Every WPS used for production welding under AWS D1.1:2025 must contain sufficient written information to guide the welder and demonstrate compliance with the applicable qualification requirements. Annex J provides the standard form designed to capture that information in a consistent, auditable layout.
Most CWIs know the form by sight. Fewer understand exactly which fields are essential variables, which are administrative, and which are the ones that most often appear in audit nonconformance reports.
This guide goes field by field through the Annex J WPS form and explains what belongs in each section, what "blank" means legally, and where the form connects to Table 6.6.
Structure of the Annex J Form
The Annex J WPS form is organized into four logical sections:
- Identification and authorization — WPS number, revision, date, and the supporting PQR numbers
- Joint design — Groove type, joint geometry, backing, fit-up parameters
- Base metal and filler metal — Materials, electrode/wire classification, supplemental filler
- Technique and welding parameters — Position, preheat, interpass temperature, amperage, voltage, travel speed, shielding gas, technique (stringer/weave), and pass sequence
The CWI signature line appears at the bottom, along with the certifying individual's name and CWI number. This signature is the formal attestation that the WPS is based on qualified PQR data (or a prequalified joint) and is appropriate for the intended application.
Section 1: Identification
WPS Number: Every WPS must have a unique identifier within the shop's welding program. Numbering schemes are shop-specific, but the WPS number must be traceable to the shop's WPS index and the relevant project weld maps. Revision levels (Rev 0, Rev 1, etc.) must increment whenever an essential variable is changed.
PQR Number(s): List every PQR that supports this WPS. If a WPS covers both 1G/2G positions and the shop ran separate PQRs for flat and horizontal, both PQR numbers belong here. The PQR number is the bridge between the tested procedure and the production WPS — an auditor will pull both documents and cross-check essential variable consistency.
Date: Use the date of the current revision. An undated WPS is not useful for continuity-of-record purposes — an auditor cannot confirm which version was in effect on a given production date if revisions lack dates.
Section 2: Joint Design
Joint type: CJP, PJP, fillet, plug/slot. This field is critical for confirming that the WPS is being applied to an appropriate joint. A WPS qualified for PJP groove welds cannot be used for a CJP without either a prequalified CJP joint or a separate CJP PQR.
Groove angle, root opening, root face: These are the prequalified joint geometry parameters. For prequalified WPS per Clause 5, the values must fall within the listed Clause 5 tolerances. For tested WPS, these define the joint used during PQR testing — variations within Clause 6 tolerance ranges may be permitted without requalification.
Backing: Yes/No and type (steel, flux, ceramic, copper, none). The presence or absence of backing is an essential variable under Table 6.6. A WPS tested without backing cannot be used for a joint with steel backing without evaluation, and vice versa.
Rule library based on AWS D1.1:2025; verify against your governing edition.
Section 3: Base Metal and Filler Metal
Base metal specification and group: Identify the ASTM specification (e.g., A572 Grade 50) and the AWS D1.1:2025 Table 6.9 base metal group. Qualified base metal substitutions are governed by Table 6.9 — a WPS qualified with one Group I material generally covers other Group I materials, but substitutions outside the group require requalification.
Base metal thickness range: State the minimum and maximum thickness the WPS qualifies per Table 6.6 coverage rules. For a CJP groove weld qualified on a test plate of thickness T, the WPS covers a thickness range determined by the code rules — typically from ⅛ in [3 mm] to 2T. This range must appear on the WPS.
Filler metal classification: Full AWS A5-series designation including the complete suffix. For FCAW-G, this means something like E71T-1C-H4 — not just "E71T-1." The full designation matters because the -H4 suffix (diffusible hydrogen) is an essential variable. Stripping it to a partial designation hides an essential variable qualification boundary.
Supplemental filler and flux: For SAW, list both the wire and flux classifications. The flux classification is an essential variable per Table 6.6 row 7. For electroslag/electrogas (ESW/EGW), list the filler and flux per Table 6.7 requirements.
Minimum preheat temperature: Do not list zero unless the material, thickness, and code clause genuinely allow zero preheat. For A572 Grade 50 at thickness above 1½ in, the AWS D1.1 minimum preheat per Table 5.3 is not zero. A WPS preheat entry that is lower than the Table 5.3 minimum is a deficiency.
Maximum interpass temperature: This must be a number. "As required" is not acceptable. Interpass temperature limits affect mechanical properties — particularly CVN toughness in Table 6.8 applications — and the CWI needs a specific maximum to enforce in the field.