Capability 03

Welding procedure development

ASME Section IX procedures qualified for alloys, dissimilar metals, thicknesses and service conditions, with WPS/PQR documentation

A welder TIG-welding a stainless assembly

We develop and qualify ASME Section IX welding procedures for different alloys, dissimilar metal joints, thicknesses and service conditions, supported by WPS/PQR documentation and the required testing. Procedures can be developed for a single project or as the basis for repeat production.

What we deliver

WPS and PQR development and qualification
Dissimilar metal and specialty alloy joints
Welder performance qualification
Mechanical testing coordination
Documentation packages for client and AI review

FAQ

Questions about welding procedure development

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What is the difference between a WPS and a PQR?

A Procedure Qualification Record (PQR) documents the actual test weld and the results of the tests performed on it. A Welding Procedure Specification (WPS) is the written instruction welders follow in production, and it must be supported by one or more qualified PQRs.

Can a procedure be qualified for dissimilar metals?

Yes. ASME Section IX covers dissimilar metal joints. The procedure is qualified for the specific base metal combination, filler metal and thickness range the work requires.

What testing is involved in qualifying a procedure?

Typically tension and guided bend tests on specimens cut from the test weld, with impact testing or other examinations added when the construction code or service conditions require them.

Capabilities