@) and QW-300.2; Manufacturer's and contractor's Respon- sibility

Date Issued December 20,1991

File: BC91-415

Question (1): According to QW-200.2(b), may a manufacturer or contractor provide guidelines for a procedure qualification, and a WPS, and a welder to a test lab, then audit on random basis and cerhfy the procedure?

Reply (1): No.

Question (2): According to QW-300.2, may a manufacturer or contractor provide acceptance and rejection criteria, a WPS, and a welder performance for a qualification test to a test lab then audit on a random basis and accept responsibility for the performance qualification test?

Reply (2): No.

212


Section IX - Interpretations No. 30 IX-92-26, IX-92-27, IX-92-28


Subject: Section E, QW-306; Combination of Welding Process

Date Issued December 20, 1991

File: BC91-470

Question: When a welder has been qualified using a single welding process and later takes a test using a combination of welding processes, which includes the previously qualified process, and does not pass, does this affect the earlier qualification?

Reply: No.


Subject: Section 11, Part C, SFA 5.4 - Table 4

Date Issued: December 20,1991

File: BC91-471

Question: Should the footnotes a, b, and c of Table 4 read as follows: a) See Section 10 and 14.2 b) See Section 11.1 and 14.3 c) See Section 11.2 and Figs. 1 and 3?

Reply: Yes.


Subject: Section IX, QW-281.2(f); Corrosion-Resistant Weld Metal Overlay - Essential Variables

Date Issued: December 20,1991

File: BC91-472

Question: May a corrosion-resistant weld metal overlay procedure qualification test joint 2 in. in thickness that was postweld heat treated (PWHT) for 2 hr (1 hr per in.) qualify a PWHT of a 5 in. thick material for 5 hr (1 hr per in.)?

Reply: No.

273


Section IX - Interpretations No. 31


Subject: Section IX,

IX-92-29, IX-9230

QW-151.3 and QW-462.1, Tension Tests and Test Specimens

Date Issued February 28, 1992

File: BC91-473

Question (1): For plate coupon, welded by one process and procedure, may either reduced- section specimens conforming to the requirements given in QW-462.l(a) or turned specimens conforming to the requirements given in QW-462.l(d) be used for tension test specimens?

Reply (1): Yes.

Question (2): For a 2 in. plate test coupon welded with one process and procedure, may two turned 0.505 tensile specimens conforming to QW-462.l(d) be used for each tension test?

Reply (2): Yes.

Question (3): In performing tension tests on a 2 in. test coupon welded with one process and procedure using turned specimens conforming to QW-462.l(d) and .spaced in accordance with QW- 151.3(b), is it acceptable if portions of weld deposit are not included in the tension tests?

Reply (3): Yes.


Subject: Section IX, QW-200.1, General Welding Procedure Qualifications

Date Issued: February 28, 1992

File: BC91-587

Question: Does QW-2OO.l(c) require that there be a history of changes such as margin notes or other record documenting what specific changes were made in the essential, nonessential, or supplemental variables each time a WPS is revised?

Reply: No.

279


E-92-31, E-92-32, E-92-33 Section IX - Interpretations No. 31


Subject: Section IX, QW-310, Qualification of Test Coupons

Date Issued February 28,1992

File: BC91-613

Question: May a welder repair the root pass from the root side of a Welder Performance test coupon and be qualified to weld without backing?

Reply: No.


Subject: Section IX, QW-351, General Welding Variables for Welders


File: BC91-631

Question: When using a single test coupon for welder performance qualifications, is it necessary to determine the deposited weld metal' thickness for each process the welder uses to weld the single test coupon?

Reply: Yes.


Subject: Section 1% QW-407.4, Postweld Heat Treatment


Fide: BC91-614

,Question: Can a PQR conducted on a 2 in. thick ba& metal with notch toughness required and. PWHT above the upper transformation temperature bei.used to support a WPS on a '/z in. thick base metal with all other essential variables, including nirtch toughness, unchanged?

Reply: No.

280


section IX - Interpretations No. 31


Subject: Section IX, QW-451, Groove-Weld Procedure Qualification Thickness Limits and Test Specimens


File: BC91-586

Question (1): Tables QW-451.1 and QW-451.2 state limits for base metal and deposited weld metal thickness. Where QW-250 lists variables applicable to thickness, do these variables supersede the limits of QW-451.1 and QW-451.2?

Reply (1): Yes.

Question (2): Tables QW-451.1.and QW-451.2 do not give a minimum deposited weld metal thickness. When the variable QW-403.6 states a minimum base metal thickness, does this minimum also apply to deposited weld metal?

Reply (2): No.


