A common failure mode is starting WPQR too late, after the project has already begun. Another is using a PQR (Procedure Qualification Record) from a previous project without verifying that the base material, thickness range, or welding process matches the new requirements. Auditors frequently find that the WPQR does not cover the full range of production welds, leading to re-qualification and lost time.
Key areas where projects lose months:
? Incomplete material grouping. Many WPQRs are qualified for only one material group, but production requires multiple groups.
? Insufficient thickness range coverage. A single WPQR often covers only a narrow thickness band, forcing multiple new qualifications.
? Welding process limitations. A WPQR qualified for GMAW may not cover FCAW or SMAW, even if the filler metal is similar.
The solution is a structured WPQR planning phase before fabrication starts. Map all production weld joints, group them by material, thickness, and process, then qualify one WPQR per group. This approach can cut qualification time by 50%.
How does your team plan WPQRs to avoid last-minute delays?
Source: The Fabricator, 2025