[MW:11598] Re: E7018-A1 Electrod

Zakaria,
The "A1" designation is for the addition of Chrome moly to the
normally full carbon steel filler metal mixture. It is normally used
for welding/ joining of P3 (Carbon .5Mo materials). In this case it
would not be wise or advisable (as the client has dictated) to use a
filler metal without the addition of the Moly. Hope this helps.

Robert Moseley
Welding Specialist/ Consultant

On Jul 5, 10:11 am, Zakaria ghrab <zakaria.gh...@gmail.com> wrote:
> Hi All,
>
>   In our boiler project we have to weld socket tube A210 Gr A1,  38 mm
> diameter , 4 mm thick  to collector P11 material thick , according client
> WPS we have to weld by E7015-A1.
>
> What's the difference between EXXXX and EXXXX-A1
> May E7018 substitue E7015-A1 ?
>
> Kind regards
>
> --
> *زكرياء غراب
> **GHRAB Zakaria** *
> مسؤول عن الجودة
> QA/QC SENAD
> مشروع المحطة الحرارية ـ الوحدة الرابعة
> المحمدية ـ المغرب

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