We recently received a request from a client for a list of Welding Procedures (WPS) to suit pipe welding.
While that may sound like an obvious and simple request, the reality is that a WPS it’s just not as simple as a list of instructions on how to weld pipes together.

It’s just not that simple.

While there are probably common welding projects that a simple Welding Procedure might be adequate for, the WPS that Australian Welding Solutions produces are for specific applications and are individually crafted for that project and the related engineering, quality and safety standards.

This is especially true for most pipe welding projects, where a range of technical factors and specifications are factored into the WPS preparation.

Our Welding specialists will consider all of the relevant technical information when designing a WPS to ensure a compliant weld will be applied.

What is a Weld Procedure?

A Welding Procedure is a document that outlines the specific steps and requirements for carrying out a welding operation. It includes detailed instructions on the type of equipment to be used, the welding techniques to be applied, and the safety measures that should be taken.

A welding procedure aims to ensure that a consistent and reliable weld is produced every time the procedure is followed. It also ensures that the welding operation meets the required standards and specifications for the particular application.

Welding procedures are developed by qualified personnel based on the type of metal being welded, the welding process being used, and the project’s requirements and related standards. Once a welding procedure has been developed, it must be qualified through a series of tests to ensure that it meets the required standards and specifications.

Welder qualification to a WPS

Generally not well understood is that welders are also required to be ‘qualified’ to undertake the welding specified by a WPS.
This may involve training and assessment of a welder’s ability to deliver the weld to the level specified by a WPS.
If the welder qualification is not completed, then the weldment does not comply to the WPS, and therefore does not comply with the related standards.
This is a key point that may result in the weld not complying with the design standard which in turn, may compromise the entire project.

Why there is no place for a ‘list of WPS’

So, unfortunately, we can’t simply provide a list of WPS to be arbitrarily selected for a job, and then welded by a random welder, even if they are a competent welder with a history of quality weld production.

A structured process is performed by highly qualified and experienced personnel to provide the WPS, and then a training/certification process to ensure the welder can deliver welds consistently to the WPS standards. AWS also provides Welder Qualification to the WPS.

Failure to deliver on these WPS requirements may compromise the weld integrity; risk legislated penalties and also risk lives.

Federal and State legislation now enforces liability, prosecution and substantial fines on persons involved in the manufacturing process, including the organisation’s management. Consequently, WPS preparation and welder certification to a WPS are not trivial matters.