Pre-qualified Weld Procedure

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  • January 26, 2018 at 2:59 am #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

    January 27, 2018 at 8:09 am #1493
    Ballbearing
    Spectator

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

    January 28, 2018 at 8:11 am #1494
    Ballbearing
    Spectator

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

    January 29, 2018 at 7:08 pm #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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