what is the difference between WPS & PQR

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WPS stands for Welding Procedure Specification, while PQR stands for Procedure Qualification Record. WPS is a document that provides necessary information for welding, while PQR is a record of the welding parameters used during qualification testing.

WPS is a detailed document that specifies all the necessary parameters for a specific welding job, such as materials, welding process, joint design, etc.
PQR is a record of the actual welding parameters used during the qualification testing of a specific welding procedure to ensure it meets the required standards.
WPS is used as a guide for welders to follow during the welding process, while PQR is used to demonstrate that the welding procedure has been qualified and meets the required standards.
For example, a WPS may specify the type of welding process to be used, the filler metal to be used, the preheat and interpass temperature requirements, etc., while a PQR will record the actual values used during the qualification testing.

what is the difference between WPS & PQR

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what is the difference between WPS &amp; PQR

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what is the difference between WPS & PQR