Field-by-field guide to completing the standard WPS form from Annex J of AWS D1.1:2025. Covers every required entry, common omissions, and how PQR data maps to WPS entries.
The WPS form is the production document that welders and inspectors reference on the shop floor and in the field. Getting it right means more than filling in a few parameters — it means every field reflects tested or prequalified limits, every range is defensible under AWS D1.1, and the document is complete enough that a CWI can verify compliance without having to call the engineer.
AWS D1.1:2025 places the standard WPS form in Annex J, Form J-1. This article walks through every section of that form, explains what must be documented in each field, identifies common completion errors, and shows how the data flows from a PQR test record into the final WPS.
Rule library based on AWS D1.1:2025; verify against your governing edition — the AHJ or contract may specify 2020 or earlier.
The Purpose of Form J-1
Form J-1 is the standard documentation vehicle for a tested WPS under AWS D1.1 Clause 6. It captures the welding variables and their qualified ranges so that production welding can be performed within proven limits.
A prequalified WPS under Clause 5 may use the same form layout with the PQR fields marked "prequalified per Clause 5," but all variable entries must still represent the limits within which Clause 5 permits welding without testing. Annex J also includes Form J-2 for PQR documentation.
The form has eight logical sections:
- Identification and administrative information
- Welding process and method
- Joint design
- Base metal
- Filler metal
- Position
- Preheat and interpass temperature
- Electrical characteristics, technique, and post-weld heat treatment
Section 1: Identification and Administrative Data
WPS Number: Each WPS must have a unique identifier. Use a consistent numbering system that lets inspectors and auditors trace a WPS from production records back to the form and from the form to the supporting PQR. A common format is a prefix indicating the process and a sequential number (e.g., FCAW-G-001), but any unique identifier works.
Revision Number and Date: Every revision to a WPS must increment the revision number and update the revision date. The original issue is Revision 0. After any change to a variable, increment to Revision 1 and update the date. Auditors cross-check revision dates against the dates on production weld maps and inspection records to confirm the correct revision was in effect during production.
Supporting PQR Number(s): List every PQR that supports this WPS. If multiple PQRs are combined into a single WPS (covering multiple processes or multiple base metal groups), list all of them. Each PQR number should be traceable to a test record on file.
Welding Code: State the governing code — AWS D1.1:2025, or the specific edition applicable to the project. If the project specifies a different edition, the WPS and all qualified ranges must meet that edition's requirements.
Prepared by / Approved by: Name and signature (or printed name and date) of the responsible party. For many structural fabricators, this is the CWI or welding engineer. The approver is typically the responsible welding engineer or the CWI-in-charge.
Section 2: Welding Process and Method
Welding Process: State the specific AWS-designated process: SMAW, FCAW-G, FCAW-S, GMAW, GTAW, SAW. If the WPS covers multiple processes in sequence (e.g., GTAW root / FCAW-G fill and cap), list each process and define which passes each process covers.
Manual, Semi-Automatic, or Mechanized: This entry matters for essential variables. A change from semi-automatic to automatic welding is an essential variable under Table 6.6 for FCAW-G and GMAW. Document the actual method used during the PQR and restrict the WPS to that method or a range that is qualified by the PQR.
Common error: Listing "semi-automatic" on the WPS when the PQR was performed with an automatic welding system (e.g., a column line machine), or vice versa.
Section 3: Joint Design
This section defines the joint geometry — groove type, included angle, root opening, root face, and backing.
Joint Type: CJP groove, PJP groove, fillet, plug/slot. The joint type determines which acceptance criteria and which test requirements apply.
Groove Details: For prequalified joints, reference the specific joint designation from Clause 5 of AWS D1.1 (from the figures in that clause). For tested joints, state the actual groove dimensions tested during the PQR, and state the production range (which must be within AWS D1.1 Clause 6 rules for geometric variables).
Backing: State whether steel backing, copper backing, or no backing (open root) was used during the PQR qualification. Backing type is an essential variable for groove welds under Table 6.6. Changing from steel backing to no backing, or vice versa, requires a new PQR qualification.
Root Opening Range: For groove welds, state the minimum and maximum root opening in production. This is a production control parameter, not a strict essential variable in the same sense as backing, but it must be within the tolerances stated for the joint geometry.
Section 4: Base Metal
Specification and Grade: List the base metal specification (e.g., ASTM A572 Grade 50, ASTM A992, ASTM A500 Grade C) exactly as it appears in the material standard. For projects with multiple base metals, the WPS must qualify for each base metal being joined.
Base Metal Group: Reference the base metal group from Table 5.6 of AWS D1.1:2025 (prequalified base metals) or the PQR test record. Base metal grouping determines substitution rules — a PQR on a Group I metal may qualify for other Group I metals.
Thickness Range: State the minimum and maximum qualified thickness, as determined by the PQR test plate thickness and the Clause 6 qualified range rules. Do not leave this as "unlimited" unless the PQR and clause rules actually support it.
Common error: Listing the wrong base metal group, particularly for dual-certified material (ASTM A36/A572 dual cert). Confirm the actual certification and the applicable group before entering.
Section 5: Filler Metal
This is the section most likely to have essential variable implications if the shop deviates from the stated values.
AWS Classification: State the full AWS filler metal classification (e.g., AWS A5.20 E71T-1C-H8 for FCAW-G, AWS A5.1 E7018-H4 for SMAW). The full designation — including usability designator and optional suffix — must match the electrode tested during the PQR.
