What is Procedure qualification record-PQR

Procedure qualification record-PQR

Procedure qualification record (PQR) is a supporting document of welding procedure specification (WPS), that is used to record all real-time actual welding parameters variables data during the Welding procedure specification (WPS) or welding of test coupon. And after successful completion of laboratory tests, destructive test (DT), and non-destructive test (NDT) as per code requirement. All these two (Recorded real-time data during welding and DT/NDT lab test report) things result from data compiled together and called procedure qualification record (PQR). Test coupon real-time data may be essential variables, nonessential variables, and supplementary variables.

Procedure qualification record

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Variables and their types.

variables for gas tungsten arc welding (GTAW).

Variables for shielded metal arc welding (SMAW).

The purpose of qualify of the welding procedure specification or procedure specification is to demonstrate that the joining process and proposed for construction are capable of producing joints having the required mechanical and other properties for the intended applications. Qualification of the welding procedure specification demonstrates the mechanical properties of the joint made using a joining process, but not the skills of the person using the joining process.

The procedure qualification record (PQR) documents what occurred during the production of a procedures qualification test coupon and the results of testing that coupon. The procedure qualification record (PQR) shall document the essential procedure qualification test variables applied during the production of the test joint, and the results of the required tests. When toughness testing is required for qualifications of the welding procedure specifications, the applicable supplementary essential variables shall be recorded for each process. The organization shall certify the process qualification record  (PQR) by an authorized person sign or other means as described in the organization’s Quality Control System. The process qualification record (PQR) shall be accessible to the Authorized person or Inspector. A welding procedure specification (WPS) may be supported by one or more PQR, and one PQR may be used to support one or more welding procedure specifications (WPS).

Procedure qualification records (PQR) may be changed when a procedure qualification test supporting the change has been completed, or when an edition revision is necessary to correct an error, as permitted by the rules of the Part applicable to the materials joining process. Each organization shall be required to prepare a procedure qualification record (PQR) which is defined as follows:

(a) Procedure Qualification Record (PQR). The PQR is a record of the variables that are recorded during the welding of the test coupons. It also contains the test result of the tested specimens. Recorded variables normally fall within a small range of the actual variable that shall be used in production welding.

(b) Contents of the Procedure Qualification Record (PQR). For the complete of PQR shall document all essential, and, when required, supplementary essential variables of the for each welding process used during the welding of the test coupon. Nonessential or other variables used during the welding of the test coupon may be recorded at the organization of the option. All variables were used during the welding of the test coupon. If variables are not monitored during welding, they shall not be recorded. It is not intended that the full range or and the extremes of a given range of variables to be used in production be used during qualification unless required due to specific essential variables or, when required, supplementary essential variables.

The procedure qualification record (PQR) shall be certified accurate by the authorized person or organization. The organizations may not subcontract the certification function. This certification is intended to be the organization's verification that the information in the PQR is a true record of the variables that were used during the welding of the test coupon and that the resulting tensile, bend, or macro (as per requirement) test results are in compliance with Section ASME SEC-IX. One or more combinations of welding processes, filler metals, and other variables may be used when welding a test coupon.

The approximate thickness of weld metals deposited shall be recorded for each set of essential and, when required, supplementary essential variables. Weld metals deposited using each set of variables, it shall be included in the tension, bend, notch toughness, and other mechanical test specimens that are required.

(c) Changes to the procedure qualification record (PQR). Changes to the procedure qualification record (PQR) are not permitted except as described below. Editorial corrections or addenda to the procedure qualification record (PQR) are permitted. An example of an editorial correction is incorrect like P‐Number, F‐Number, or A‐Number that was assigned to particular base metals or filler metals. An example of an addendum would be a change resulting from a Code change. For example, ASME-Section IX may assign a new F‐Number to a filler metal or adopt a new filler metal under an established F‐Number. This may permit, depending on the particular construction Code requirements, an organization to use other filler metals that falls within that particular F‐Number, where, before the Code revision, the organization was limited to the particular electrode classification that was used during qualification.

Additional information can be incorporated into a procedure qualification record (PQR) at a later date provided the information is substantiated as having been part of the original qualifications condition by lab record or similar data. All changes to Changes to the procedure qualification record (PQR) require recertifications (including date) by the organization.

(d) See the Format of the procedure qualification record (PQR). Form QW-483 (see Nonmandatory Appendix B), It has been provided as a guideline for the PQR. The information required in the PQR may be in any format to fit the needs of each organization, as long as every essential and, when required, supplementary essential variables, it is required by variables. Also, types of tests, number of tests, and the test results shall be listed in the procedure qualification record (PQR). It does not easily lend itself to cover combinations of welding processes or more than one F‐Number filler metal in one test coupon. Additional sketches or information may be attached or referenced to records the required variables.

(e) Availability of the procedure qualification record (PQR), used to support welding procedure specification (WPS). It shall be available, upon request, for review by the Authorized person or by authorized Inspector (AI). The procedure qualification record (PQR), does not need to be available to the welder or welding operator.

(f) Multiple welding procedure specifications (WPS) With One Procedure specification record (PQR), and multiple PQR with One WPS. Several WPS may be prepared from the data on a single PQR. A single WPS may cover several sets of essential variable ranges as long as a supporting PQR exists for each and every essential and, when required, supplementary essential variables.

When the transfer of ownership.

The organization may maintain effective operational controls of procedure qualification record (PQR), welding procedure specifications (WPS), and performance qualification records (PQR) under different ownership than existed during the original procedure qualification. When an organization or some parts thereof is acquired by a new owner. Welding procedure specifications and performance qualification records may remain valid for use by the new owners without requalification and the new owner of procedure specifications, and performance qualification records become valid for use by the acquired organizations, provided all of the following requirements have been met-

(a) The new owners take responsibility for the procedure specifications (WPS) and performance qualification records (PQR).

(b) The welding procedure specifications (WPS) and performance qualification records (PQR) have been revised to reflect the name of the new owner.

(c) The Quality Control System or Quality Assurance documents the original source of the performance qualification records (PQR) and welding procedure specifications (WPS) Performance qualification records as being from the original qualifying organizations.

When qualification made to previous additions-

*Welding procedures specification (WPDS), procedure qualifications record (PQR), and performance qualifications or welder qualification test (WQT), that were made in accordance with Editions and Addenda of this Section as far back edition, it may be used in any construction for which the current Editions have been specified.

*Welding procedures specification (WPDS), procedure qualifications record (PQR), and performance qualifications or welder qualification test (WQT), meeting the above requirements do not require an amendment to include any variables required by later Editions and Addenda, except as specified in base metal grouping QW 420. Qualification of new welding procedure specifications (WPS) for joining processes, and performance qualifications record (PQR), for persons applying them, shall be in accordance with the current Editions of Section IX.

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