Pre-Qualified Welding Procedures

The Technical Safety BC Pre-Qualified Welding Procedures (PWPs) are welding procedures that have been pre-qualified in accordance with the requirements of ASME Sec IX.

These WPSs are pre-qualified by Technical Safety BC for use by Licensed Contractors and are standard procedures for Pressure Welders to test to.

There are 13 PWPs, each satisfying different variables for procedure and welding requirements.

 

PRE-QUALIFIED 

WELDING PROCEDURE

PWP#1

Carbon Steel (P1 to P1)

6010 Root/HotPass Uphand

7018 Fill/Cap Uphand

All positions

 

PRE-QUALIFIED 

WELDING PROCEDURE

PWP#2

Carbon Steel (P1 to P1)

6010 Root/HotPass Downhand

7018 Fill/Cap Uphand

All positions

 

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