The primary purpose of the WPS (Welding Procedure Specification) is to:

The primary purpose of the Welding Procedure Specification (WPS) is to provide detailed guidance to the welder on how to execute a weld in accordance with established code requirements. The WPS outlines critical variables such as joint design, welding material, welding process, and parameters such as heat input, speed, and preheat temperature. By specifying these variables, the WPS ensures that the welding is performed consistently and adheres to the intended standards for quality and safety, which is crucial in industries where welding plays a significant role.

WPS serves as a comprehensive reference document, ensuring that welds are produced reliably, meeting both the technical and regulatory demands of the project. The welder relies on this instruction during the construction phase to produce sound welds that are capable of meeting the performance standards set by industry codes and project specifications.