In PQR, if ur preheat temp is 100,℃, in wps u can mention minimum 45℃, ( 100-55=45,) if it is mentioned less 45, requalification required
On 21-Apr-2017 5:44 PM, "Vadivel Mahadevan" <vadivelmahadev@gmail.com> wrote:
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Dear Experts,
I have a doubt.
In ASME sec. IX,in many Welding process it is mentioned as "Preheat decrease >55 deg. C"
can you let know what it means exactly.. How to intrepret this variable..
Thanks in advance
Vadivel M
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