American Welding Society Forum
I'm having a few issues with a project I'm working on at the moment. My supplier has provided a CJP WPQ to cover both PJP & CJP welds being carried out on the project. Unfortunately only 2 macro tests have been carried out on the original CJP qualification and our client is refusing to accept the PJP as pre-qualified because of this. The supplier claims this is incorrect. Details below
Clause 4.11.3 of AWS D1.1-2010 states that PJP butt welds qualified by CJP a minimum of three macro cross sections are
required to demonstrate the specified welds size is achieved or exceeded.
However, when dealing with welding PJP connections utilising a previously qualified CJP WPS, AWS states within sections 3.12/3.13 as referenced Table 4.5 (31) in that a CJP butt weld qualification qualifies any groove detail including PJP as long as the PJP details are in accordance with any of the those pre-qualified joints shown in Figure 3.3 included below
The project PJP Joint details being utilised on the project conform with the joint designation BTC-P5-GF therefore can this be welded with any qualified Complete Joint Penetration Procedure?
As long as the groove detail conforms to a prequalified PJP detail, and providing all the conditions of prequalification are met, i.e., approved welding process, matching filler metal, preheat, etc., it is not necessary to perform any macro sections.
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