Subject: Section IX, QW-452.1, Transverse Bend Test for Performance Qualification Thick- ness Limits and Test Specimens

Date Issued: February 28,1992

File: BC91-277

Question: Even though QW-484 does not provide space for documenting conformance of the test coupon groove with the requirements of QW-452.1, Notes 8 or 9, does a signed ;Record of Welder/Welding Operator Performance Qualification form indicate that these requirements have been met?

Reply: Yes.

Note: However, at the present moment, QW-484 is under consideration for possible revision.

281


Ix-!n-36, Ix-92-37 section IX - Interpretations No. 31


Subject: Section IX, QW-452.1, Transverse Bend Test for Perfodance Qualification Thick- ness Limits and Test Specimens


File: BC91-616

Interpretation IX-83-90 states:

“Question (1): Can a double-beveled plate, 1 in. thick with each beveled groove being % in., be welded by a welder qualified to weld a weld metal deposit of 0.864 in.?

Reply (1): No.

Question (2): Can the same joint as above be welded by two individual welders, each with a deposited weld metal qualification of 0.864 in., provided each welder does not exceed 0.864 in.?

Reply (2): Yes.”

- Question: Can a double-beveled plate, 1% in. thick with each beveled groove being V, in., be welded by two individual welders, one on &ch side of. the plate and each with a deposited weld metal qualification of 0.864 in., provided each welder does not exceed 0.864 in.?

Reply: Yes.


Subject: Section IX, QW-151 and QW-451, Tension Test Specimens and Groove-Weld Pro- cedure Qualification Thickness Limits and Test Specimens


File: BC92W

Question (1): Do paragraphs QW-151.1, QW-151.2, QW-151.3, and QW-151.4 define the number of tension test specimens. required for each tension test as specified in QW-451.1 and QW- 451.21

Reply (1): Yes.

Question (2): Do Tabies QW-451.1 and QW451.2 specify the minimum required number of tension and guided bend tests needed for various groove welded coupons, regardless of diameter when pipe or tube , i s used?

Reply (2): Yes.

282




Subject: Section IX, QW-200, General Weldihg Procedure Qualifications

Date Issued: May 28,1992

File: BC91-630

Background: A welder was monitored while performing production welding and was found to be welding above the amperage range listed on the WPS for a specific electrode diameter (SMAW process).

. Question: Does Section DL require the WPS to be amended or requalified, as applicable, when a variable is not followed such as welding above or below the established amperage or voltage range listed on the WPS?

Reply: The disposition of nonconformances is not withii the scope of Section IX.


Subject: Section IX, QW-300.3, S&ultaneous Qualification of Welders

Date Issued May 28,1992

File: BC92-121

Background Three contractors desire to use the same WPS and simultaneously qualify welders in accordance with QW-300. Each contractor has a pre-existing PQR covering the scope of the WPS. Each contractor’s name and corresponding PQR dumber is entered on the WPS and separate signature blocks are provided for each contractor. This method of weld procedure and welder performance qualification and operational controls is described in the QC system for each contractor.

Question (1): May the WPS described be used to simultaneously qua@ welders?

Reply (1): Yes.

Question (2): May the WPS described be used for production welding by all three contractors?

Reply (2): Yes.

283


Ix-92-40, Ix-9241 Section IX - Interpretations No. 31


Subject: Section- IX, QW-409.1, Electrical Characteristics


File: BC92-110

Question (1): When notch toughness tests are a requirement, and option QW- 409.1(a) is chosen 8s a means Of determining heat input, must the actual voltage, amperage, and travel speed used be recorded on the PQR?

Reply (1): Yes.

Question (2): When notch toughness tests are a r d e m e n t , and option QW-409.1 (b), bead size, is chosen as a means of determining heat input, mustithe actual bead width and height deposited to ascertain “Volume of Weld Metal” deposited be recorded on the PQR?

Reply (2): Yes.

Question (3): May either of the above methods be substituted for the other, when writing a WPS that has notch toughness requirements, by estimathg the values of the “other” method [Le., using option (a) (with estimated amps, volts, and travel speed) when option (b) (actual Volume of Weld Metal) was used when the test coupon was welded]?

Reply (3): No.

Question (4): When notch toughness tests are a reqpirement, and option QW-409.1 (b), bead size, is chosen as a means of determining heat input, any electrode diameter be used as long as the volume of deposited weld metal, which,is recorded on the PQR, is not exceeded?

Reply (4): Yes.


Subject: Section IX, QW-461.9, Performance Qwifications - Position and Diameter Lim- itations

Date Issued: May 28, 1992

File: BC92-035

Question: Are welders qualified on plate in 2G, 3G, and 4G positions qualified to weld on pipe less than 24 in. OD in the 5G position?

Reply No.

