Pre-qualified Weld Procedure

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  • #1492
    Inspector Gadget
    Spectator

    What testing (if any) is required for a pre-qualified weld procedure under section 2 of AS3992?

    All preparations, consumable and parameters etc are pre-qualified- Single V butt on 6mm low carbon pipe. GTAW.

    AS1554.1 asks for a macro, what does AS3992 require?

    Cheers

    IG

    #1491
    Inspector Gadget
    Spectator

    What limitations does a pre-qualified weld procedure have on the thickness range? Is it limited to the actual thickness used?
    AS3992, Clause 2.1 (c) …..”Table 5.4 which does not apply to pre-qualified procedures”;

    AS3992, Table 5.4 – Range of thickness qualified.

    Cheers

    IG

    #1493
    Ballbearing
    Spectator

    IG,
    It is listed in Essential Variables – 3mm to 13 mm
    Regards,
    BB

    #1494
    Ballbearing
    Spectator

    IG,
    Nothing required other than a welder must be able to pass qualification to that WPS,
    Regards,
    BB

    #1583
    Chris
    Spectator

    The most limiting factor I have found is the positions qualified, Fundamental welding positions as per fig 5.1, as far as pipe butts go is only 1G rotated & 2G, whitch is quite limiting really.

    Apart from that pre-qualified proceudures would be great and require no additional testing, use the recomended parameters write a WPS and bam, your done.

    Welder qualification is a must aswell mind you.

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