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Re: [MW:6777] Polarity qualification?

By Materials & Welding

Hi

If you are referring ASME Sec IX, then as per the table of QW-253 which talks about welding variables procedure specifications, refer QW-409.4 (Electrical characteristics), change in current or polarity is considered as supplementary essential variable for Impact requirements and Non-essential if you don't have any Impact requirements.


Regards

Prem Nautiyal

On Sat, 28 Aug 2010 15:26:12 +0530 wrote
>Dear all





If one qualifies in DCEP for SMAW,

Whats the range qualified for those either DCEP only or both (DCEP&

DCEN)?

any limits given in specs? where?





Thanks



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