Friday, October 19, 2018

[MW:28443] WELDER QUALIFICATION TEST RANGE

Dear Experts,

I would like to know what is the minimum range of Plate & Piping material (thickness, Pipe size) to qualify...??? ( Min. range to pass till max allowable thick dia of material)

Also I would like to Know that what are the steps to prepare PQR-WPS and what is Primary & Secondary document between them.

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