284




Subject: Section IX, QW-200.4(a), Combination of Welding Processes

Date Issued: September 30, 1992

File: BC92-011

Question: May a single set of weld metal impact test specimens be used to qualify two or more processes or procedures?

Reply: Yes, provided weld metal from each process or procedure is included in each specimen.


Subject: Section IX, QW-492, Definition of Machine Welding

Date Issued September 30, 1992

File: BC92-100

Question: Is a GMAW spot welding process in which all variables are preset, except for place- ment of the nozzle against the material and activation of the trigger by the operator, considered machine welding?

Reply: Yes.


Subject: Section IX, QW-251.4 and QW-280, Special Processes


File: BC92- 168

Question (1): According to the 1990 Addenda of Section IX, are there any supplementary essential or nonessential variables required to be addressed in a WPS for the special processes described in QW-280?

Reply (1): No.

Question (2): According to the 1991 Addenda of Section IX, are there any supplementary essential or nonessential variables required to be addressed in a WPS for the special processes described in QW-251.4?

Reply (2): No.

291


IX-92-45, IX-92-46, IX-92-47 Section IX - Interpretations No. 32


Subject: Section IX, QW-303.2 and QW-452.4, Fillet Welds


File: BC92-238

Question: When Section IX requires separate performance qualification for fillet welds on small diameter pipe, does the same requirement apply to hngitudinal fillet welds (such as the attachment of gussets in the longitudinal direction)?

Reply: No.


Subject: Section IX, QW-303.3 and QW-461.9, Special Positions for Performance Qualifi- cation


File: BC92-265

Question: Is a welder who is qualified to weld groove welds in a special orientation also qualified to weld in the 1G position?

Reply: Yes.


Subject: Section IX, QW-322.2, Renewal of Qualification


File: BC92-266

Question: May the renewal of welder and welding operator performance qualification be done on production work?

Reply: Yes.

292


Section IX - Interpretations No. 32 IX-92-48, 1X-92-49, IX-92-50


Subject: Section IX, QW-466, Test Jigs


File: BC92-267

Question: In determining the appropriate test jig-dimensions of QW-466 to use for bend tests, is it permissible to use the dimensions corresponding to P-No. 35 material when the filler metal is a F-No. 36, even though the base material is other than a P-No. 35 material?

Reply: No.


Subject: Section IX, QW-466, Test Jigs


File: BC92-268

Question: In qualifying a welding procedure which utilizes a F-No. 36 filler of ER CuAI-AI (SFA 5.7) for corrosion resistant weld metal overlay of a P-No.1 carbon steel material, is the required mandrel diameter for side bend testing 4t as determined from column A of QW-466.1, QW-466.2 or QW-466.3?

Reply: Yes.


Subject: Section IX, QW-403.6, Base Metals

Date Issued: September 30, i992

File: BC92-217

Question: If Heat Affected Zone (HAZ) notch toughness requirements are applicable, does QW-403.6, base metal thickness requirements, apply?

Reply: Yes.

293




Subject: Section IX, QW-451.3 and QW-462.4, Fillet Weld Test Specimens-Procedure, and QW-452.4, Performance Qualification Thickness Limits and Test Specimens


File: BC92-276

Question: If a welder performs a procedure qualification per QW-462.4(d) using 2 in. NPS pipe and passes, is he qualified for all diameters as outlined in QW-451.3?

Reply: No, per QW-452.4 he is qualified down to 1 in. O.D.


Subject: Section IX, QW-462.5, Corrosion-Resistant Overlay Claddinmard-Facing Overlay, Chemical Analysis Specimen

' Date Issued: December 14, 1992

File: BC92-252

Question: May only one chemical analysis specimen be removed from the vertical portion of a 6G positioned hard facing welded PQR coupon when the weld travel direction is reversed every other weld pass resulting in weld beads deposited in vertical-upward and vertical-downward direction?

Reply: Yes, provided a chemical analysis represents each vertical travel direction.


Subject: Section IX, QW-452.1, Groove Weld Procedure Qualifications Thickness Limits and Test Specimens


File: BC92-254

Question: A welder has qualified on 3 in. O.D. '/z in. wall pipe in the 1G position. He has also qualified on 1 Y4 in. O.D. Y8 in. wall pipe in the 6G position. Is he qualified to weld 1 Y4 in. O.D. Y2 in, wall in all positions?

Reply: No.

294




Subject: Section IX, QW-214.3, Corrosion-Resistant Weld Metal Overlay


File: BC92-305

Question: Pri0r to the 1991 Addenda, did QW-214.3 address the number of chemical analysis tests required for Corrosion Resistant Weld Metal Overlay utilizing the GTAW Machine Welding Process in the 5G or 6G position?

