More than likely xray was rejected because of shade
line, or nonfusion because of Hi-Lo fit up. Forman
should have a chat with xray or inspector to determine
what it is. My guess is shade line, or nonfusion. Easy
fix would be to unflange and back weld, may need to
grind down bead before back welding to prevent excess.
Also if welder grind bead down may find defect.
--- Christopher Wright <chrisw@skypoint.com> wrote:
> >all of a sudden QC Inspector says that the welds on
> >two flanges ( 24"-150 ) for the cooling water
> service failed the x-ray.
> What's the problem with the welds? If the welds are
> cracked, you may have
> made the wrong call. Fracture from a pre existing
> crack can be pretty
> awful and it happens quick and not necessarily under
> the most severe
> loading. If it's excess porosity you may be able to
> get away with it. If
> it's poor workmanship, you could have any damn thing
> at all from no
> problem to serious problems.
>
> I'd be very nervous about a call like this. Ignoring
> your own standards
> because it's convenient doesn't look so good, and it
> sets a bad example.
> And this one's on record to boot. If I were gonna do
> something like this
> I'd sure do my homework first.
>
> Christopher Wright P.E. |"They couldn't hit an
> elephant from
> chrisw@skypoint.com | this distance" (last
> words of Gen.
> ___________________________| John Sedgwick,
> Spotsylvania 1864)
> <a href="http://www.skypoint.com/~chrisw">http://www.skypoint.com/~chrisw</a>
>
>
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