F-Number: The filler metal F-Number from AWS D1.1 (or ASME Section IX, if the WPS is dual-qualified). A change in F-Number is an essential variable.
A-Number (weld metal analysis group): Required for CVN-qualified procedures only. The A-Number describes the weld metal chemical composition group.
Flux Class (for SAW): For submerged arc welding, state the full flux classification per the applicable AWS A5.17 or A5.23 specification. SAW flux classification is an essential variable.
Electrode Diameter Range: State the minimum and maximum electrode diameter qualified. For SMAW, the maximum diameter is an essential variable; reducing diameter is generally acceptable within limits.
Supplemental filler metal: For processes that use supplemental filler or cold wire addition, state the classification and the qualified ratio. Table 6.6 of AWS D1.1:2025 addresses the electrode-to-supplemental-filler ratio as an essential variable (the ±10% threshold). Do not leave this blank if the process uses supplemental filler.
Section 6: Position
Position of Welding: List every qualified welding position: flat (1G/1F), horizontal (2G/2F), vertical-up (3G/3F), vertical-down, overhead (4G/4F), and pipe positions if applicable.
The position qualified by the PQR determines what production positions are allowed. A groove weld PQR in the 2G position qualifies 1G and 2G. A 3G vertical-up groove PQR qualifies 1G, 2G, and 3G. A 4G overhead groove PQR qualifies all positions (1G through 4G). These rules apply to groove welds; fillet weld position qualification has its own rules.
Vertical Welding Progression: For vertical welding, state whether uphill (vertical-up) or downhill (vertical-down) is qualified. Progression is an essential variable — a WPS qualified uphill does not cover downhill, and vice versa.
Common error: Listing "all positions" on the WPS when the PQR only tested the 2G position, or when the process (such as FCAW-S with certain electrodes) has code-based restrictions on downhill CJP groove welds.
Section 7: Preheat and Interpass Temperature
Minimum Preheat Temperature: State the minimum preheat temperature in °F and °C. For tested WPS, this is the minimum preheat maintained during the PQR. For prequalified WPS, it must meet or exceed the Table 5.11 minimum. This value represents the floor — production welding must meet or exceed it.
Maximum Interpass Temperature: State the maximum interpass temperature qualified during the PQR. This is the ceiling. If production interpass temperature exceeds the stated maximum, the essential variable has been violated. For CVN-qualified procedures (Table 6.8 supplementary variables), maximum interpass temperature has specific implications.
Measurement Method: Optionally state the method of temperature measurement (contact thermometer, crayon, infrared). Some project specifications require documentation of the measurement method on the WPS.
For detailed preheat guidance, see AWS D1.1 Table 5.11 Prequalified Minimum Preheat Guide and Preheat Temperature Measurement Methods for CWI.
Section 8: Electrical Characteristics, Technique, and PWHT
Current Type and Polarity: State DCEP, DCEN, or AC as tested in the PQR. This is an essential variable — a change from DCEP to DCEN requires requalification.
Amperage Range: State the minimum and maximum amperage range qualified during the PQR. This is the range within which production welders must operate.
Voltage Range: State the minimum and maximum voltage range qualified.
Travel Speed Range: State the minimum and maximum travel speed range.
Heat Input Range (optional but recommended): Calculated from amperage, voltage, and travel speed per the AWS D1.1 formula: H = (Amps × Volts × 60) / (Travel Speed in./min × 1000) = kJ/in. For high-heat-input processes or CVN-qualified procedures, the heat input range from the PQR defines the essential variable boundary.
Stringer vs. Weave Bead: State whether stringer beads, weave beads, or both are qualified. Maximum weave width, if restricted, must be stated.
Number of Passes and Pass Sequence: For multi-pass welds, the WPS should indicate the approximate pass sequence and the number of passes per layer. This is not a strict essential variable for most processes, but auditors expect it to be present.
Post-Weld Heat Treatment: State whether PWHT was performed during the PQR, the PWHT temperature range, hold time, and heating/cooling rates. If no PWHT was performed, state "None." A change in PWHT status (from none to applied, or vice versa) is an essential variable.
Linking the WPS to the PQR and Production Records
A complete WPS package includes:
- Form J-1 WPS document (or equivalent)
- Supporting PQR test records
- Lab test reports for the PQR mechanical tests (tensile, bend, CVN if required)
- Electrode/filler metal certifications for the PQR consumables
The PQR documents what was done during the test; the WPS documents the allowable range for production. The CWI's job is to confirm that production welding parameters stay within the ranges on the WPS, and that the WPS ranges are supported by the PQR. For more on this relationship, see How to Read a PQR Test Report and Multiple PQRs Supporting a Single WPS.
Common Audit Findings on Form J-1 Completion
- Blank fields. Every field must have an entry. Blank fields invite the auditor to assume the parameter was not controlled.
- "N/A" without justification. Not applicable is legitimate for some fields (e.g., flux class is N/A for SMAW), but the CWI should ensure it is genuinely not applicable rather than used to skip a parameter.
- Missing revision history. A WPS that shows only Revision 0 from five years ago and has clearly been modified on paper is an audit flag.
- Thickness range wider than the PQR supports. Check the Clause 6 rules for the actual PQR plate thickness before claiming a broad thickness range.
- Electrode designation truncated. Listing "E71T-1" instead of the full classification (including usability designator and optional suffix) omits information that may be essential for CVN-qualified procedures.
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