Re: [MW:26830] Preheat calculation for pipelines

Hi

Please let me the know the exact material specification and chemical properties 

Regards

PGovindan 

With Kind Regards

P Govindan 

On Fri, Sep 22, 2017 at 9:15 PM, TDK YOKESH <tdky167@gmail.com> wrote:

Hello expert , 

How to calculate preheat required for pipeline welding ? EN 1011-2 helps you to calculate  . But what values to be used for  Heat input  ? And which graph do I refer? I use GTAW + SMAW , also automatic GMAW I have thickness from 16.22 to max of 50.2mm . 

Thanks in Advance 

TDK Yokesh 

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