Joint Efficiencies 1

[aslav]

I have a catagory B, single butt, circumfrential weld. The shell in question is over 24". According to Table UW-12 I cannot use a single welded butt joint, or am I mistaken? If I can use it would it require a full RT? The material is SA-53-B.

AJ
QA/QC Manager

 

[weldtek]

You can use a single welded butt joint as a Type 1. Perform RT per the table to achieve the required JE.