AAA89
Mechanical
- May 5, 2021
- 4
Hi,
I had a little confusion regarding on the used of Joint Efficiency value for seamless head for situation below:-
1. Seamless Head (Torispherical)connect to vessel with type 2 (Single weld with backing strip), Full RT - Medium lethal.
My question is should the Joint Efficiency for seamless head still be E =1.0 (Refer to UW-12 (d)) or should it be E = 0.9 (if refer to Table UW-12)
I Think E = 1.0 is correct but the maker said that E should be 0.9 due to the type 2 condition.
I had a little confusion regarding on the used of Joint Efficiency value for seamless head for situation below:-
1. Seamless Head (Torispherical)connect to vessel with type 2 (Single weld with backing strip), Full RT - Medium lethal.
My question is should the Joint Efficiency for seamless head still be E =1.0 (Refer to UW-12 (d)) or should it be E = 0.9 (if refer to Table UW-12)
I Think E = 1.0 is correct but the maker said that E should be 0.9 due to the type 2 condition.