What is Welder Performance Qualification (WPQ)?

• A. A document describing welding standards in general.
• B. A test to prove a welder can perform welds per the WPS and standards.
• C. A form used to record weld quality after a job.
• D. A document listing approved welding suppliers.

Answer: (B)

Welder Performance Qualification shows that a welder can produce welds that meet the requirements of the welding procedure specification and the applicable code or standard. It involves performing a test weld (or set of welds) under controlled conditions using the specified process, material, joint type, and welding parameters, then having those test welds inspected and tested as required. A successful WPQ result documents that the welder is qualified to weld to that WPS for the designated scope (joint type, material thickness, position, etc.). This is distinct from a general standards document, or a form used to record weld quality after a job, or a list of approved suppliers.