First option; Ask the vendor to qualify a WPS with the same type material and heat treatment (sol annealing) as used on the castings.
Second option; if this is a standard practice followed by the vendor since long time than vendor may take guarantee for weld strength and corrosion properties and considering cage only an internal non-pressure component a concession can be granted provided vendor is a reputed one.
|abbey kangale <firstname.lastname@example.org> |
Sent by: email@example.com
02/06/2009 11:25 AM
|Dear All |
I have case for CF8M casting for Valves as per B16.34 which involves welding for internal cage fittment and ...
Foudry has done welding and then they carryout subsequent Heat Treatment 1070Deg cel.to satisfy CF8M heat treatment requirement.
When we asked for WPS/PQR foundry has submitted WPS/PQR for welding without PWHT and PQR is qualified without Heat Treatment requirement and for which I had taken a objection .
Can Group advise my objection rersolution and corrective action as casting are ready for valve asssembly for our project
Explore and discover exciting holidays and getaways with Yahoo! India Travel Click here!
======================================================= Confidentiality Notice This communication and the information it contains:- (a) Is intended for the person(s) or organisation(s) named above and for no other person(s) or organisation(s). (b) May be confidential, legally privileged and protected in law. Unauthorised use, copying or disclosure of any of it may be unlawful. If you have received this communication in error, please contact us immediately by email at Postmaster@fwuk.fwc.com. =======================================================
To post to this group, send email to firstname.lastname@example.org
To unsubscribe from this group, send email to email@example.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.