Welding of P9 & P91 material

[Bathula Raghuram (Mumbai - PIPING)]

This is not a dissimilar weld, however consider it as special/critical weld in terms of Weldability, thermal treatment ...

You can use either E80XX-B8 or E 90XX-B9, however separate PQR is required.

 

From: piping...@yahoogroups.com [mailto:piping...@yahoogroups.com] On Behalf Of des...@toyoindia.com
Sent: Friday, January 14, 2011 1:05 PM
To: material...@googlegroups.com
Cc: piping...@yahoogroups.com
Subject: [piping_valves] <Security Level 2>Welding of P9 & P91 material

Dear Respected members,

Which electrodes are used for welding of P9 & P91 material, Is this considered as dissimilar welding & Special Welding.
Can the electrode & process used for welding P9-P9 material be used for welding P9-P91 material also.

Your reply shall be highly appreciated.

Thanks & Regards,
Dhwani Desai
Planning & Piping Dept.
Ext.-7681

[manish kulkarni]

Try to have E80XX-B8 L electrodes to have Hardness control.   Regards,     --- On Fri, 14/1/11, Bathula Raghuram (Mumbai - PIPING) <R.Ba...@ticb.com> wrote:

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