Re: [MW:27390] Preheat

example 

In case PQR qualified with  preheat  of 90°C ,  your WPS  minimum preheat temperature is 35°C . your are allowed to weld decreasing 55°C.

You shall not weld preheat below or equal to 34°C.

On Mon, Feb 26, 2018 at 11:04 AM, sankar rao <sankarkorukonda@gmail.com> wrote:

Dear friends,

   Essential variable for preheat what is the meaning of

Decrease>55°c (QW406.1)

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