Reply: No,


Subject: Section IX, QW-103.2, Records


File: BC92-307

Question: Is it acceptable to satisfy the requirements of QW-103.2 for record maintenance, certification, and accessibility by means of an electronic storage medium, e.g., computer database?

Reply: Section IX does not address the media in which records are required to be maintained.

Interpretation: I><-92-56

Subject: Section IX, QW-451.3, Fillet Weld Tests


File: BC92-308

Question: A welder performs a fillet weld procedure qualification in accordance with QW- 451.3, which fails; therefore; neither the procedure nor the welder are qualified. Is it permissible for the welder to then perform a successful groove weld procedure qualification test and be qualified for grooves and fillets?

Reply: Yes.

295


IX-92-57, IX-92-58


Subject: Section IX, 1989 Ec dition A91 Addenda, QW-253, mum Interpass Temperature


QW-256, and QW-406.3, Maxi-


File: BC92-354

Question: According to the 1991 Addenda of Section IX, is it permissible to revise a WPS by increasing interpass temperature to more than 100°F above that recorded on the supporting PQR when supplementary essential variables do not apply without requalificzhion?

Reply: Yes.


Subject: Section IX, QW-364, Friction Welding


File: BC92-357

Question: For performance qualification, is a friction weld operator required to requalify for each seat size and base metal combination to be qualified to operate the machine?

Reply: Yes.

296



Errata

Section IX Interpretation IX-92-18 was misprinted in the Boiler and Pressure Vessel Interpretations Volume 30 and Voiume 31. The correct interpretation is printed below.


Subject: Section IX, QW-423 and QW-422, Alternate Base Materials for Welder Qualifi- cation, A-Numbers


File: BC91-389

Question (1): Is a welder, who has qualified using mild steel base material P-No. 1 to P-No. 1 using either GMAW, GTAW, or PAW welding processes and filler metal F6/A1, qualified to weld austenitic stainless steel P-No. 8 to P-No. 8?

Reply (1): Yes.

Question (2): IS the A-number an essential variable for a welder performance qualification test?

Reply (2): No.

297


Section IX - Interpretations No. 33 E-92-59, E-92-60


Subject: Section IX, QW-306, Combination of Welding Processes, QW-452.1 and QW-452.3, Performance Qualification Thickness Limits and Test Specimens


File: BC92-206

Background: The combination of welding processes and pipe diameters listed below were used for performance qualification:

(1) 2 in. Sch. 80 (218) pipe with open butt using GTAW process. (2) 2 in. Sch. 160 (.343) pipe with consumable insert and fill pass using the GTAW process and the remainder welded with SMAW process. (3) 6 in. XXS (364) using SMAW process with backing.

Question: Using the combinations listed in the Background, in accordance with QW-306, Note '

2 of QW-452.1 to determine maximum thickness qualified, and QW-452.3 for minimum diameter qualification, is the welder qualified to weld on unlimited thickness and diameters above 1 in., using either an open butt joint or a consumable insert with the root layer deposited with the GTAW process and the remainder deposited with the SMAW process?

Reply: Yes.


Subject: Section IX, QW-214, Corrosion-Resistant Weld Metal Overlay


File: BC92-421

Question: When corrosion-resistant weld metal overlay is deposited in a base material groove to a depth that is not included in the design calculations must the deposit be tested as a groove weld?

Reply: No.

303


M-92-61, JX-92-62, M-92-63 Section IX - Interpretations No. 33


Subject: Section 11, Part C, SFA 5.13, Specification for Solid Surfacing Welding Rods and Electrodes


File: BC92-422

Question: May powdered filler metal be classified under Section 11, Part C, SFA 5.13?

Reply: No.

Interpretation: !X-92-62

Subject: Section IX, QW-408.2, Shielding Gas


File: BC92-425

Question (1): When changing shielding gases of a specific mixture, is it permissible to adjust the nominal percentage(s) of the minor component(s) by +/- 20% without requalifying the procedure?

Reply (1): No.

Question (2): In addition, when the absolute value of +/- 20% times the nominal percentage of a minor component is less than 1%, would it be permissible to make a +/- 1% adjustment to the gas mixture?

Reply (2): No.


Subject: Section IX, QW-153.1, Tensile Strength


File: BC92-452

Question: A welding procedure qualification test coupon is welded using P-No. 23, SB-209, alloy 6061 aluminum base material in the ("0") temper. After welding the test coupon, it is subjected to a "T-6" heat treatment. To establish acceptability of tensile tests per QW-153.1, may the tensile requirements of QW-422 for SB-209, alloy 6061 (T4 and T6 tempers in the welded condition) be used?

Reply: No.

