Benefit of use SWPS ASME IX Article V

[perruolo]

Gents,

After reading the requirements or ASME IX article V regarding use of Standard Welding Procedures Specifications (QW-510). Contrary to what is allowed in AWS D1.1 where it is accepted using pre-qualified procedures without any further test, ASME IX establish mandatory visual and volumetric inspection to validate the porcedure. So what´s the benefit??
Companies adopt prequalified AWS D1.1 WPS as a way to reduce time, cost and efforts.

On the other hand, as the SWPS listed in annex E are protected by copyright. should I take a original document from AWS to adopt?

Regards

 

[metengr]

The use of SWPS would be dictated by a code of construction - like Section I, IV, VIII, etc., or a repair code like the NBIC. Section IX recognizes the existence of SWPS and how to use them. They are an option for consideration.

 

[gtaw]

The advantage of he SWPS is that there is no requirement to perform reduced section tensile tests, thus no machining is required and no laboratory testing is necessary. This can reduct the time required to qualify the WPS and it saves the contractor money.

Each contractor wishing to use SWPS must purchase them from AWS through a licensing agreement.

Personal view, they have little to offer in the grand scheme of life.

Best regards - Al

 

[22erik22]

The SWPS requires a demonstration, which is less regiorous than a PQR, and as Walter Sperko mentions in this article

http://sperkoengineering.com/html/articles/Sage Advice on SWPSs.pdf

(last paragraph second page), it's best to "demonstrate" the SWPS and qualify your first welder at the same time.

 

[Duwe6]

At the end of the day, using an SWPS didn't really save any money or time. If *you* do a PQR instead, you now own that document and can now use it to support other WPS's.

One example would be to make a GTAW PQR, then write a GTAW WPS *and* also use that PQR for the rood & 'hot-pass' of a combined GTAW/SMAW WPS [the SMAW portion would come from a SMAW PQR]. Thus for the price & time of making two PQR's, GTAW & SMAW, you now have three WPS's -- GTAW, SMAW, GTAW+SMAW. And you can also use these two PQR's to make other WPS's, to satisfy specific customer requests.