Preliminary welding procedure specification

A Welding Procedure Specification (WPS) is the formal written document describing a welding procedure. It provides direction to the welder for making sound and good quality production welds as per the code requirements.

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The purpose of the document is to guide welders to the accepted procedures so that repeatable and trusted welding techniques are used. A WPS is developed for each material alloy and for each welding type used. There are two types of welding procedure specification.

A preliminary/pre-qualified welding procedure specification (pWPS) is a document containing required variables of the welding procedure which needs to be qualified in order to create the qualified welding procedure specification (WPS).

Creating a PWPS

Based on the customer's input on type of material, dimensions and joint configuration, the pWPS will be prepared. This work is carried out by Sandvik welding engineers, utilizing their welding expertise and extensive database of weld joint data.

Sandvik has long experience in providing preliminary welding procedure specifications for welding of stainless steels and other high alloyed materials.

Sales and supply process

Preliminary welding procedure specifications are sold through the web and delivered to you by email. Sales and delivery are global and payment is possible by card. For more information, see sample pWPS and to place orders please visit the materials academy.

More welding services

Sandvik has a broad offering in stainless welding. For example, we offer welding consumables, weld testing and assessment, welding advice, quality assurance and you can always Talk-to-a-welding-expert whatever the question might be.