Thursday, October 10, 2013

Re: [MW:18904] Tank Bottom and annular Plate welding (Urgent)

Dear sam
It is not required to remove coating for the plate edge, because it is not going to effect the weld on other side, hence you can proceed with weld, after completion of welding the welds soundness  shall be checked by vacuum box testing.


On Wed, Oct 9, 2013 at 7:11 PM, Sam <onlyprivate2007@gmail.com> wrote:
dear experts,

we are erecting site storage tank as per api 650. civil foundation is completed.
at present we did coating at back surface of bottom and annular plates completely without any recess (masking tapes) on welding edges. 
now we have to start annular plate butt weld and bottom plates lap weld joints. our client is asking us to remove the coating from weld edges 1 inch minimum from all plates. annular plate is having backing strip welded one side.

my doubt is that this coating is only on back side and it should not affect the welding root bead of butt and lap joints much because we are welding from only one side? is it mandatory to provide open area at welding edge on back surface of those plates ? please provide any code reference.

regards,
sam.

--
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/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
 
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.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.

--
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/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
 
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.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.

No comments:

Re: [MW:34832] Inquiry about Single Bevel with Back Grinding

Dear Uday, As per your question that one is called with backing only,Simple both side you are welding it is backing with strip or without st...