Plug Weld Classification
Plug Weld Classification
(OP)
Hello,
Square tubing welded onto another part of a weldment. The tubing will have end caps welded on and small relief holes drilled in them for heat treatment purposes. The holes will be welded after welment cools. Because of the lack of backing what would you consider this weld as per D1.1. What kind of WPS would be made for this?
Thank you in advance!
Square tubing welded onto another part of a weldment. The tubing will have end caps welded on and small relief holes drilled in them for heat treatment purposes. The holes will be welded after welment cools. Because of the lack of backing what would you consider this weld as per D1.1. What kind of WPS would be made for this?
Thank you in advance!





RE: Plug Weld Classification
AWS D1.1 addresses the situation as a repair for a mislocated hole. It requires backing to meet the requirements of prequalification or the contractor must qualify the welding procedure to demonstrate the resulting weld is adequate to meet code requirements.
Best regards - Al
RE: Plug Weld Classification
Thanks again!
RE: Plug Weld Classification
Best regards - Al
RE: Plug Weld Classification