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Re: [MW:23317] Pre-heat & pre heat maintenance

By Materials & Welding
The preheat method is not specified in the ASME Code. It is a matter of sound engineering practice

Sent from my BlackBerry 10 smartphone.
From: pradip kumar Sil
Sent: Πέμπτη, 20 Αυγούστου 2015 - 10:29
To: materials-welding
Reply To: materials-welding@googlegroups.com
Subject: [MW:23316] Pre-heat & pre heat maintenance

 Dear All,
Is there any code requirement for  ASTM A335 Gr P-22 material before welding & pre heat maintenance by resistance coil ( For uniform pre-heating  pre heat maintenance ) for power piping
Regards
Pradip

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