Dear Ahmed,
P5 : Preheat 200 deg.C, PWHT : applicable for all thickness. Temp. as per B31.3 Table for Heat treatment
P11: Preheat 200-250 DegC, followed by preheat maintainence after completion of joint at 300 deg for 30 min. PWHT : as per B31.3 Table for heat treatment
P22: same requirement as above for P11. welding consumable will be different for all grades.
Regards
Mukesh
Lurgi
On Sun, Mar 8, 2009 at 11:08 PM, Ahmed Eissa <ahmedeissa16@yahoo.com> wrote:
--- On Sun, 3/8/09, Ahmed Eissa <ahmedeissa16@yahoo.com> wrote:
From: Ahmed Eissa <ahmedeissa16@yahoo.com>
Subject: how to weld astem material A335
To: materials-welding@googlegroups.com
Date: Sunday, March 8, 2009, 5:35 PM
Seamless Ferritic Alloy-Steel Pipe for High-Temperature services.
can any one help how to do preheat and post weld heat treatment. if possible i will be glad if any one share a premade WPS and PQR to use as guide
thanks in a dvance
--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
-~----------~----~----~----~------~----~------~--~---
No comments:
Post a Comment