211823898 Asme Section Ix Interpretations - baixardoc

SASME SECTION IX INTERPRETATIONS

NOTE: THESE INTERPRETATIONS ARE FOR ASME COMMITTEE USE ONLY.

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VOLUME 33

Interpretation: IX-92-59 Subject: QW-306, Combination of Welding Processes; QW-452.1 and QW-452.3,

Performance Qualification Thickness Limits and Test Specimens

Date Issued: February 22, 1993

File No: 92-206

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 GRAW process

and the remainder welded with SMAW process.

(3) 6 in. XXS (.864) 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.

Interpretation: IX-92-60 Subject: QW-214, Corrosion-Resistant Weld Metal Overlay


File No: 92-421

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.

Interpretation: IX-92-61

Subject: Section II, Part C; SFA-5.13, Specification for Solid Surfacing Welding Rods

and Electrodes


File No: 92-422

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

Reply: No.

Interpretation: IX-92-62 Subject: QW-408.2, Shielding Gas


File No: 92-425

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.

Interpretation: IX-92-63 Subject: QW-153.1, Tensile Strength


File No: 92-452

Question: A welding procedure qualification test coupon is welded using P-No. 23, SB-209,

alloy 6061 aluminum base material in the (“o”) 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.


Subject: QW-322, Expiration and Renewal of Qualification

Date Issued: May 26, 1993

File No: 93-148

Background: A welding operator is in the process of renewing his/her 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.

Interpretation: IX-92-65 Subject: QW-423.1, Alternate Base Metals for Welder Qualification

Date Issued: May 26, 1993

File No: 93-148

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

Reply: Yes.

Interpretation: IX-92-66 Subject: QW-201, Manufacturer’s or Contractor’s Responsibility Date Issued: May 26, 1993

File No: 93-377

Background: Company A and Company B merge divisions to form 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 laboratory of Company A to

develop WPSs and PQRs?

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


Subject: QW-201, Manufacturer’s or Contractor’s Responsibility Date Issued: May 26, 1993

File No: 93-391

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.


Subject: QW-306, Combination of Welding Processes; and QW-451, Groove Weld

Procedure Qualification Thickness Limits and Test Specimens

Date Issued: June 30, 1993

File No: 92-011A

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.

Interpretation: IX-92-69 Subject: QW-409.1, Electrical Characteristics


File No: 92-011B, 92-228, 92-353

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.

VOLUME 34

Interpretation: IX-92-70R

Subject: QW-403.5, Base Metals


File No: 00-470

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 requirement is

conducted with two materials of different P-Number each having multiple certifications in

different Group Numbers, are WPSs qualified for all combinations of the multiple certified Group

Number of the first P-Number material to the multiple certified Group Number 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 requirement 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.

Note: The term “multiple certifications” as used means any material for which a material test report indicates that the material meets all the requirements of two or more specifications, grades,

types, or classes.

Interpretation: IX-92-71 Subject: QW-302.4, Visual Examination

Date Issued: September 22, 1993

File No: 93-365

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.

Interpretation: IX-92-72 Subject: QW-381(c), Corrosion Resistant Weld Metal Overlay; QW-453 and QW-461.9,

Performance Qualification


File No: 93-392

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 (2a): 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 (2b): When the overlay test specimens are less than ⅜ in. thick, may the side bend specimen width be the test specimen thickness?

Question (2c): May the edges of the overlay be outside of the bent area as long as at least a 1½

in. width of overlay and HAZ are completely within the bend?

Reply (2a): Yes.

Reply (2b): Yes.

Reply (2c): 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.

Interpretation: IX-92-73 Subject: QW-321.3, Welder Qualification After Further Training or Practice


File No: 93-468

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: QB-402.1, Base Metals


File No: 93-474

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 P-No. 107 or S-No. 107 material in accordance with QB-

402.1?

Reply: No.

Interpretation: IX-92-75 Subject: QW-200.4(b), Combination of Welding Procedures


File No: 93-490

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 ½ in. minimum thickness as stated in QW-200.4(b)?

Reply: No.

Interpretation: IX-92-76 Subject: QW-462, Test Specimens


File No: 93-515

Question: QW-462 defines W as “specimen width, ¾ in.”. Is ¾ in. a minimum or maximum dimension requirement for preparing a reduced section tensile specimen?

Reply: No.


Subject: QW-200.4, Combination of Welding Procedures; and QW-451.4, Fillet Welds

Qualified by Groove Weld Tests


File No: 93-518

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 E7018 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 E7018 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.


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


File No: 93-561

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: QW-151.1, Tension Tests, Reduced Section-Plate; and QW-462.1(a), Test

Specimens


File No: 93-583

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.


Subject: QW-103, Responsibility; and QW-210, Manufacturer’s or Contractor’s Responsibility


File No: 93-584

Question: When a company changes names during the course of time must all the historical

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.

Interpretation: IX-92-81 Subject: QW-103.1 and QW-201, Manufacturer’s or Contractor’s Responsibility Date Issued: October 18, 1993

File No: 92-306

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.

Interpretation: IX-92-82 Subject: Code Case 2141, Electrodes and Fluxes for Submerged Arc Welding, SFA 5.17

and SFA 5.23

Date Issued: November 22, 1993

File No: 93-434

Question (1): Does the “Manufacturer’s Date Report” in the Section IX Code Case 2141 mean the following: (a) Manufacturer’s Data Report required in PG-112 of Section I; (b) Data Report

required in NCA-3770 of Section III; (c) Data Report required in UG-120 of Section VIII,

Division 1; or (d) Manufacturer’s Data Report required in AS-300 of Section VIII, Division 2?

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

Question (2): Is it required to describe 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: QB-415, Brazing Variables


File No: 93-527

Question (1): Does ASME Section IX permit braze welding qualifications, using the rules 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.


Subject: QW-407.2, Postweld Heat Treatment


File No: 93-586

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 hrs/in.) 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 (1 hr/in.)?

Reply: Yes.

Interpretation: IX-92-85 Subject: QB-121 and AB-123, Brazing Test Positions


File No: 93-655

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.

Interpretation: IX-92-86 Subject: QW-100.3, Welding General Requirements


File No: 93-658

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 a base material 1 in. to unlimited thickness?

Reply: Yes. QW-100.3 allows welding procedure specifications (WPSs) to be supported by

procedure qualifications accomplished subsequent to 1962 without amending the WPS to include

any variables required by later Editions and Addenda.

VOLUME 35

Interpretation: IX-92-87 Subject: QW-403.6, Base Metals; and QW-409.1, Electrical Characteristics


File No: 93-151

Background: Two PQRs have been qualified to support a WPS with notch toughness

requirements and having a qualified base metal thickness range from 5/16 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. max. heat input on thicknesses 5/16 in.

to 2 in.?

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211823898 Asme Section Ix Interpretations - baixardoc