Welding of insulation pin.

[Manoj John]

Dear members,

I have to fabricate Boiler casings, ducts, stacks etc. and we need to weld insulation pins.  My client told us to qualify a procedure for stud welding.  we have qualified GTAW procedures and SMAW groove welding procedures as per ASME Section IX.  I told to our client since we had a qualified procedure then no need for another stud welding procedures because we are not going to use stud welding machine or any other technique.  we will use only GTAW or SMAW process with our qualified procedures.  Fabrication code is ASME Sec, I.

My question is do I need a procedure for qualifying stud welding or can I use the existing procedure after checking all parameters are acceptable for welding.

My understanding is that if we are not using a stud automatic welding machine then no need for qualifying another procedure.

Thanks and Regards.

Manoj

[John Henning]

That is correct.  Need to watch qualified base metal thickness requirements  if not fillet welds.

--
To post to this group, send email to material...@googlegroups.com
To unsubscribe from this group, send email to materials-weld...@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-weld...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[Hareesh K V]

Stud welding is the most economical and easy method for the insulation pins.

Gtaw and smaw can be but it will be a tedious task.

hope the studs aren't containing flux at the bottom.

[zakir ali]

Dear
As long as the process and type of process is same as qualified one and maintaining all the essential variables. Then there is no need to qualify a separate procedure. 

Sent from RediffmailNG on Android

Get your own FREE website, FREE domain & FREE mobile app with Company email.

Know More >