304


Section IX - Interpretations No. 33 M-92-64, M-92-65, IX-92-66


Subject: Section IX, QW-322, Expiration and Renewal of Qualification


File: BC92-464

Background: A welding operator is in the process of renewing hisher qualification using machine GTAW welding equipment. During the process the machine malfunctions and burns through the root pass of the test coupon. No operator error is noted. Following the malfunction, the test coupon is repaired using a manual GTAW process. After the repair the machine welding equipment is used to complete the rest of the test coupon.

Question: May a welding operator performance test coupon being welded for qualification or renewal be repaired prior to testing using a manual welding procedure?

Reply: No.

Intepretation: IX-92-65

Subject: Section IX, QW-423.1, Alternate Base Metals for Welder Qualification


File: BC93-148

Question: In QW-423.1, is P-No. 42 included in P-No. 4X?

Reply: Yes.


Subject: Section IX, QW-201, Manufacturer’s or Contractor’s Responsibility


File: BC93-377

Background: Company A and Company B merge divisions to form a new Company, C.

Question (1): May the new Company, C, use PQRs and WPSs developed previously by Company A and Company B?

Reply (1): Yes, provided operational control is in accordance with QW-201.

Question (2): May the new Company, C, use the central materials laboratoq of Company A to develop WPSs and PQRs?

Reply (2): Yes, provided operational control is in accordance with QW-201.

305




Subject: Section IX, QW-201, Manufacturer’s or Contractor’s Responsibility


File: BC93-391

Question: In a contract involving piping construction work, our company subcontracted the piping prefabrication work to a subcontractor. This subcontractor is managed by our company but has a different name. The subcontractor proceeded to qualify welding procedures which were conducted in the presence and with the approval of our company’s welding engineer who monitored the welding of the test coupons and signed approval on the PQRs. The Quality Control System of the subcontractor and our company fully describe the operational control of procedure qualifications. Was our client right in rejecting the use by our company of the subcontractor qualified welding procedures for the erection work of the prefabricated piping?

Reply: This is a contractual issue, which ASME does not address.

interpretation: iX-92-68

Subject: Section IX, QW-306, Combination of Welding Processes, and QW-451, Groove Weld Procedure Qualification Thickness Limits and Test Specimens

Date Issued: June 30, 1993

File: BC92-011A

Question: In using a single set of test specimens to qualify two or more processes or procedures, does Section IX specify a minimum weld deposit thickness to be included in each test specimen from each of the processes or procedures?

Reply: No.


Subject: Section IX, QW-409.1, Electrical Characteristics

Date Issued: June 30, 1993

File: BC92-011B, BC92-228, BC92-353

Question: Is it the intent of QW-409.1 that the heat input, to be recorded on the PQR, be calculated based on the parameters used at the location where the impact specimens were removed?

Reply: Yes.

306


Section IX - Interpretations No. 34 M-92-70


Subject: Section IX, QW-403.5, Base Metals


File: BC92-450

Question (1): When a procedure qualification with supplemental notch toughness requirement is conducted with one P-Number material having multiple certifications in different Group Numbers, are WPSs qualified for all combinations of the Group Numbers?

Reply (1): Yes.

Question (2): In the above question, does one set of HAZ impact specimens, when required, satisfy the requirements of Section IX?

Reply (2): Yes.

Question (3): When a procedure qualification with supplemental notch toughness requirements is conducted with two materials of different P-Numbers each having multiple certifications in different Group Numbers, are WPSs qualified for all combination of the multiple certified Group Numbers of the first P-Number material to the multiple certified Group Numbers of the second P- Number material?

Reply (3): Yes.

Question (4): In the above question, does one set of HAZ impact specimens from each P- Number material, when required, satisfy the requirements of Section IX?

Reply (4): Yes.

Question (5): In Question (3), are materials from the multiple certified Group Numbers qualified for welding a P-Number material to itself?

Reply (5): No.

311


Section IX - Interpretations No. 34 IX-92-71, IX-92-72

Interpretation: IX=92=71

Subject: Section IX, QW-302.4, Visual Examination

Date Issued: Sepember 22, 1993

File: BC93-365

Question: Are welders or welding operators qualified in accordance with Section IX prior to the 1992 addenda, for which the results of visual examination required by QW-302.4 were not documented on the WPQ, required to requalify in order that visual examination results may be documented?

Reply: No.


Subject: Section IX, QP 1-453 and 1-381(c), Corrosion Resistant Weld Metal Overlay, QP QW-461.9, Performance Qualification


File: BC93-392

Question (1): May welder qualifications for corrosion-resistant overlays per QW-381 and QW- 453 be made on plate, when qualifying for welding on pipe/tubes parallel to the axis of the pipe/ tubes?

