What is essential variable in welding procedure specification (WPS)?
What is essential variable in welding procedure specification (WPS)?
Jun 29, 2018
inspection-for-industry.com
Understanding welding variables under ASME Section IX is critical for every welder, inspector, and engineer. This video clearly explains the difference between Essential Variables, Non-Essential Variables, and Supplementary Essential Variables. Learn which changes require PQR requalification, which only need WPS revision, and how impact testing changes the rules. Perfect for welding exams, interviews, site work, and procedure qualification clarity. Save this video for quick revision and share it
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