Welding Procedure Qualification establishes the properties of the weldment not the skill of the welder or welding operator. Why a WPS needs qualification? Answer: The purpose for qualification of a WPS is to determine that the weldment proposed for construction is capable of providing the required properties for its intended application. The PQR documents what occurred during welding the test coupon and the results of testing of the coupon.ģ. What is PQR? Answer: PQR stands for procedure qualification record. A WPS is a written document that provides direction to the welder or welding operator for making production welds in accordance with code requirement. What is WPS? Answer: WPS stands for Welding Procedure Specification.
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