Reply (1): Yes.

Question (2)(a): Should the side bends required in QW-453 consist of the base metal plus overlay thickness, after surface conditioning per Note 4 of QW-453?

Question (2)(b): When the overlay test specimens are less than '/8 in. thick, may the side bend specimen width be the test specimen thickness?

Question (2)(c): May the edges of the overlay be outside of the bent area as long as at least a 1 '/z in. width of overlay and HAZ are completely within the bend?

Reply (2)(a): Yes.

Reply (2)(b): Yes.

Reply (2)(c): Yes.

Question (3): May QW-461.9 Groove-Pipe be used for the position essential variable rules for welder qualifications on corrosion-resistant overlap?

Reply (3): Yes.

312


Section IX - Interpretations No. 34 M-92-73, M-92-74, IX-92-75


Subject: Section IX, QW-321.3, Welder Qualification After Further Training or Practice


File: BC93-468

Background: A welder performance qualification test plate fails to meet the radiographic requirements for qualification. After further training a new performance qualification test plate is welded.

Question: May the new test plate be evaluated by bend testing?

Reply: Yes.


Subject: Section IX, QB-402.1, Base Metals


File: BC93-474

Question: When brazing material used for a procedure qualification test is not listed in QB- 422 or Appendix C, but is similar to P-No. 107 or S-No. 107 materials listed in QB-422 or Appendix C, may this material be considered as a P-No. 107 or S-No. 107 material in accordance with QB- 402.1?

Reply: No.


Subject: Section IX, QW-200.4@), Combination of Welding Procedures


File: BC93-490

Question: When writing multi-process welding procedures per QW-200.4(a), where the tube wall thickness is less than 1 in., using a separate qualification for the root deposit only, must the root deposit qualification coupon be Y2 in. minimum thickness as stated in QW-200.4(b)?

Reply: No.

3 13


IX-92-76, IX-92-77 Section IX - Interpretations No. 34


Subject: Section IX, QW-462, Test Specimens


File: BC93-515

Question: QW-462 defines W as “specimen width, in.” Is in. a minimum or maximum dimension requirement for preparing a reduced section tensile specimen?

Reply: No.


Subject: Section IX, QW-200.4, Combination of Welding Procedures, and QW-451.4, Fillet Welds Qualified by Groove Weld Tests


File: BC93-518

Background: A butt welding procedure qualification was completed on a pipe with E6010 electrode (F-No. 3) for the root pass and E7018 electrode (F-No. 4) for the remaining process.

Question (1): Will the above procedure qualification alone support a WPS to make a fillet weld with E-7018 electrodes (F-No.4) for all the passes for all fillet sizes on all base metal thicknesses when all the other essential variables under QW-253, SMAW process, are the same?

Reply (1): Yes.

Question (2): Will the above procedure qualification alone support a WPS to make a butt weld with E-7018 electrodes (F-No. 4) for all the passes including the root pass within the limits of qualification of QW-451.1 and within the limits of the essential variables under QW-253, SMAw process?

Reply (2): Yes.

314


Section IX - Interpretations No. 34 M-92-78, M-92-79


Subject: Section IX, QW-200.2(b), Welding Procedure Qualifications


File: BC93-561

Question (1): May a company subcontract weld procedure development and qualification including certification of the PQR without a company representative present to witness the welding, testing, and certification?

Reply (1): No.

Question (2): May a company subcontract weld procedure development and qualification including certification of the PQR with a company representative present to witness the welding, testing, and certification?

Reply (2): No.


Subject: Section IX - 1989 Edition, Addenda 91; QW-151.1, Tension Tests, Reduced Sec- tion-Plate, and QW-462.l(a), Test Specimens


File: BC93-583

Question (1): Is it permissible to reduce a plate test coupon thickness beyond removing the reinforcement to allow for parallel surfaces?

Reply (1): Yes.

Question (2): What percentage of the thickness is permissible to be removed for procedure qualification?

Reply (2): The minimum necessary to obtain parallel surfaces.

315


IX-92-80, IX-92-81 section IX - Interpretations No. 34


Subject: Section IX, QW-103, Responsibility, and QW-201, Manufacturer’s or Contractor‘s Responsibility


File: BC93-584

Question: When a company changes names during the course of time must all the histo] documents such as PQRs and WPQs be revised to show this new name?

Reply: No, provided there is documented traceability from the new company name to the WPSs and PQRs qualified under the old company name.


Subject: Section IX, QW-103.1 and QW-201, Manufacturer’s or Contractor’s Responsibility.


File: BC92-306

Question (1): According to Section IX, para. QW-201, is it permissible for a manufacturer or contractor to have the welding of the test weldments performed by another organization?

