[MW:14500] Re: root causes for failing Pitting test in Duplex SS

The reason is improper purging..... ensure internal purging upto third
run..... use low current.....ensure oxygen levels are below 75...

With regards
Dark Horse

On Jun 8, 10:56 am, khatri ankit <nids01dme...@gmail.com> wrote:
> Dear Expets,
>
> What will the root causes for failing the pitting corrosion resistance
> test for duplex SS (22% Cr grade).
>
> What should be the remedies or how to improve my welding or welding
> quality, so the duplex SS test coupon will passes for pitting test?
>
> (I made the weld test coupon for PQR to do the Pitting test, but the
> results have failed it.the electrode that we used for welding is
> E-2209)
>
> Kindly send ur reviews, so i can improve it the same.
>
> Regards,
>
> Ankit Khatri

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