Supply of Welders

What Is Coded Welder Supply?

Coded welder supply is the provision of welders whose qualification testing has been conducted and documented against a specific welding procedure specification (WPS) and the applicable welding qualification standard — ASME Section IX, AWS D1.1, EN ISO 9606, or an operator-specific qualification requirement — producing a Welder Qualification Test Record (WQTR) or Welder Performance Qualification Record (WPQR) that demonstrates the welder's ability to produce welds conforming to the procedure for the specific process, position, material group, thickness range, and joint configuration the project requires.

"Coded" in this context means the welder has been tested and qualified — not that they have passed a general trade test. The code qualification is specific: a welder qualified for SMAW on carbon steel plate in the 3G position is not automatically qualified for GMAW on stainless steel pipe in the 6G position. We confirm qualification scope against the project WPS requirements before supplying welders — not after arrival on site has revealed the mismatch.

Every welder supplied by Altair Engineering Inspection holds a current, in-scope qualification record traceable to the applicable welding standard. Where a qualification has lapsed or the project WPS requires a re-test, we arrange the qualification testing before deployment — not as an afterthought at the project site.

Where We Supply Coded Welders

•        Pressure vessel fabrication and repair — coded welders for ASME Section VIII construction and in-service repair

•        Process piping installation and replacement — ASME B31.3 coded welding for refinery and petrochemical piping

•        Pipeline construction and tie-in welding — API 1104 and DNV-ST-F101 girth weld welders

•        Offshore platform structural and pressure welding — ASME IX and AWS D1.1 coded welders for topsides construction and modification

•        Structural steelwork fabrication — AWS D1.1 qualified welders for structural connections and heavy sections

•        Storage tank repair and construction — API 650 / API 653 repair welding to coded procedure

•        Boiler and pressure part repair — ASME Section I and NBIC repair welding

•        Shutdown and turnaround repair welding — short-notice coded welder deployment for in-service repair activities

Applicable Codes and Standards

•        ASME Section IX — Welding, Brazing, and Fusing Qualifications — the primary qualification standard for pressure welding

•        AWS D1.1 — Structural Welding Code — Steel — welder qualification requirements for structural applications

•        API 1104 — Welding of Pipelines and Related Facilities — welder qualification for pipeline girth welding

•        EN ISO 9606-1 — Qualification testing of welders — Fusion welding — Steels (European PED applications)

•        DNV-ST-F101 — Submarine Pipeline Systems — welder qualification for offshore pipeline construction

•        NBIC (NB-23) — National Board Inspection Code — repair and alteration welding qualification requirements

•        Client and project-specific WPS and welder qualification requirements