Reply (1): No.

Question (2): According to para. QW-201, is it permissible to subcontract the work preparation of test metal for welding and subsequent work on preparation of test specimens from the completed weldment, performance of nondestructive examination, and mechanical test, provided that the manufacturer or contractor accepts the responsibility for any such work?

Reply (2): Yes.

Question (3): If the manufacturer or contractor writes the WPS and the welder used to produce weldments to be tested for qualification of procedures are under full supervision and control of a representative of the manufacturer or contractor during the production of these test weldments, may the welder be an employee of another organization?

Reply (3): No.

316


Section IX - Interpretations No. 34 E-92-82, E-92-83


Subject: Section IX, Code Case 2141, Electrodes and Fluxes for Submerged Arc Welding, SFA 5.17 and SFA 5.23

Date Issued: November 22, 1993

File: BC93-434

Question (1): Does the “Manufacturer’s Data Report” in the Section IX Code Case 2141 mean the following: (a) Manufacturer’s Data Report required in PG-112 of SC I; (b) Data Report required in NCA-3770 of Section 111; (c) Data Report required in UG-120 of Section VIII, Div. 2; or (d) Manufacturer’s Data Reports required in AS-300 of Section VIII, Div. 2?

Reply (1): A Manufacturer’s Data Report form is any data report form that is required in an ASME Code Book.

Question (2): Is it required to described this Code Case number on procurement and/or manufacturer’s specifications and certified material test report of welding consumables?

Reply (2): Section IX does not address procurement and manufacturer’s specifications.


Subject: Section IX, QB-415, Brazing Variables


File: BC93-527

Question (1): Does ASME Section IX permit braze welding qualifications using the d e s Of

Part QW, Welding?

Reply (1): Yes.

Question (2): May a fabricator qualify hard-facing using the brazing variables listed in QB-415?

Reply (2): No.

317


IX-92-84, E-92-85, M-92-86 Section IX - Interpretations No. 34


Subject: Section IX, QW-407.2, Postweld Heat Treatment


File: BC93-586

Background: A PQR was welded on a 2 in. thick P-No. 1, Gr. 2 material and post weld heat treated at 1150°F for six hours (3 hrshn.) with supplementary essential variable requirements.

Question: Will this PQR support a WPS for a production weld in 2 in. thick P-No. 1, Gr. 2 material that is PWHT at 1150°F for 2 hours (lhr/in.)?

Reply: Yes.


Subject: Section IX, QB-121 and QB-123, Brazing Test Positions


File: BC93-655

Question: If the test material is oriented at 15 deg. above horizontal (i.e., 75 deg. down from vertical) and the brazing filler metal flows upward by capillary action through the joint, would the brazer then be qualified for both the flat-flow and vertical-upflow positions?

Reply: No.


Subject: Section IX, QW-100.3, Welding General Requirements


File: BC93-658

Question: May a hard-facing procedure qualification test that was performed in 1990 on a 1 in. thick test coupon and is used to support a welding procedure specification written in 1993 be used to deposit a hard-facing overlay on base material 1 in. to unlimited thickness?

Reply: Yes. QW-100.3 allows welding procedure specification (WPS) to be supported by procedure qualifications accomplished subsequent to 1962 without amending the WPS to include any variables required by later Editions and Addenda.

318


Section IX - Interpretations No. 35 M-92-87, IX-92-88


Subject: Section IX, QW-403.6, Base Metals and QW-409.1, Electrical Characteristics


File: BC93-151

Background: Two PQRs have been qualified to support a WPS with notch toughness requirements and having a qualified base metal thickness range from 5/,6 in. to 2 in. inclusive. One PQR was qualified on 1 in. thick material with a maximum heat input of 85,000 J/in. The second was qualified on 5/16 in. thick material with a maximum heat input of 45,000 J/in. All other essential and supplementary essential variables are the same.

Question (1): Is this WPS qualified for using 85,000 J/in. ma. heat input on thicknesses 5/16 in. to 2 in.?

Reply (1): No.

Question (2): Is the heat input value of 85,000 J/in. applicable to base metal thickness between '/I6 in. to 2 in. and the heat input value of 45,000 J/in. applicable to base metal thicknesses between

in. and V 8 in.?

Reply (2): Yes.


Subject: Section IX, QW-409.1 and QW-409.8, Electrical Characteristics


File: BC93-593

Question: Section E, QW-409.8 and QW-409.1, require that the volts and amps be specified in the WPS. Does Section IX require voltage to be measured at a specific location in the welding circuit or the current to be measured using a specific type of meter (RMS, averaging or other type)?

Reply: No.

