Yes, he can weld with backing. Refer QW 433 table.
Thanks & Regards
Muhammed Ibrahim PK
On 13 August 2010 14:46, Balaji <balaji.weldingeng@gmail.com> wrote:
Dear Venkat
Nope. He can't weld P-4 material using
E8028 electrodes, since F numbers are different. As per Sex IX, for
welder qualification, F numbers are essential variables.
Regards
Balaji
On Aug 12, 2:53 pm, venkat ramana <venkatgps.ram...@gmail.com> wrote:
> Dear All,
>
> Please let me know, my query is A welder was qualified with a P-1 test
> coupon using SMAW E7018 electrodes. May the welder weld P-4 material using
> E8028 electrodes with backing in production? (Assume the P-4 procedure using
> E8028 electrodes has been qualified)
>
> Thanks & Regards
> Venkat
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