Re: [MW:17203] API 1104 Wall thickness qualification for Auto-welding

GMAW(STT) is semi-auto while FCAW is automatic. root is with GMAW(STT)
and fill/cap is with FCAW.

On Sat, Mar 23, 2013 at 9:42 AM, Samun Bhatia <samunbhatia@gmail.com> wrote:
> Dear all,
> 1st u have to check that both process r automatic or semiautomatic
>
> On Mar 18, 2013 11:14 AM, "M.A.Samdani" <m.a.samdani7@gmail.com> wrote:
>>
>> Dear All,
>>
>> Please guide me about interpretation of clause 12.5.2.4 of API 1104
>> regarding wall thickness of Automatic welding process which states "a
>> change in wall thickness beyond the range established in the procedure
>> specification constitutes an essential variable"
>> In my PQR sample thickness is 12.7 mm process is GMAW (STT)/FCAW. If
>> I specify thickness range from 4.8 to 19.1 mm (group "b" of API) will
>> it be OK?
>> Please give your interpretation/thoughts of above clause what would be
>> my qualified thickness range with using above PQR thickness.
>>
>> Thanks in advance
>> Ali Samdani
>>
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