323


M-92-8%M-92-91 Section IX - Interpretations No. 35


Subject: Section IX, QW-452.1, Groove Weld Procedure Qualification Thickness Limits and Test Specimens and QW-452.3, Groove Weld Diameter Limits


File: BC93-653

Question: A welder has qualified on 3 in. O.D. VZ in. wall pipe in the 1G position and has also qualified on 1 in. O.D. V8 in. wall pipe in the 1G position. Is the welder qualified to weld 1 in. O.D. '//B in. wall in the 1G position?

Reply: Yes.


Subject: Section IX, QW-461.9; Performance Qualification Position and Diameter Limita- tions


File: BC93-753

Question: A welder has passed two separate tests; one on '//B in. O.D. by 0.049 in. thick pipe welded in the 6G position using GTAW process, and another on in. thick plate welded in the 1G position using GTAW process. Do these two tests in combination qualify the welder to weld pipe of unlimited diameter in all positions up to 1 in. thick using GTAW?

Reply: No.


Subject: Section IX, QW-300, General Welding Performance Qualifications


File: BC93-755

Question: Does Section IX prohibit making editorial corrections to welder and welding operator performance qualification 'records?

Reply: No.

324


Section M. - Interpretations No. 35 IX-92-92-IX-92-93


Subject: Section DL, QW-201, Manufacturer’s or Contractor’s Responsibility, Clarification Request to Interpretation DL-92-07 Date Issued Oct. 7, 1991, File BC91-156


File: BC93-678

Question (1): Is the term ”Organization” as stated in QW-201 and ”Company A” in Interpre- tation IX-92-07 one and the same?

Reply (1): No.

Background Two companies are contracted by a client company to undertake pipe work in- stallation on its facility. All stages of the Welding Procedure Qualification Processes for the two contracted companies are witnessed by the client companies representative and the documentation duly stamped and signed as accepted by the client.

Question (2): May these procedures be used by the client company?

Reply (2): No.

Question (3): Does the client company have to requalify these procedures in order to perform in-house maintenance at a later date using all the same essential and nonessential variables with its own qualified welders?

Reply (3): Yes.


Subject: Section IX, QB-402.1, Brazing Data and Appendix C - Nonmandatory S-Numbers


File: BC93-752

Question (1): Does the brazing procedure qualification test with a base metal assigned one S - Number, or S-Number plus Group-Number, qualify for all other base metals in the same S-Number grouping?

Reply (1): Yes.

Question (2): Does the brazing procedure qualification test with dissimilar metals using one metal listed in one S-Number to one specific metal not listed in one S or P-Number qualify for the brazing of all other base metals in the same S-Number to themselves and to the specific base metal without S or P-Number?

Reply (2): Yes.

325


M-92-94-IX-92-96


Subject: Section 11, Part C, SFA-5.8



File: BC93-754

Question: May AWS Classification BAg-34 be considered SFA-5.8 filler metal even though it does not appear in the 1992 ASME Boiler and Pressure Vessel Code Section 11, Part C (including the 1992 Addenda)?

Reply: Yes.


Subject: Section IX, QW-200, General Welding Procedure Qualifications


File: BC94-008

Question: May a single WPS be qualified both with PWHT and without PWHT (two PQRs), thereby allowing the WPS to be used with or without PWHT?

Reply: Yes.


Subject: Section IX, QW-300, General Welding Performance Qualifications


File: BC94-102

Background: A welder is qualified on a N P S 2 Sch. 40 pipe test coupon using GTAW 1.6 mm deposited weld metal and SMAW 2.4 mm deposited weld metal.

Question (1): IS the SMAW portion of the performance qualification considered welding with backing?

Reply (1): Yes.

Question (2): Is the welder qualified to weld NPS 4 single welded groove weld without backing using the SMAW process only?

Reply (2): No.

326




M-92-97-IX-92-99

Subject: Section IX, QW-200.4(a), Combination of Welding Procedures


File: BC94-167

Question: According to QW-200.4(a), when a qualified WPS for a combination process is avail- able, must a new WPS be generated if only one of the processes is to be used in production, provided all requirements of Section IX for the process used are met?

Reply: No.

Interpretation: {X-92-98

Subject: Section IX, Appendix C, Nonrnandatory S-Numbers


File: BC94-236

Question: May steel produced to ASTM A-108 Grade 1018, UNS G10180, be considered S-1 material?

Reply: Yes.


Subject: Section IX, QW-432.6, F-Numbers and Section 11, Part Cy SFA-5.29,1992 Addenda

Date Issued: June 10,1994

File: BC93-762 and BC93-769

Question: May AWS 5.24 ER Zr4 be considered as an F-No. 61 filler metal?

Reply: Yes.

327


asme sec ix int (1989)

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